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GacoFlex H-25 Hypalon® is a lead free, air curing, liquid coating. It is designed to yield an elastomeric film of good wear, weather resistance and durability that will resist most chemical environments.
This Hypalon® coating is used as weathering top coat over various primers and elastomeric base coats, including neoprene and polyurethane. Typical uses include roofing over concrete, plywood.
Moderately bodied, suitable for roller, brush or spray application.
Excellent salt and acid resistance, good alkali and solvent resistance
These values determined using H-2500 White. Other colors may vary.
ASTM D-471 4.0% max
UL 790 - Composite films consisting of 12 to 13 mils (0.3 mm) GacoFlex N-1400 series neoprene covered with 6 to 7 mils (0.18 mm) GacoFlex H-25 series Hypalon meets Class A requirements of UL 790 on non-combustible substrates and Class C requirements on plywood roofs of 3/8" (1 cm) thickness. See UL listing for full information.
400 square feet per gallon 1 mil dry film thickness (9.82 m² / L / .025 mm).
Contains xylene. The product label includes handling instructions.
Has excellent adhesion to plywood, concrete, GacoFlex E-53 series primers, and all GacoFlex elastomers except LM-60H/V.
One year from date of manufacture in sealed containers when stored below 80°F (27°C).
Gaco Western's T-5125 Thinner.
Optimum coating time over neoprene is one to two days, and over Hypalon® is 8 to 24 hours. If longer interval passes, coated surface must be cleaned and dried before work proceeds.
May be brushed or roller coated at package consistency. Up to 10% thinning is permissible for cold weather application. During cool, damp weather, the tendency to sag is increased and additional thinner coats may be required to achieve the specified coverage. Cure can be accelerated to achieve full cure at 75°F (24°C).
H-25 series as received can normally be applied by airless spray or internal mix conventional spray equipment. In either case, thinning up to 25% may be required, depending on equipment and temperature. See general instructions for spray equipment recommendations. Refer to Gaco Western, Inc. General Instructions SG-H for spraying instructions.