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Product Details

Isophthalic White and Neutral Gelcoats create a durable, shiny finish, and are available with & without wax additive.

Gelcoat with wax makes the final gelcoat layer cure to a hard sandable finish, with no wax paper or special tools needed.

Gelcoat without wax additive is ideal if you're laying up a mold for a new boat or a fiberglass part where you're laying down the gelcoat first, then applying more layers of resin and fiberglass on top. In this case, you don't want the gelcoat to cure completely.

Neutral gelcoat is better with coloring agents. White is more opaque with coloring agents.

MEKP is included as the catalyst. To thin, use styrene (sold separately).

Available in Quart and Gallon Kits. Wax additive also available for use with gelcoat without wax.

Tech Specs
Amount of Gelcoat w/o Wax Wax Additive Required
1 ounce20 drops
1 pint (16 oz.)1/4 ounce
1 quart (32 oz.)1/2 ounce to 1 ounce
1 gallon4 ounces
Info & Guides

BONUS! Each Quart and Gallon size Kit order includes:

  • 1 Qt. size plastic mixing pot
  • 1 10" wooden stir stick

The gelcoat you are buying is an Isophthalic NPG gelcoat with or without wax additive.

The gelcoat without wax is used for layups when you want the initial layer of gelcoat to remain tacky to the touch while you're laying reinforcement plies on top in order to create a strong chemical bond in the laminate. If you use unwaxed gelcoat as the finish coating, you must spray PVA (polyvinyl alcohol) over it or use wax paper or some other means to effect a proper cure.

The gelcoat with wax is used for an air dry post-applied application. The wax additive rises to the surface, making a film that creates an air barrier, allowing the final gelcoat layer to cure properly.


IMPORTANT - Do not Apply Gelcoat Directly on TotalFair:

Gelcoat should not be applied directly over TotalBoat TotalFair epoxy fairing compound or the gelcoat will not cure properly. Instead, apply TotalBoat 2-Part Epoxy Primer or TotalBoat TotalProtect Epoxy Barrier Coat Primer over TotalFair, before applying Gelcoat. Primers are sold separately.

MIXING DIRECTIONSs: NOTE: The higher the percentage of catalyst, the faster the gelcoat will dry. Air and surface temperature will also affect the drying of the gelcoat. The colder the air temperature, the higher the percentage of catalyst you should use.

TotalBoat Gelcoat requires MEKP (methyl ethyl ketone peroxide) catalyst to cure. As with all polyester resin, rate and degree of cure are a function of catalyst concentration and of temperature. Resin 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. The amount of catalyst may be adjusted in small, incremental amounts, either upward or downward, to account for temperature differences (more for cooler temperatures, and less for warmer temperatures). The acceptable amount of MEKP is 1-3%. Do not use more or less catalyst than this or you may get an improper cure, with laminates exhibiting moderate to severe post cure after demolding. Once cured, the gelcoat can be dewaxed, wet sanded, and buffed.

Tip
If using a wooden mixing stick, place the stick in the resin before adding catalyst so the wood doesn't absorb the catalyst.

Directions for Wax Additive (sold separately)

Wax additive is a mixture of paraffin and styrene. When adding it to gelcoat, you must also add the MEKP catalyst. Wax additive is added to the gelcoat on the final layer of a wet layup to create a tack-free surface that sands easily before applying the finish coating. Wax additive is not needed when additional layers or gelcoat are applied on top. Add 4 oz. of Surface Seal Wax Additive per gallon (20 drops per ounce) of TotalBoat Gelcoat Without Wax. Note that in temperatures below 70°F, the paraffin can solidify in the container. Place the container in the sun or in front of a lamp to liquefy. USE CAUTION - WAX ADDITIVE IS FLAMMABLE!

Wax additive is available in a 4 oz. bottle. Refer to the table below for how much wax additive to add to gelcoat without wax. Too much wax additive will result in fish eye and other undesirable results.

WARNING: This product can expose you to chemicals including styrene, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

DANGER! Flammable liquid and vapor. Causes skin irritation. Causes serious eye irritation. Harmful if inhaled. May cause respiratory irritation. Causes damage to organs through prolonged or repeated exposure if inhaled. May be fatal if swallowed and enters airways. Wear protective gloves, protective clothing, eye protection, and face protection. Wash with water thoroughly after handling. Use only outdoors or in a well-ventilated area.

Reviews for TotalBoat White and Neutral Gelcoats

10 of 55 Reviews

September 19, 2021

IT WORKS
By hobie 16 from Houston TX

Verified Purchase

gets super hard fast

Bottom Line Yes, I would recommend to a friend

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July 14, 2021

Easy to work with
By Guiseppe from Center Harbor. nH

Verified Purchase

I dented my swim platform and after filling and fairing it was time for Gelcoat. This product sticks and stays to an almost vertical surface. Dries hard and sands with wet dry sandpaper to a smooth finish. Matching the color is the hardest part.

Bottom Line Yes, I would recommend to a friend

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July 3, 2021

Again this was my first fiberglass job. It turned out fine
By Louie from Summit Ms

Verified Purchase

My only regret was ordering paint with the wax mixed in the paint. The first coat didn't go on thick enough. Because the paint had wax in it I had to sand it with 80 grade, de wax and paint again. It all turned out well in the end. I could have saved time by using untaxed for the first coat and added wax in for the second.

Bottom Line Yes, I would recommend to a friend

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June 16, 2021

Perfect
By Marc from Atlanta Ga

Verified Purchase

It was perfect

Bottom Line Yes, I would recommend to a friend

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June 15, 2021

would buy again
By sonny from garner iowa

Verified Purchase

great product

Bottom Line Yes, I would recommend to a friend

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May 11, 2021

Worked great with thickener for nonskid
By Greg T from Nashville, TN

Verified Purchase

I used it in the bottom of a bathtub that had worn areas and it worked great. I thickened it with silica powder and used a short nap roller. Masking neatly and removing the masking tape while still wet is important. I had to add some color to match. I have used this on boat decks before.

Bottom Line Yes, I would recommend to a friend

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May 4, 2021

Easy to use
By Gary from Kentucky

Verified Purchase

I used the white Gelcoat to cover some exposed fiberglass. The Gelcoat went on easy with a foam roller and a brush. I feel the results were smother with a brush but both required a little sanding to make fully smooth. Over all great product, easy to use, and great results.

Bottom Line Yes, I would recommend to a friend

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April 26, 2021

Great product
By Rick from Mass

Verified Purchase

The product went on very easily. It was quite thin so I don't know how it work on a vertical surface. My surface was horizontal.


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April 18, 2021

Nice product and nice servce
By Oscar from Palm Beach

Verified Purchase

Thanks total boat

Bottom Line Yes, I would recommend to a friend

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March 14, 2021

I plan on using this product again on the Hobie trailer.
By Gazoo from Denver Co.

Verified Purchase

Used it on the hull of the Hobie and would use it again on any project that needed water proofed or strengthen .

Flying on the water.
Bottom Line Yes, I would recommend to a friend

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