How Long Does It Take For Gelcoat To Cure?

Does bleach damage gelcoat?

Bleach – It’s tempting to use bleach to clean your boats tough stains, bilge, and other nasty areas.

The problem is that bleach is an extremely harsh chemical.

It will dull your gelcoat in only a few applications, cause paint to fade, change the color on your vinyl, and corrode your fittings..

Is gel coat porous?

As gelcoat ages, it becomes porous. The more porous it becomes, the more easily it stains, the worse it looks and the harder it is to clean. The good news is that almost all gelcoat can be restored, providing it is not completely worn through.

How much does gelcoat repair cost?

Cost of fiberglass and gelcoat repair can vary depending on the level of damage on the surface. The usual repair cost can vary from $75 to $110, per hour. This includes the material costs and labor charges as well.

How do you fix a sticky gel coat?

Re: How to cure non-waxed polyester gelcoat The surface is tacky because you didn’t exclude the air as it set. However, it should be solid underneath. The wax rises to the surface during the cure. Grind or sand the surface layer off and then apply either another coat with wax or paint it.

Can you gelcoat over old gelcoat?

First thing you want to do is look at the surface you want to apply gelcoat to. If the surface is already covered with gelcoat, or if the surface is a fiberglass, or polyester resin, then applying gelcoat will be a snap. If the surface is paint, then the paint would have to be removed before applying the gelcoat.

How thick can you apply gelcoat?

Gelcoat can be applied in coats up to 24mils. For applications under the waterline a thickness of 20-24 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.

How do you remove tacky gel coat?

Use a lint free wipe with 91% alcohol to wipe off the tacky layer on top of the gel polish. Don’t be afraid to wipe the nail, it’s dry. I especially love using disposable alcohol wipes for this step because it prevents cross contamination of the tacky layer from nail to nail.

How do I know if my gel coat is gone?

Look at the inside of the hull….the backside of the piece you are going to correct. This should tell you what is underneath the gel coat. In my Baja the fiberglass layer under the gel coat was black. If you start to see the color change while correcting, you are getting close.

Does gel coat go bad?

Yes, gelcoat goes bad and so does the hardener, MEKP. According to the gelcoat mfg’s, gelcoat usually has a shelf life of 90 to 120 days when sealed and kept in a cool, dark place.

How many drops of MEKP is 1 oz of gelcoat?

14-16 dropsResin and work area should be between 70°F and 95°F to ensure satisfactory results. At 77°F, TotalBoat Gelcoat requires the addition of 2% MEKP catalyst, by volume: 14-16 drops per ounce, or 2 teaspoons per pint, for a working time of 10-15 minutes.

How much wax do I add to gelcoat?

The recommended ratio is 1 oz wax to 1 quart of gelcoat. The first coat of gelcoat does not need the wax since you will apply a second coat. When mixing gelcoat for the second coat, though, don’t forget to add in the wax additive.

How many drops of hardener do I need for gelcoat?

Use 12 drops of hardener per ounce of resin; 11 cc of hardener per quart of resin or 40cc of hardener per gallon of resin.