Polynt POLYCOR® 21 X Series Gel Coat

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Polynt POLYCOR® 21 X Series Gel Coat
Categories:	Polymer; Thermoset
Material Notes:	21X series isophthalic gelcoats are high quality coatings developed for the fiberglass industry. These gelcoats provide quality finishes and deliver good water resistance, gloss retention and weathering. They are shock proof and can support moderated thermal variations. These gelcoats are formulated to meet the requirements of transportation,truck cabs, sanitary applications and boating. For parts with a prolonged contact with water, an NPG/ISO base gelcoat is recommended. 21X series gel coats are ready to use, sag resistant, fast curing and require only the addition of a proper amount of methyl ethyl ketone peroxide to cure. These gelcoats are available in a wide range of eye-appealing colors. Color matching is available on request. Information provided by Polynt Composites.
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Physical Properties	Original Value	Comments

Brookfield Viscosity	9000 - 15000 cP	RVF #4 Spindle @ 20 rpm

Thermal Properties	Original Value	Comments
Flash Point	82.0 - 88.0 °F

Processing Properties	Original Value	Comments
Cure Time	45.0 - 60.0 min @Temperature 25.0 °C	Lay-up Time; tested @ 1,8% Norox MEKP 925 @ 25°C
Gel Time	8.00 - 17.0 min @Temperature 25.0 °C	1,8% Norox MEKP 925 @ 25°C

Descriptive Properties
Sag Resistance	Good at 20 mils
Thixotropic Index	>4	2/20 rpm

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PPOLYN9257 / 231852

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