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Interlux Epoxy Barrier Kote 404/414 doesn't have any epoxy in it ...that's
the reason for this whole thread. It's a confusing label. It means that it is a barrier to the epoxy on the boat so you can paint with the paint of your choice without worrying about interaction with epoxy amines that didn't get used in the epoxy cure reaction. The primer itself is not epoxy and doesn't contain any ...just a bunch of high body stuff and stinky solvents. It works quite well under a paint, both as something to protect the paint from the epoxy AND as a defect-hiding high-build paint primer that sands and finishes quite well. Brian D "Paul Oman" wrote in message k.net... Brian D wrote: I'm curious ...I gave away my last bit of 404/414 so don't have a label to read, but who's description was misleading? Interlux's? Or was the description ambiguous instead? You know ...poorly written and could apply equally well to more than one (conflicting) type of use? Have you called the rep and told him about your experiences? Might save some newbies headaches later on if the labels were clearer... Most companies won't want you to be unhappy because a product was used for the wrong type of application. Brian Hello All - adding solvents to epoxy will decrease its physical properties but for a hull coating that is OK. Epoxies are one of the very few coatings suitable for constant immersion. Unlike polyester resin, which will let water pass (hence boat blisters) epoxies provide a waterproof seal - plain and simple. epoxy primers, bond enhancers etc. are generally just solvent thinned epoxy. Epoxies are a common primer under many other coatings. You can use straight solvent free marine epoxies as a prime. Note that you certainly would want to worry about amine blush with some epoxies, especially if you are using them as a primer.... Awlgrip is a polyester polyurethane. Polyurethene's weakest property is its bonding, hence usually used under a fresh coat of epoxy. Polyurethanes are never recommended for immersion service, although I wonder (and will soon be testing) 2 part polys bonded chemically with uncured epoxy and put into immersion service. It may work, albeit no one will officially so state. PAUL OMAN Progressive Epoxy Polymers, Inc. |
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