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BOOK 4, Chapter I
About Polyester Gel Coats
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MEKP Hardener. Industry Standard Polyester Catalyst.
Fiberglast-69 MEKP is required with all Polyester resin and gel coat, as well as the vinyl ester resin.
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Duratec Gray Surfacing Primer.
Perfect for Plug Finishing and Hiding Repairs Duratec Surfacing Primer is the best choice for coating your plug or reconditioning your mold. It can be thinned using Fast Lacquer Thinner to be sprayed through a Paasche, model VL or H, air brush minimizing costly sanding steps to remove surface imperfections such as sanding scratches, or pin holes. This surface primer can be applied as heavily as 45 mils to fill over repairs. This further hides the repair. The gray primer sands easily and is then wet sanded to a #600 mat finish before applying a final surface gel coat. Catalyze with 2% MEKP.
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Duratec Clear Hi-Gloss Gel Coat Additive.
Spray Gel Coat Like Paint. #1040 can be mixed 1:1 with regular gel coat to reduce viscosity, porosity, and permit a complete open air cure. The reduction in viscosity allows gel coat to be sprayed controllably through siphon and HVLP equipment, reducing sanding and polishing time. Below the waterline repairs still need the addition of #71 Styrene Wax for maximum hardness. Requires 2% MEKP.
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Clear Gel Coat Super High Gloss.
Fiberglast-173 is the highest quality gel coat. It is fully UV resistant so it may be used as a protective clear coat over other colors or glitter-flake. Very true color reproduction can be achieved when mixing with all our color pigments. Catalyze with: 2% MEKP.
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White Gel Coat. Industry Standard.
Fiberglast-72 is the industry production standard for molding applications. Use as a sandable base coat for painting or polish to a high luster finish. Can be tinted with our color pigments as needed, changing bold colors into pastels. Catalyze with: 2% MEKP.
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Tooling Gel Coat. Extend the Durability of Molds. Comes in Red or Black.
Fiberglast-78 is an abrasion resistant gel coat for making molds where gloss retention is paramount. The life of an otherwise good polyester mold may be extended considerably by the use of tooling gel coat. For best results, build the film thickness to 20-25 mils. Catalyze with: 2% MEKP.
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Styrene Thinner. General Purpose Reducer (Thinner).
Fiberglast-70 Styrene Monomer is the recommended and accepted thinner for polyester resins and gel coats. Most gel coats can be thinned 2-5% to make them suitable for heavy spray equipment or other special purposes.
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