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Polyester Molding Resin
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Wax Free, General Purpose Resin
#77 Molding Resin is ideal for general purpose part fabrication and for building low cost molds. An internal thickening agent has been added to prevent drainage on vertical surfaces, yet it retains the low viscosity required for rapid wet out. This resin is wax free to reduce sanding between coats.
Formulated for 1.25% MEKP.
77/69-F kit contains (1) QUART RESIN, (1) 69-A.
77/69-A kit contains (1) GAL RESIN, (2) 69-A.
77/69-AK kit contains (4) GAL RESIN, (8) 69-A.
Choosing the Right Resin
Resin selection is based on fabric compatibility, service conditions, and the desired characteristics of the finished part. There are three common types ...
more.
Resin
Description
Item #
Price
Qty
Quart (2 lbs)
77-F
$27.95
Gallon (9 lbs)
77-A
$54.95
5 Gallon Pail (40 lbs)
77-B
$199.95
Quantity Discounts
4+
$194.95
10+
$189.95
Resin Kit
(with hardener)
Description
Item #
Price
Qty
Quart w/ hardener
77/69-F
$29.95
Gallon w/ hardener
77/69-A
$59.95
Case (4 Gallons w/ hardener)
77/69-AK
$219.95
Related Items
Styrene Thinner
General Purpose
#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.
Styrene Wax
Get a Complete Cure
# 71 Styrene Wax is a 5% solution of paraffin dissolved in styrene that may be added to non waxed polyester resins and gel coats to prevent the prolonged tackiness associated with thin sections of polyesters. If the resin contains paraffins, the wax will rise to the surface and protect the curing resin from the inhibiting action of the air. However, if the resin is allowed to fully cure, the paraffins on the surface will prevent adhesion of further coats of resin and must be sanded off prior to additional applications. We recommend adding #71 at 5% for thin coatings. Use with #1040 Hi-Gloss Additive when performing repairs below the water line.
MEKP Hardener
Industry Standard
#69 MEKP is required with all Polyester Resins, Gel Coats and Vinyl Ester Resin. It is required in different concentrations as defined for each resin product. Each resin product is available as a kit with the correct amount of hardener. However, hardener may be purchased individually as shown here.
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