Scott Dunsworth Posted March 1, 2004 Posted March 1, 2004 Have any of you used Systemthree's two part polyurethane? (WR-LPU ) It says it is a two part linear polyurethane coating. With the primer and paint I can paint the hull for about $140. Compare that to Al grip which is very pricey. By the time I get the primer the thinner for brushing, Al grip comes in at a little over $300!!!! That was from west marine. Scott Quote
Guest Posted March 1, 2004 Posted March 1, 2004 Look around the internet for it. Keep in mind that shipping will be a flat rate and have a hazmat charge with it for shipping of any of the two part paints. But it can be bought cheaper that that. But also look into Sterling paints. This is by far the best poly paints for novice and the occasional painter, completely brushable if desired with a nice "Urethaner" Brush brand. http://www.boatingnews.com/paints.htm Quote
Gordy Hill Posted March 1, 2004 Posted March 1, 2004 Sherwin Williams has a two part industrial paint for floors and such. By having my friend order it wholesale it cost about $50 or $60 to paint my boat. I rolled it on with a friend immediatelyfeathering it with a foam brush. I got a very good, but not great finish. You might put on a few coats and sand it for a base coat for a more expensive finish. I think it could be sprayed on for a great finish. I later considered mixing graphite in it. Then sand and polish it till the boat looks like it's made of carbon fiber. Then my friend offered to paint it for free with Imron.... Quote
Frank Hagan Posted March 1, 2004 Posted March 1, 2004 The only reports I've heard about System Three's paints have been negative. They advertise is as a "water reducable" paint, that is two part in that they have a "cross-linker" additive. I think this cross-linker is a small amount, rather than a 2:1 or 1:1 mixture like other 2 part paints. I suspect it is a waterbased polyurethane or latex paint and their cross-linker is MEK or something similar. MEK has often been touted as an additive to latex paint to "make it harder", although I have no idea if it works well or not. The reason I suspect that the System Three paint is a water based latex is that they warn you will not get a glossy finish out of it. Interthane or the other true two part polyurethane paints will do a much better job, but can only be put on with the "roller and tip" method if you are not a professional. Quote
Designer Posted March 1, 2004 Posted March 1, 2004 Scott, I wouldn't touch it with a barge pole. I played around with it when it first came out. It did not work as well as other good LPU's, there was very little gloss and it did not seem to hold up very well. My neighbor painted his 29 footer with it, it did not look great when it was finished and after a few years it looked awful. There is a clear coat that can be put over it but the test panels that I made discouraged me from going any further. Quote
Scott Dufour Posted March 1, 2004 Posted March 1, 2004 Thanks Scott for asking the question, and thanks to the rest of you for your replies. I was literally going to order some of it today. I'll rethink it for a while. Quote
PJPiercey Posted March 3, 2004 Posted March 3, 2004 I've used it and I like it. No toxic fumes. Water clean up. It is a true linear polyurethane. There is a clear coat you can apply if you want the wet look, otherwise it is a satin finish. Durability is relative to the application. A minimum thickness of paint application is necessary for years of durability. Before I bought and used it after I visited a boat that has seen years of service and hundreds of "guests" shoes at boat shows. http://amateurboatbuilding.com/ProjectJustRight/index.htm#TOC Paul Piercey Quote
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