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Posted 20 hours ago

Everbuild Tecnic Puraflex 40 High Modulus PU Sealant and Adhesive, White, 300 ml

£7.5£15.00Clearance
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Specifically designed as an easy flow flooring grade for all concrete saw cuts and floor slab expansion joints where abrasion resistance is required Polyurethane sealants create an extremely strong mechanical bond when used on the correct surface. They are UV resistant and can be used below the waterline. In the aviation industry on unpressurized aircrafts, windows are sometimes attached using adhesive sealant only. This is a testament to the strength of modern sealants. It's notable that polyurethane is not compatible with acrylic perspex and other types plastic glazing. If you’re bonding rubber to a painted surface then I’d personally i’d use emery paper to remove the paint then your bonding, rubber to aluminium only. Remove all of the sealant taking care not to damage the glass or frames, using a sharp knife. Tape the window and frames up using frog tape or blue painters tape then apply the sealant in even smooth beads. My next question is, can you reinforce that area underneath with support? It's about investigating why this has occurred. As that area will get heavy rainfall it needs to be well sealed.

You need good mechanical adehsion with flex. Look at the datasheet for Sikaflex 291i. You don’t want to use the 3M products as the hose at some point will need replacing. A non-adhesive sealant will generally rely on the aid of a fitting, screw or bolt to create a waterproof seal. With a normal sealant, you are essentially creating a waterproof gasket. You can't rely on normal sealant to hold anything in place; you are relying on a method of fastening, for example; a screw or bolt. Types Of Sealant If it was me i’d probably get a coded welder patch the hole and have a designated skin fitting with shutoff valve for the inlet. Sealants were originally designed to patch holes in planes during the war but since then they've got a lot more complicated. Corporate competition means companies are continuously trying to outdo each other. The marine industry is constantly screaming out for products that last longer and perform better and subsequently, we are fed increasingly better sealants. A lot of companies who create sealants eventually wise up to the fact that their product will work in the 'marine' industry, and often subtly add it to their datasheet without it being a specific marine product and liable for leisure tax.is all around one part polyurethane adhesive sealant that can be used to bond wood, gel coat and fibreglass. It can also be used above and below the waterline.

There were posts about the "similarity" with CT1 and that it was actually an improved formulation. Also a threat of legal action plus mention in advertising that the OB1 formulation had been in use for over 15 years and made by a private company. I could not find details of the manufacturer and it almost seemed to be a big secret. It appeared reasonable to assume that some sort of legally binding agreement had been signed regarding direct competition or comparison with CT1 by name (could be wrong). It looked great for a few weeks but then the planks dried and swelled etc and it popped the sealant. The sealant wasn't to blame here, the problem was there was a great deal of water getting in through the topsides of the boat. Delamination, leaky fittings and windows resulted in water pouring on the inside of the hull like a waterfall. As the boat was out of the water the planks were dry on the outside and taking a hammering of UV but wet on the inside. The new owner renewed the caulking, dropped it in the water and the problem seems to have been solved. I have since borrowed and cruised it and noticed no water ingress now that planks have swollen. Primer is not always essential unless using on porous surfaces like concrete. If primer is needed, use Sika 3N Primer LIMITATIONS Here is the link to the datasheet for Aquaseal – http://www.everbuild.co.uk/image/data/Tech%20Sealants/mSEAL%20595%20Tech%20Datasheet%20Rev.%202.pdf My memory of the MSDS data is that OB1 was essentially the same as CT1 apart from an additional component. I can't remember what it was but did write that I thought it likely to enhance cross-linking to either speed up setting time or strength of the material, probably both (by promoting formation of urethane links).I’m trying to visualise what it is you’re trying to achieve, I agree that a few photos could definitely help, send them over to [email protected]. We've even created a beautiful acronym for you to remember: 'SFCSS' (pronounced; Suu-Fuu-Cissss). See, if that's not catchy enough for you then I don't know what is! Terms Explained

Not resistant to organic acids, alcohol, concentrated mineral acids and caustic solutions or solvents. All surfaces must be dry and dust free before using Everbuild Puraflex 40. All flaking or loose surface coatings and any old sealants should be removed before application. In addition to that, when using on glass, metal and aluminium, areas should be cleaned with a proprietary solvent cleaner before application for optimum adhesion. When using Everbuild Puraflex 40 with solvents, always ensure adequate ventilation. Avoid heat, sparks and open flames. Observe and follow all precautions listed on the solvent container label. It is not recommended for application to surfaces that are below 5˚C as it is impossible to guarantee a dry, frost-free surface at these temperatures. Therefore the sealant will most likely fail. It is unlikely that priming will be required; however, concrete must be sealed using a Primer. After that, if you are in doubt, consult Technical Services. PRIMER Paint types vary so conduct a trial prior to full application. Some paints have low movement and can Hi Rich, If you are using aluminium frames then essentially the sealant will only need to be used to create a gasket. There is my opinion is no need to have a good adhesion if the window is held tight by rivets or bolts and a frame. Aquaseal mSEAL has been known to work well for this purpose and Geocel Marine Rubber Silicone is something I have personally used with good results. Greg - I have a Meridian 391 2010 the front windows are leaking a little bit and is dripping in the master state room on the bed. I have tried to fill the area where the window sits on the lower side with silicon to achieve a water seal. Does not work. Pulled out all the silicon and I am going to try to fill and seal with Butyl or polyurethane. which would you recommend?

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Before application, please ensure all surfaces are clean, dry and dust-free before using Everbuild Puraflex 40. All old sealant and mastic joints should be removed before application. In addition to that, when using on glass, metal and aluminium, areas should be cleaned using a solvent cleaner before application for optimum adhesion. When using with solvents, always ensure adequate ventilation. Avoid heat, sparks and open flames. Observe and follow all precautions listed on the solvent container label. It is not recommended for application to surfaces that are below 5˚C as it is impossible to guarantee a dry, frost-free surface at these temperatures. Therefore the sealant will most likely fail. It is unlikely that priming will be required; however, concrete must be sealed using a Primer. After that, if you are in doubt, consult Technical Services. Water - visibly dripping through into your cabin during rainy days. Leaking water can often be seen forming small droplets on the bottom of protruding bolt heads. Wait for a forecast of rain or cheat and use a hose to find leaks. If you get your bilge bone dry beforehand, you'll be able to follow the trails of water from any leaky hardware by looking at your bilge areas with a hand torch. This method works amazingly well. If you have a dirty bilge it seems to be even easier and the trail seems to show up clearer where the dirt is wet. Serviceability - how easily will I be able to remove and replace the sealant, how long does it take to set? I’m trying to visualise the issue, the swaging makes it a little more difficult. I’m not entirely, sure how any tube simply put through and hole will have a good seal. For a gasket to work you really need tension pushing outwards from the ID to seal. rubber changes over time, due to the elements and exposure. Elongation Break - Is the % of stretching that the product breaks at. Some sealants have been designed to stretch more than others.

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