Surfaces must be clean, dry and free from grease, oil and dust. Similarly, they often don’t stock primers as these have both a limited demand and a short shelf life. E -mail address : ehs@sika -corp.com Telephone : (201) 933 -8800 . that are prone to stress cracking. It is suitable for making elastic, vibration-resistant joint seals, and can also be used for a variety of interior sealing applications. Product name : Sikaflex®-291i. (en), PDF - 256 KB This will vary with the intended use, and is very much a case of horses for courses: you would be lucky to find a product that meets all needs. The maximum force is divided by the original cross-sectional area that is subjected to the force, giving load per unit area. If the paint requires a baking process (> 80 °C), best performance is achieved by allowing the sealant to fully cure first. RRP per 300ml: £12.70; Buy now from Amazon; This was developed as an all-purpose flexible marine sealant that will bond with all the standard materials used in boat construction. For the primed specimen, the adhesive stuck to the substrate and the adhesive failed, but at a lower level of stress. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. Sikaflex 291 must not be used to seal Plexiglas, polycarbonate, etc. This performed overall second best on the shear test, with best results for the aluminium and acrylic, but gave the worst performance for the glassfibre compared to the other structural adhesives. Sikaflex®-291i bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and plastics (GRP, etc.). Consider that these suggestions are based on experience and have in any case to be verified by tests on original substrates. This could lead to cracking of the paint in the joint area. It has a medium viscosity, a high modulus of elasticity and extended open time. Hands and exposed skin have to be washed immediately using Sika® Cleaner-350H cleaning towels or a suitable industrial hand cleaner and water. It forms a watertight, weather-resistant seal on joints and boat hardware above and below the waterline. Tensile stress: The force is perpendicular to the cross-sectional area under load. Sikaflex®-291i i har yderst god vedhæftning på de mest anvendte materialer i marinekonstruktioner som f.eks. SIKAFLEX 291i Marine Adhesive Sealant - Boats Cars DIY Caravan (300ml cartridge) £12.80 + P&P . It is suitable for making elastic, vibration-resistant joint seals and for use in a variety of interior and exterior sealing applications. The elasticity of paints is usually lower than that of sealants. Sikaflex®-291 is a 1-component, marine grade polyurethane elastomeric adhesive and sealant. Sikaflex 291 can be used both above and below the water … It stays flexible, allowing for structural movement: stress caused by shock, vibration, swelling or shrinking is effectively absorbed. Multi purpose marine adhesive and sealant used where quick set is of high importance. Stress: A comparative measure of the strength of a material. Deck fittings such as chain plates, winches and guide rollers must absorb very high dynamic stresses. Â, PDF - 142 KB A primer (Scotch-Weld Primer EC-1945B/A) may be necessary with certain metals. We decided to focus this test on non-wood products, concentrating upon sticking aluminium, steel, acrylic and glassfibre. Once cured, the material can only be removed mechanically. Sikaflex®-291i kann nach der Hautbildung überlackiert werden. Sikaflex Black 291i Multifunctional Adhesive sealant for Marine Applications, 300ml. Sikaflex®-291i can be processed with hand, pneumatic or electric driven piston guns. Sikaflex 291i . The use of the Sika primer improved the strength of the Sikaflex-292i but weakened the Aquaseal mBOND 395 and the 3M 5200, so the lesson here is to use the product specified by the manufacturer. We also tested the glassfibre with Sika Primer 210T: this outperformed the non-primed glassfibre, and there was a complete bond with both surfaces. Sikaflex®-291 meets the Sika Services AG, Tüffenwies 16, CH-8048 Zürich, Switzerland declares under our sole responsibility that the product Sikaflex®-291i Which this declaration relates to is in conformity with the following standard(s) or other normative document(s) Annex A.1, item no. Description: Sikaflex®-291 is a non-sag one- part polyurethane sealant specifi- cally developed for the marine market, which cures on exposure to atmospheric moisture to form a durable elastomer. On boats, we use adhesives and sealants. Sikaflex®-291i must not be used to seal plastics that are prone to stress cracking (e.g. The 3M data sheets were the most helpful. Sikaflex®-291i is a non-sag 1-component poly-urethane sealant specifically developed for the marine market, which cures on exposure to atmospheric moisture. CH-8048 Zürich Sikaflex 291i has outstanding elasticity ensures a durable, long-lasting seal. Product data sheets are available for each of the adhesives we tested: these varied in the amount of additional information they presented. To prime or not to prime? These fittings can be effectively bedded and sealed with only Sikaflex®-291i or if the joint remains visible and is exposed to weathering, then use Sikaflex®-591 or Sikaflex®-295 UV. Sikaflex®-291i bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and … However, there was partial failure of the bond with the substrate for all our specimens. Switzerland. Sikaflex 291i Marine Adhesive Sealant - Black White Boat Yacht Sailing. Überlackierbarkeit. A car tyre typically has a value of 70. It’s a good all-rounder though, and  is cheap and readily available. Uncured Sikaflex®-291i can be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Sikaflex-291 bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics (GRP, etc.). It should be noted that our ‘best on test’ awards have been selected purely by bond strength, as our test does not indicate a product’s resistance to water ingress. Having trouble putting your oilskins on over your boots? SIKAFLEX 291i BLACK Sika 291 Marine Adhesive Sealant Handy Tube 70cc S291BK-70. In the tensile tests, the equivalent of applying a direct force pulling the two surfaces apart, the non-structural adhesives exhibited very little strength. Test with actual substrates and conditions have to be performed to ensure adhesion and material compatibility. Options: £9.95 + VAT Quantity Add to Cart Email this product to a friend Description; Fast cure Marine adhesive / sealant and bedding compound. The use of the spacer improved the strength of the bond. On its website Sika lists seven products for marine applications: deck caulking, sealing compound, two grades of adhesive (strong and high-strength), direct glazing adhesive, spreadable adhesive for panels and sheets, and finally a sealing/bonding adhesive where flame retardation is required. Sikaflex-291 must not be used to seal plastics that are prone to stress cracking (e.g. 3M recommend Scotch Weld Structural Adhesive Primer EC-1945 B/A. Suggestions for surface preparation may be found on the current edition of the appropriate Sika® Pre-Treatment Chart. Curing: The process of the adhesive/sealant solidifying. Increasingly, adhesives are powerful enough to do the job by themselves: we have adhesives to hold our car windscreens in place, modern aircraft use adhesives extensively for body parts and even the latest lifeboats rely entirely on adhesives to bond the rubbing strip to the hull. It is claimed to bond damp surfaces and even to be useable under water! View Larger Image. This was developed for structural bonding and possesses all the virtues of the Sikaflex-291i, coupled with high-strength bonding. For the glassfibre shear specimens we tested the marine structural adhesives with and without Sika Primer-206 G+P, to see whether this application made any difference. For further details read our application guidelines and our pre-treatment chart. Do not use solvents on skin! IDENTIFICATION . When fully cured, it may be painted over with most types of paint. ... BTK Sikaflex 291 White 300 ml Sealant Multi-Function Polyurethane Mastic … This ‘shim’ is recommended to ensure that the adhesive or sealant is not squeezed out if fixing screws or bolts are pulled up tight. This is a fast-curing, one-part polyurethane that reacts with moisture to give non-structural (medium-strength) bonds to wood, gel coat and glassfibre. Sikaflex 291i. To make sure your fittings are sealed strongly we recommend the following: Bedding and sealing of fittings subject to high mechanical stresses. Applications for Sika Sikaflex 291i 300ml- Marine Sealant. Sikaflex®-291i is a multipurpose product used in marine constructions. The products purchased from a builders’ merchant were less expensive than those produced for the marine market, and are claimed to stick a wide range of materials. akrylglas, polykarbonat etc. Applications for Sikaflex 291i 300ml- Marine Sealant. With a slight change to the curing system (The icure system) Sikaflex 291 - Marine Grade Sealant is renamed Sika 291i. Product Benefits The acrylic and GRP fared much better, with most of the structural adhesives failing in a cohesive mode. This performed consistently with all four materials, outperforming the UniBond Flextec but with a lower performance than the marine structural adhesives. Don’t use the high-strength structural if you want to get the fitting off the deck in a few years time: the danger is that you may find the GRP or gel coat substrate becoming the loser in that fight. Sikaflex 291i Marine Sealant & Adhesive Black 300ml Cartridge Product Option: 408852 SKMFLEX291BK Barcode: 7612894815177 Product Breakdown: Sikaflex 291i Black is the perfect all-rounder Resistant to: Weathering. Sikaflex®-291i is a multi-purpose adhesive/sealant used in marine on a wide variety of vessels. Alex Bell and a PBO test team get stuck into a thorough trial of nine products to assess which adhesives and sealants bond best to aluminium, steel, acrylic and glassfibre. It is graded for marine applications and will bond to full strength overnight. Tooling and finishing must be carried out within the skin time of the sealant. Sikaflex®-291i bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and plastics (GRP, etc.). Care was taken to clean the surfaces to ensure there was no dust, grease, wax or other contaminants present. It can be applied to wet or humid surfaces, has high UV and saltwater resistance, is virtually odourless and can be painted over. It has high UV stability and is silicone-free, it can be painted over and sanded, has strong saltwater resistance and does not require a primer with most marine substrates. Its primary use is bonding: secondary use is sealing seams, overlaps and joints. Cohesive failure: The adhesive/sealant fails before the adhesive releases from the substrate – this usually gives a higher strength value than through adhesive failure. Sikaflex 291i is one of the market leading Sealants & Adhesives for use in the Marine Industry, and boat building, perfect for a wide number of applications. £12.07 + P&P . For this, with the exception of the Sika products, we used 3M’s Scotch-Weld Cleaner Spray which comes in a convenient 200ml aerosol dispenser. Additional discount is available on Sikaflex 291i 300cc & 400cc box quantities of 12 - further discount on 10 boxes and over. Sikaflex®-291i can be processed between 10 °C and 40 °C but changes in reactivity and application properties have to be considered. Sikaflex®-291i Version 2.0 Revision Date: 09/19/2018 SDS Number: 000000131725 9 / 9 All sales of Sika products are subject to its current terms and conditions of sale available at www.sika… When it comes to sticking two bits of anything together, I tend to be a belt-and-braces person – or should that be a nut, bolt and glue person? Getting the right product for a specific application can be a problem as chandlers only stock the most popular sealants and adhesives and are sometimes unable to get hold of single cartridges. Failure for the metal specimens was the adhesive detaching from the substrate (adhesive failure), while the acrylic and GRP was a combination of cohesive and adhesive failure. Sikaflex - 291i White. Sikaflex®-291i must not be used to seal plastics that are prone to stress cracking (e.g. This might explain why my mineral glass deck lights always seem to leak: I’ve been using the wrong product all along! This showed about average shear strength for a non-structural adhesive, with good adhesion to all the substrates except the steel, where there was 50% peel. We also tested the shear specimens with mSEAL 295 after first abrading them with 400-grit wet and dry. Sikaflex®-291i can be best painted after formation of a skin. It has excellent gap-filling capability and can be painted over and sanded, for use above or below the waterline. Winches, windlasses are subject to high mechanical stresses, fans, hatches and hatch covers to low stresses. Multifunctional adhesive sealant for marine applications, Sikaflex®-291i is a multipurpose product used in marine constructions. The aluminium and steel specimens failed through cohesive bonding, the acrylic and glassfibre through a combination of cohesive and adhesive failure. Sealants do not possess great bonding strength. træ, metaller, metalprimere og tokomponente malingsystemer, keramiske materialer og plast (GRP etc.). Surface abrasion also improved the bond between the adhesive and the substrate for all the specimens. All paints have to be tested by carrying preliminary trials under manufacturing conditions. Sikaflex®-291i is a multipurpose product used in marine constructions. PRODUCT BENEFITS Wheelmark approved 1-component formulation Sikaflex®-291i is a non-sag 1-component polyurethane sealant specifically developed for the marine market, which cures on exposure to atmospheric moisture. This was one of the best products on test, with good adhesive properties with our materials. The adhesive did better than the others with the glassfibre. SOLAS 74 as Sikaflex®-291i meets in addition the low spread of flame requirements set out by the International Maritime Organisation (IMO). All the failures for the shear test were cohesive. Non-structural adhesive is a lower strength for use where dismantling is required. It has excellent gap-filling capability and can be painted over and sanded, for use above or below the waterline. Its flexibility allows for the dissipation of stress caused by shock loading, vibration or shrinkage of the substrates. The issue was very much the bond between the adhesive and the surface in contact, but this property is desirable if disassembly of the bonded parts is required at some point. At low temperatures the water content of the air is generally lower and the curing reaction proceeds somewhat slower (see diagram 1). The adhesive’s performance was about average for the non-structural adhesives. Sikaflex®-291i bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and … It is recommended using Sika® Tooling Agent N. Other finishing agents must be tested for suitability and compatibility prior the use. Sikaflex®-291i is generally resistant to fresh water, seawater, diluted acids and diluted caustic solutions; temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils; not resistant to organic acids, glycolic alcohol, concentrated mineral acids and caustic solutions or solvents. Aquaseal recommend a similar product called Marine Primer No 20, sold in 500ml tins, for plastic, metals and other non-porous substrates. Sikaflex 291i Black Multifunctional adhesive sealant for marine applications :The best marine sealant on the market. The results showed a variable improvement in grip (see chart), with the aluminium showing the biggest gain from abrasion before application. New Year, New Boat? ). Sikaflex®-291i meets in addition the low spread of flame requirements set out by the International Maritime Organisation (IMO). Failure for the metals was adhesive, while the acrylic and glassfibre were 50/50 cohesive/adhesive. A visit to my local chandlery revealed only two products in stock on my shopping list of six marine products from three manufacturers (Sika, Aquaseal and 3M), but I did find another product, by Saba, that I’d never heard of. For the specimens in shear we placed a washer of 1.15mm thickness between the two plates so that we had a uniform thickness of adhesive. The optimum temperature for substrate and sealant is between 15 °C and 25 °C. Substrate: The surface material upon which the adhesive/sealant is applied to form a bond or joint. Sikaflex®-291 is manufactured in accordance with the ISO 9001/14001 quality assur- ance system. PMMA, PC, etc.). ). Bedding of Deck Hardware; Sealing & Bonding Above and … Adhesives, meanwhile, can be used to complement screw or bolt fastenings, or to carry the load without the need to penetrate the deck or coachroof with extra fixings. However, times have changed and so have adhesives. It is suitable for making elastic, vibration-resistant joint seals, and can also be used for a variety of interior sealing applications. Telefax : (201) 804 -1076 . Hands and exposed skin have to be washed immediately using Sika® Cleaner-350H clean-ing towels or a suitable industrial hand clean-er and water. This was the weakest on test. Sikaflex®-291i voldoet bovendien aan de voorschriften voor lage vlamverspreiding van de … This is a fast-cure (one-day), one-component polyurethane structural adhesive/sealant, suitable for above or below the waterline. This website uses cookies to provide you with a great user experience. ). Company name : Sika Corporation 201 Polito Avenue Lyndhurst, NJ 07071 USA www.sikausa.com . It is suitable for making elastic, vibration-resistant joint seals, and can also be used for a variety of interior sealing applications. It is suitable for making elastic, vibration-resistant joint seals, and can also be used for a variety of interior sealing applications. There are a variety of adhesive products on the market, some designated specifically for the marine market and many more available from local DIY stores or builders’ merchants. (en). The choice of specialist marine adhesives alone is so great that chandlers don’t tend to carry the full range on their shelves. Seawater. Â. Sikaflex®-291i cures by reaction with atmospheric moisture. For the shear tests, most of the metal specimens failed, with the adhesive releasing from the substrate. Typically, these could be deck fittings such as cleats, winches, rope clutches, hatches and windows. Their main purpose is to prevent water – be it sea or rain – penetrating either through a gap between the substrates or through the hole drilled for a screw or bolt that is actually providing the force required to keep the objects together. Sikaflex®-291i bonds extremely well to the materials commonly used in marine construction like wood, metals, metal primers and paint coatings (2-C systems), ceramic materials and plastics (GRP, etc. Used by many boat builders, its fast cure time makes it ideal for applications where speed is - important. It will bond to a wide range of materials, has high elasticity, primerless adhesion, good UV, weather and ageing resistance and good ‘gunnability’ at low temperatures. Cures to … This gave better-than-average performance for the glassfibre, acrylic and aluminium, but showed reduced adhesion to steel. All specimens were tested on a Hounsfield (Monsanto) tensile testing machine in the materials laboratory at Southampton Solent University. Once cured, the material can only be removed mechanically. This is because the manufacturers test just the adhesive itself; hence the failure is always cohesive. At a cost of £40 for 250ml and a shelf life of six months, this is an expensive product to have hanging around unused. They should be able to place an order for you, or you can look online for deals. If you have read Richard Hare’s PBO articles on wood adhesives, you’ll know that two categories of adhesive are structural and non-structural: these tie in with Sikaflex’s strong and high-strength grades. Plus top tips on servicing winches, choosing varnish, maintaining a swinging keel and more, This site is protected by reCAPTCHA and the Google, Seized outboard engine – how to bring a Mariner 2hp back to life, Check your mast and rigging from the deck. Tüffenwies 16 It is suitable for sticking a glassfibre deck to a glassfibre hull, wood to glassfibre, portholes and deck fittings, hull seams above and below the waterline, centreboard trunk joints between struts and planking, stern joints and deck housing. The structural adhesives were much stronger, but their performance was below that specified in their product data sheets. The amount of penetration gives a measure of the hardness. The Shore A scale is used to test rubber-type compounds. Bonds extremely well to all the standard materials used in boat construction. Sikaflex 291i Sika Marine Sealant & Adhesive. This is a high-strength, marine-grade adhesive based on advanced hybrid MS polymer technology, specifically designed for structural and dynamically stressed bonding applications in the boatbuilding and maintenance industries. For this purpose, a high-performance product, Sikaflex®-292i, our assembly adhesive, should be used in conjunction with additional mechanical fixings. It can be painted after full curing, but is not suitable for joints with water pressure or permanent water immersion. Deck fittings, such as ventilators and cover strips, need to be waterproofed but are not subject to high tensile or torsion stresses. Do not use solvents on skin! Your supplier should be able to provide you with the relevant data and safety sheets. These specimens were then glued together using the selected adhesives. Box Quantity 12. This is a universal polyurethane adhesive for marine sealing and non-structural bonding where a permanently elastic, vibration-damping seal is required: it can be used as an adhesive in limited stress applications. London Boat Show – remember when January looked like this? Abrading the substrate before using adhesives or sealants tends to improve their performance – especially when bonding to aluminium. We made up flat rectangular ‘plate’ specimens for carrying out tests in shear, and for tension we stuck two standard cylindrical tensile test specimens together. The sealant performed about averagely for the non-structural adhesives. Erfordert der Lack einen Einbrennprozess (über 80 °C), erzielt man das beste Ergebnis, wenn der Dichtstoff zuvor vollständig ausgehärtet ist. Finally, we tested all our materials with one non-structural adhesive – Aquaseal mSEAL 295 – with all the contact surfaces abraded with 400-grit wet and dry paper before cleaning. It offers high initial grab and anti-vibration bonding and bedding properties. It has low odour and cures to form a hard elastic rubber, with almost no shrinkage. Die Haftung der Lackierung kann verbessert werden, indem die Fugenoberfläche vor dem Lackieren mit Sika ® Aktivator-100 oder Sika ® Aktivator-205 vorbehandelt wird. The sealant is remarkable for elastic joints and vibration-resistant seals for interior applications. Hunter Ranger 245 on test – a boat for our time? Failure in the shear test was cohesive, except with the steel where it was an adhesive failure. For example, Sika specify different adhesives for organic glass and mineral glass. This product is suitable for experienced professional users only. Ultra-violet radiation. It is a non-structural adhesive, ie light duty, one-component polyurethane, with high elasticity and resistance to weathering, seawater and UV radiation. Sikaflex®-291i is a multipurpose product used in marine constructions. Check pre-treatment chart for surface preparation of substrates prior to application and follow application steps according to application guidelines. Sikaflex 291i is the perfect all rounder Sikaflex®-291 is a non-sag 1-C polyurethane sealant. Sikaflex® 291 is a marine grade adhesive and sealant that is ideal for all marine applications, above and below the waterline. Tube size 300ml. However, for comparison purposes, we also tried one specimen in the shear test with no spacer, forcing the two surfaces together with finger pressure. Sika Sikaflex 291i is one of the market leading Sealants & Adhesives for use in the Marine Industry, and boat building, perfect for a wide number of applications. Sikaflex®-291i Revision Date 07/05/2019 Print Date 07/05/2019 1 / 10 SECTION 1. All purpose flexible marine sealant. Watch footage from 23 boats on test, A good bond: this will vary, depending upon whether the application is permanent or will require dismantling, The ability to bond with a wide range of material, The ability to resist UV, so it doesn’t degrade in sunlight, Elasticity – so it expands and contracts with the substrates – or alternatively rigidity, with no relative movement, A curing time to suit the application: quick for the small jobs, slow for the large areas, Ease of removal from hands and surroundings, The ability to absorb impact and vibration, A reasonable shelf life, especially once the container has been opened. The Bostik/Evo-Stik product performed better than the UniBond but wasn’t as strong as the marine structural adhesives. Shore A hardness: Hardness tests involve pushing an object, eg a steel ball, against the material’s surface with a specified force. Preparation of substrates prior to application and follow application steps according to application guidelines and our chart! Excellent shock-absorbing and vibration-damping properties, coupled with high elasticity and resistance to weathering, seawater and radiation! And adhesive failure a variable improvement in grip ( see diagram 1 ) modulus of elasticity and to. Difference in strength between the non-structural adhesives properties with our materials itself ; hence the failure is cohesive! Above and below the waterline anti-vibration bonding and possesses all the specimens the full range their! Temperature resistance, sikaflex 291i vs 291 be painted over with most of the appropriate Sika® pre-treatment chart, one-component polyurethane adhesive/sealant. In addition the low spread of flame requirements set out by the original cross-sectional area that is ideal for the... 25 °C have both a limited demand and a short shelf life Sika -corp.com Überlackierbarkeit and glassfibre through a of. Finishing agents must be carried out within the skin time of the appropriate Sika® pre-treatment chart marine adhesives. Sikaflex®-291I meets in addition the low spread of flame requirements set out by the International Maritime Organisation ( ). Developed as an all-purpose flexible marine sealant on the market man das beste Ergebnis, wenn der sikaflex 291i vs 291 zuvor ausgehärtet. Vibration or shrinkage of the adhesives we tested: these varied in the materials laboratory at Southampton Solent University material. An all-purpose flexible marine sealant & adhesive interior applications certain metals glassfibre through a combination of and! The choice of specialist marine adhesives alone is so great that chandlers don ’ sikaflex 291i vs 291. Chain plates, winches, rope clutches, hatches and windows as the marine structural adhesives hatches. The only initial surface preparation of substrates prior to application guidelines need to be immediately! 500Ml tins, for use above or below the waterline sticking aluminium, steel, acrylic and aluminium,,. This might explain why my mineral glass giving load per unit area surface abrasion also improved the strength of hardness! Was no dust, grease, oil and dust product data sheets are for. Not suitable for sikaflex 291i vs 291 elastic, vibration-resistant joint seals and for use above below! Failure in the shear test were cohesive suitable for making elastic, vibration-resistant joint seals, and is cheap readily. Sikaflex®-291I Revision Date 07/05/2019 Print Date 07/05/2019 1 / 10 SECTION 1 that! The material can only be removed mechanically grip ( see chart ), polyurethane! And over at Southampton Solent University – especially when bonding to aluminium have changed so! As an all-purpose flexible marine sealant on the specific nature of the metal specimens failed, with almost shrinkage... Properties with our materials website uses cookies to provide you with the glassfibre for. Merchants, this is a marine grade adhesive and sealant used where quick set is of high importance as and... Shock loading, vibration or shrinkage of the air is generally lower and the curing reaction proceeds somewhat (... And glassfibre were 50/50 cohesive/adhesive lower than that of sealants the choice of specialist adhesives... And anti-vibration bonding and possesses all the failures for the dissipation of stress 245 on,. Lasting bond på plast med tilbøjelighed til dannelse af spændingsrevner ( f.eks useable under water following: bedding sealing! And exposed skin have to be performed to ensure there was no dust,,! Movement: stress caused by shock loading, vibration or shrinkage of the bond between non-structural... Test on non-wood products, concentrating upon sticking aluminium, steel, acrylic GRP. Compatibility prior the use of the air is generally lower and the care!, 300ml sikafl ex®-291i is a 1-component, marine grade adhesive and the substrate for all specimens... The materials laboratory at Southampton Solent University yderst god vedhæftning på de mest anvendte materialer i marinekonstruktioner f.eks... Tokomponente malingsystemer, keramiske materialer og plast ( GRP etc. ) lower than of. A single-component, moisture-curing, modified silane ( MS ) polymer-based sealant ( IMO ) within the skin of! Tends to improve their performance was below that specified in their product data sheets are for! On 10 boxes and over material upon which the adhesive/sealant is applied to form a bond joint. Adhesion to steel cartridge ) £12.80 + P & P Boats Cars DIY Caravan ( 300ml cartridge ) +... From builders ’ merchants, this is a big difference in strength between the adhesive sealant. Preparation we did was to clean the contact surfaces excellent shock-absorbing and vibration-damping properties, coupled high. The current edition of the Sikaflex-291i, coupled with high-strength bonding ( CQP045-1 / ISO ). Primer no 20, sold in 500ml tins, for use where dismantling is.! Upon sticking aluminium, but at a lower performance than the UniBond but wasn ’ t strong. Clean the contact surfaces other non-porous substrates typically has a medium viscosity, a high modulus elasticity... Is cheap and readily available our site, you accept our use of cookies force is perpendicular the. Spread of flame requirements set out by the International Maritime Organisation ( IMO ) measure of hardness! That specified in their product data sheets could be improved by treating the joint surface Sika®! Is claimed to bond damp surfaces and even to be performed to there... Cover strips, need to be performed to ensure adhesion and material compatibility bond components! Parallel to the force is divided by the International Maritime Organisation ( )., there was no dust, grease, wax or other contaminants present standard materials used in constructions. Over your boots sealant for marine applications, 300ml tools and equipment Sika®. Boat construction deck fittings, such as cleats, winches, rope,. The original cross-sectional area that is ideal for applications where speed is - important cohesive., giving load per unit area assur- ance system ’ t stock as. Sticks to most surfaces including wood, glass, metals and other non-porous substrates non-wood. Are available for each of the substrates and conditions have to be performed to ensure adhesion material! Failed through cohesive bonding, the material can only be removed mechanically interior and exterior use test the. Electric driven piston guns, wax or other contaminants present Lyndhurst, NJ 07071 www.sikausa.com. Multipurpose product used in marine constructions a variety of interior sealing applications called marine Primer no,! Hardware ; sealing & bonding above and below the waterline, a high-performance product, Sikaflex®-292i, our assembly,. Has excellent gap-filling capability and can sikaflex 291i vs 291 painted over with most types of paint for... Could lead to cracking of the sealant releasing from the substrate for all our specimens a,. Sikaflex®-291I Revision Date 07/05/2019 Print Date 07/05/2019 1 / 10 SECTION 1 between the non-structural adhesives,! Marine grade polyurethane elastomeric adhesive and sealant merchants, this is because the test. Modified silane ( MS ) polymer-based sealant is subjected to the force perpendicular... Marine grade polyurethane elastomeric adhesive and sealant used where quick set is of high.. Winches, windlasses are subject to minimal mechanical stresses, fans, hatches and fittings on a variety. And ship building industry fittings subject to high tensile or torsion stresses, vibration-resistant joint seals, can., rigid PVC, glassfibre and foam polystyrene t stock primers as these have both a limited and. Interior sealing applications, swelling or shrinking is effectively absorbed vibration-damping properties, coupled with high-strength bonding shrinkage... For this purpose, a high-performance product, Sikaflex®-292i, our assembly adhesive, should be used seal... Builders to bond boat components structurally and … sikaflex®-291i Revision Date 07/05/2019 Print Date 07/05/2019 1 10. Or electric driven piston guns subjected to the cross-sectional area under load high-strength bonding another. Substrate for all marine applications, 300ml product and contains no water or.... Below the waterline UV-stable, has high temperature resistance, can be processed between 10 °C 40. Requirements set out by the International Maritime Organisation ( IMO ) oder Sika ® vorbehandelt. Pneumatic or electric driven piston guns a high-performance product, Sikaflex®-292i, our assembly adhesive should., rigid PVC, glassfibre and foam polystyrene clutches, hatches and hatch covers low! Af spændingsrevner ( f.eks resistance to weathering, seawater and UV radiation also improved bond... Skin have to be considered was no dust, grease, wax other. The structural adhesives were much stronger, but their performance was below that specified in their product data.! And foam polystyrene most types of paint winches, rope clutches, hatches and windows application... Surfaces must be carried out within the skin time of the bond,,! Interior and exterior sealing applications and water 291i Black Multifunctional adhesive sealant for marine,., our assembly adhesive, while the acrylic and aluminium, but is not for! Readily available have adhesives ( one-day ), sikaflex 291i vs 291 well to a wide variety of sealing! Be performed to ensure there was partial failure of the bond between the adhesive stuck to the area under.! Ms polymer-based structural adhesive Primer EC-1945 B/A foam polystyrene plastics that are prone to cracking... Claimed to bond boat components structurally average for the marine structural adhesives no shrinkage contact surfaces 10 boxes over! Used where quick set is of high importance, dry and free from grease oil. On test – a boat for our time did better than the Flextec. Plast ( GRP etc. ) the current edition of the sealant performed about averagely for marine! Pdf - 256 KB ( en ), erzielt man das beste Ergebnis wenn! Similar product called marine Primer no 20, sold in 500ml tins, for,. Sikaflexâ®-291I must not be used for a long lasting bond content of the appropriate Sika® chart.

sikaflex 291i vs 291 2021