![]() In cooler temperatures (60 F) increase MEKP Catalyst up to 3%. Gelcoat may not thoroughly cure if applied in temperatures below 60 F. In warmer temperatures (90 F) reduce MEKP Catalyst (not less than 1.2%). Gel Coat will begin to gel in approximately 10-17 minutes at 77 F. The CC’s and OZ’s values in the chart have been converted from weight of MEKP to volumes of MEKP. ![]() The percentages in the chart: 1% thru 2% are percentages of gelcoat by weight. In Critical applications MEKP should be measure by using CC’s or Fluid Ounces which are volume measurements. NOTE: Using drops for catalyst is only an estimate. 30 Drops is approximately equal to one CC (Cubic Centimeter) The weight of MEKP is 1/125 grams per CC. Do not use more than 1 oz tint per quart. Tinting: Gel coat may be tinted using Pigments designed for use in resins and gel coats. If not using Patch Booster then you may add up to 4oz of Wax Additive per gallon for tack free surface on final coat. Patch Booster already contains a wax additive. Wax Additive: Do not add wax additive if using Patch Booster. Alternative Added: Duratec High Gloss Additive Patch Booster Add 25-33% Patch Booster when applying gelcoat for small repairs, to improve the working properties of traditional gelcoat spray patches. Prewash roller cover to remove loose fibers prior to use. (For smaller repairs /applications only) Solvent Resistant Roller Cover 3/16" pile (nap), smooth to medium. Use ES Manufacturing Gelcoat Spray Gun G830, ES-G100, or equivalent.īrush/Rolling: Spraying recommended. Spray: Airless or Conventional: 2.0-2.5 orifice tip. Gelcoat delivery rate of no more than 2.5 pounds per minute with conventional air atomized spray, and no more than 4 pounds per minute with airless equipment. Do not apply directly over paint.īest when applied by spray. Add any additives such as Patch Booster or Duratec High Gloss Additive or Pigments (tints) prior to catalyzing with MEKP Catalyzer.Īll surfaces must be clean, dry and free from grease, wax, oil, and other foreign matter. Be careful not to whip air into the Gelcoat. Gelcoat must be stirred/agitated, preferably with use of a mechanical agitator. ![]() Used to fill gouges, chips, scrapes and deep scratches in fiberglass gel coat finishes. For smaller jobs, add a wax additive as a sanding aid to make a resilient, isophthalic polyester coating that does not require PVA or other air-inhibitors to cure to a hard surface. Gel Coat has great cosmetic and protective life expectancy and will keep the surface shining like new for years. Applied in a thickness of 16-20 mils, which gives it depth to survive considerable water sanding, compounding and repolishing.
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