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.
How much of the gel coat? And lastly, did you brush, roll, or spray the gelcoat? You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email.
Search Search for:. Share this: Twitter Facebook LinkedIn. Like this: Like Loading Thanks P. First time working with gelcoat The gelcoat with no wax, brushable, added pigment, let sit for 18 hours.. Afternoon, Was the sanding disk cleaned with water before use? I also suffered gunk on sanding disk. Spraying with Clear water?? Hi Carl, I have a couple of questions to ask to better help you. G'day David, If you are not a dab hand with a spay gun don't panic, as spraying is completed in under an hour so the cost to hire a good gun hand is minimal.
Preparation is the costly bit, you need to wash it, sand it, fill it, wash it, sand it and then perhaps do all of that again. When you think you have it about right you can apply your first coat of primer, this will show all the little bits you missed and any contamination left on the hull. Fix them, wash them, sand them and apply another coat of primer and check for pin holes and contamination.
By now it should be looking pretty smooth, so you can apply the final primer coat. Don't sand this till you are ready to paint the top coat, this ensures the surface is clean and fresh. Use a 2 pot polyurethane, look for one with long chain polymers like Internationals Interspray , very good self leveling qualities.
Notes: Use epoxy resin and microballoons to fill imperfections. A plastic ruler will bent to the hull shape when applying the epoxy and filler, this will reduce the sanding time and effort. Wash before sanding to remove resudue left by the curing process, a simple running hose and a green plastic scotchbiight pad is you need, rub till the water no longer forms beads, this only takes a couple of minutes.
Stay well up-wind when the spraying is in progress, this stuff is not good for you. Have you given any thought to epoxy coating below the water line? Lakesailor New member. You'll find that when you are sailing you can't see the topsides. When you are rowing out to your boat you are looking back to shore. So you've only got to get over the trip back to shore. Seriously, any dark colour would be better as dings wouldn't show through.
Black, green, blue. Why go for white? Anybody remember the days of wooden boats when you got your brush out every spring to touch up any gouges. Then every five to seven years you painted the whole boat. Then came fiberglass and suddenly it had to have a shine good enough to be able to shave in the reflection. I don't know the size or manufacturer or price compared to others of this type of this boat but that would have a bearing on which paint I would use.
It is too easy to spend a pounds for awlgrip with all the extras needed. Without doubt two part paints are the best available but I know many people who are sailing along happily with Brightside or Easypoxy and pocketing the pound savings. The problem with spraying, I assume outside is having someone on standbye for no wind no bugs etc. I'm with the 'keep it dark' fraternity.
Seen too many boats with white paint over dark gel to want to own one. But something like blue over brown should be fine - any scratches unlikely to show - and it would enhance the value. Go for it! I painted my Contessa 32 myself using Toplac one pack enamel. I had never painted a boat before, and I chose the small, rounded end, felt surfaced rollers much favoured by the Dutch.
Three coats were applied over three days in the winter I might add and the result? What is the best paint to use on fiberglass? A basic spray paint or latex-acrylic paint will do just fine on a decorative piece or a door. Polyurethane or epoxy paint are better suited to surfaces that will see a lot of heavy use, such as boats, bathtubs, and sinks. Polyurethane paint is ready to use. Can you paint a boat with automotive paint?
Yes, absolutly. I painted cars for a living for 20 years. I have painted several boats. To use automotive paint you need to sand the gelcoat , clean it several times with wax and grease remover, apply 2 coats of epoxy primer, if the gelcoat was smooth you can then paint over the wet primer with the urethane topcoat.
How thick can gelcoat be applied? Gelcoat can be applied in coats up to 24mils. For applications under the waterline a thickness of mils aids in blister prevention and is better than thinner layers. Thicker layers are more prone to cracking under stress. Styrene vapors will inhibit and slow the cure of gelcoat. Can you spray paint a fiberglass boat? Topside paint features an oil-based formula that can be applied above the waterline on metal and wood surfaces. Joined 26 Jul Messages The Gelcoat on my boat is very badly faded and also in some parts quite badly stained, wax and polishing seems not to work very well and is very temporary.
As the boat is in undercover storage i intend to paint the hull this year, can anyone advise me on the preperation work required for painting over gelcoat? Special primers, etc. And does anyone know a good hardwearing single pack paint, i was considering Toplac, but am open to suggestions! Evadne Active member. Toplac is good for about 5 years, and scruffy for the 5 years after that.
Preparation is everything, especially firing, abrading, cleaning and degreasing. Looks great in the first two years, after 5 it yellows along the waterline on our swinging mooring. You may fare better. I try and rub back and put on one or two new coats every years, depending on the accumulated wear, discolouration and damage. More expensive 2-packs like Awlgrip probably look better for longer, but gawd help you if you scratch it. We had our very scruffy gel-coat ground off and a new gel-coat applied.
Proper job and the boat looks very smart as a result. Thanks for the help, does anyone know the preperation you need to do to virgin gelcoat before applying? G'day Ceirwan, Are we talking deck, hull, or both? What is your location, nothing in your Bio? ValleyForge Member. Consult with paint makers literature? Simple to paint again too.
Oh, just to add - topsides - Don't. It won't last. Well worth the effort though, seeing the final result. Location is hull. Planning to paint the hull, and probably the parts of the dec that aren't non-slip.
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