Can you gel coat over paint

Boat Design Net. Is Gel coat over old polyurethane paint even remotely possible. I probably know the answer to this, but I thought I'd ask some experts. About six years ago, I completely re-shot my sailboat with Petit Perfection polyurethane paint. I live in Texas, and the sun here is brutal. I am very disappointed in this boat finish. I have painted boats with cheap Dupont automotive paints that actually held up to the sun better than this stuff.

I am now wishing I had put the extra work in and gone with gel-coat. Any possibility that I can shoot new gel coat over this old paint if properly prepped, and scuffed? Any help appreciated. Welcome to the forum. Sorry, you have to grind off the paint and get back to good mat, reprep and. PAR , Nov 6, What's to stop you re-painting the topsides? If the paint is just faded or chalked, rather than lifting off, it should not be a huge job, but trying to go back to gel coat is nigh on impossible.

In any case, the gelcoat must have been weathered for you to paint it, who's to say it wouldn't be looking weathered again by now? Mr Efficiency , Nov 6, Use a high quality two part urethane paint and you will not need or want gel coat. Im confused, you say that the hull still looks brand new but the topsides have taken a beating, which is it? Buy and Sell Marketplace. Wildman's Garage! Scream And Fly Groups. Private Messages. Photo Albums.

Forum Settings. Team Membership. Official Facebook. Twitter Feed. Supporting Vendors. All times are GMT Once applied, you want to wait about an hour and a half, for the gelcoat to set. If you roll or brush your seconding coating, be sure to go the opposite direction from the previous coat, allowing a uniform coating.

If you are using our standard Exterior gelcoat, you will be ready to sand and buff your freshly gelcoated surface. To start sanding, begin with grit sandpaper and sand the surface completely. From then on, start going up to , then , and finally grit sandpaper.

At this point, you can use an grit compound to compound the gelcoat. The car polishers will not work, as they spin too slowly, so you want to check the spin speed.

If you want a beautiful, glossy shine, use a machine glaze and then two coats of wax, and you will have a beautiful finish that any professional would be envious of.

I am an architect designing and building geodesic moduled vehicles, but a novice with fiberglassing, so I am gonna need help. Good day! So, gelcoat is used as a sealing, asthetic coat. If you look at a pool, or even a boat, the gelcoat is the color you see.

We have two types of gelcoat; the brushable and the standard. You can get gelcoat with wax or without in certain cases. The wax, or Sanding Aid is an additive that allows the gelcoat to dry tack-free. With gelcoat, we recommend at least 2 coats. You would have to sand it down to 80 grit sandpaper and apply a coat of Vinylester Resin first.

At that point, you can apply the gelcoat to that to get a nice finish. Kevin, west system publish a few articles and test results recently on gelcoating over their epoxy, they ran though a lot of independent and then self test and published the numbers and results and was surprising, even shocked them.. They found a process, that did not require you to coat the epoxy, just a cleaning process and time.. I did my test gelcoat last evening.. Sanded down with 80, and finish with before blowing off dust and acetone.

I out mekp at just between 1. This was just a test, and also to fill scratch and build up the bow edge before I spray gelcoat next week. First time working with gelcoat. The gelcoat with no wax, brushable, added pigment, let sit for 18 hours..

I tried to just take the first layer off then switch to clean pad, still even middle is gunk.. I have a couple of questions to ask to better help you. What kind of gelcoat and color Did you use.