You might review the literature on the West System site: http://www.westsystem.com/ Go to "Boat Repair and Restoration" and look for the link for "Polyester over epoxy". Generally not compatible and not a good idea. Better to sand, prime and paint repairs over epoxy. I've done gelcoat over epoxy on interior locations where the finish could be left rough, and it's held up. But paint would have worked just as well. In fact, it did. To get the match right, figure on painting the entire transom. Breaking it at the corners will look better if the paint isn't a perfect match. Lastly, be advised that oil based paints (things like Brightside....an alkyd even if it says polyester on the label....look at the ingredients) are not compatible with epoxy either. Better to use two part LPU paints for long term repairs. More expensive, but in the long run, worth it. And DO NOT try to spray LPU's. Roll and tip. 2 or 3 coats. System 3 does make a water based LP paint that I'm currently trying. It's claim to fame...aside from being a LP paint, is it can be sprayed wet on wet...2 or 3 coats without sanding. It looks to be pretty tough. I've had a test chip outside for a year now and it looks the same as when it went out. Howard On Oct 29, 2006, at 12:10 PM, Robbin Roddewig wrote:
Hi all, I have been working on some large patches (6"x 12") on both sides of the stern of my M-17 that I am trying to have ready for sailing over Thanksgiving. I had some blisters that had cracked that were there from shrink wrap holding water in. I ground down the gel coat, and sealed with west system epoxy. I tried one application of Evercoat gelcoat paste tinted white but it came out blue. The jar of paste is old and I guess it turned. No matter how much tint I put in, blue blue blue. Ground off the blue and tried a fresh batch of Evercoat. The color is okay but the finish is very uneven, even after sanding. Most trouble some, the new coat is not hiding the black hull underneath. I looked online for advice and found some gel coat mix and small sprayers. I am about to try this route and hope 5-6 coats covers. Any advice?
Thanks Robbin M-17 hull #601, Miss Take
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