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KeeneSeal™ 300 is a one-part, low-VOC hybrid polymer sealant for exterior penetrations and flashing details. It cures with moisture into a durable, UV-stable, weather-resistant seal and will not sag on vertical or overhead joints.
Free of solvents and isocyanates; low odor; minimal shrinkage
Service temperature -40°F to 200°F
Bonds to housewrap, windows and doors, plywood, OSB, concrete, masonry, metal and exterior gypsum
White; 10.3 fl oz cartridge (24 per case) or 20 fl oz sausage (16 per case)
KeeneSeal™ 300 is a one-part, low-VOC hybrid polymer sealant for exterior penetrations and flashing details. It cures with moisture into a durable, UV-stable, weather-resistant seal and will not sag on vertical or overhead joints.
Free of solvents and isocyanates; low odor; minimal shrinkage
Service temperature -40°F to 200°F
Bonds to housewrap, windows and doors, plywood, OSB, concrete, masonry, metal and exterior gypsum
White; 10.3 fl oz cartridge (24 per case) or 20 fl oz sausage (16 per case)
