Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
To me, 'barrier coat' means a coating intended to be seriously impermable in
continuous immersion and an effective barrier against osmotic blistering. I don't think that there's disagreement that 404/414 is an OK primer under LPU paints for topsides and intermittent immersion. One thing it's not is impermeable. It's so loaded with solvents that it's quite porous. The best guide is the pamphlets published by the paint manufacturers. In them, they do a pretty good job of descrtibing the 'systems' of coatings, from bottom to top. They're not ambiguous. "Brian D" wrote in message ... 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 "Robert or Karen Swarts" wrote in message ... Thank you all for your comments. For the record, I ended up thinning it about 20% with alcohol. This worked well as far as thinning is concerned, but the alcohol apparently evaporates too fast. It is impossible for the brush strokes to flow out well. So -- more sanding. The good news is that it finds, and with persistence, fills -- or at least coats -- about every pin hole in the resin base. It dries quickly and appears to sand well. I am actually using it as a primer under Interprotect 2000 BTW. This is the second time I have purchased Interlux products which have been described as applicable to things I later found out they were not truly suitable for. BS "Robert or Karen Swarts" wrote in message ... Just for the record, Jim, the can is labeled Epoxy Barrier-Kote. And the catalog describes is as suitable for above or below water applications. The directions also state that it must be thinned. Thanks for your thoughts. BS "Jim Conlin" wrote in message ... Interlux 404/414 is not a barrier coat. It's a sandable primer whose function is to provide a tie coat between sime substrate and an impervious finish coat such as an LPU paint. If applied as directed, it's just loaded with expensive solvents and is consequently pretty porous. Useless under bottom paint. If you are using it as a primer under finish paint and not under bottom paint, go for it. I'd try acetone. Let us know your result. "Robert or Karen Swarts" wrote in message ... Can I successfully use acetone to thin epoxy barrier coats? I am thinking of Interlux 404/414 in particular, but the question is also a general one. I am aware that there are proprietary products for this application, but I need to paint tomorrow morning, and the nearest dealer is about 60 miles away. Bob Swarts |
#2
|
|||
|
|||
I guess the word 'epoxy' in the name can be taken to mean that it *is* epoxy
and is therefore waterproof (albeit not always true either) and works as a barrier to water ...and it can be taken to mean that it provides a barrier to the epoxy itself so that certain paint (or other primer) chemistries will work on the boat. I always took it the second way, but that's probably because I never keep a boat in the water ...I'm a trailer sailor and can't afford the upkeep and annual hauling in/out fees that go along with keeping a boat in the water. At least not yet ...grinz. Brian "Jim Conlin" wrote in message ... To me, 'barrier coat' means a coating intended to be seriously impermable in continuous immersion and an effective barrier against osmotic blistering. I don't think that there's disagreement that 404/414 is an OK primer under LPU paints for topsides and intermittent immersion. One thing it's not is impermeable. It's so loaded with solvents that it's quite porous. The best guide is the pamphlets published by the paint manufacturers. In them, they do a pretty good job of descrtibing the 'systems' of coatings, from bottom to top. They're not ambiguous. "Brian D" wrote in message ... 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 "Robert or Karen Swarts" wrote in message ... Thank you all for your comments. For the record, I ended up thinning it about 20% with alcohol. This worked well as far as thinning is concerned, but the alcohol apparently evaporates too fast. It is impossible for the brush strokes to flow out well. So -- more sanding. The good news is that it finds, and with persistence, fills -- or at least coats -- about every pin hole in the resin base. It dries quickly and appears to sand well. I am actually using it as a primer under Interprotect 2000 BTW. This is the second time I have purchased Interlux products which have been described as applicable to things I later found out they were not truly suitable for. BS "Robert or Karen Swarts" wrote in message ... Just for the record, Jim, the can is labeled Epoxy Barrier-Kote. And the catalog describes is as suitable for above or below water applications. The directions also state that it must be thinned. Thanks for your thoughts. BS "Jim Conlin" wrote in message ... Interlux 404/414 is not a barrier coat. It's a sandable primer whose function is to provide a tie coat between sime substrate and an impervious finish coat such as an LPU paint. If applied as directed, it's just loaded with expensive solvents and is consequently pretty porous. Useless under bottom paint. If you are using it as a primer under finish paint and not under bottom paint, go for it. I'd try acetone. Let us know your result. "Robert or Karen Swarts" wrote in message ... Can I successfully use acetone to thin epoxy barrier coats? I am thinking of Interlux 404/414 in particular, but the question is also a general one. I am aware that there are proprietary products for this application, but I need to paint tomorrow morning, and the nearest dealer is about 60 miles away. Bob Swarts |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Epoxy over Gel coat troubles | Boat Building | |||
Epoxy Barrier Coat Question | General | |||
Gel Coat , Clear Coat or 2 Part Epoxy??? | General | |||
How do I fix A dirty big star crack. | UK Paddle | |||
Barrier coat life expectancy | Cruising |