CELEBRATING 80 YEARS: 1944-2024
SIKAFLEX 291 LONG-OPEN-TIME SEALANTS

SIKAFLEX 291 LONG-OPEN-TIME SEALANTS

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Sika-Flex 291 LOT Marine Sealant-Adhesive is a non-sag, 1-component polyurethane sealant specifically designed for marine applications. This multipurpose sealant is designed to have a long open time for those jobs that require more time. This formula can be sanded and over painted, and can be used either above or below the water line. Not to be used to seal plastics that are prone to stress cracking. This product is suitable for experienced professional users only.

Features (Click to expand):
  • Durometer/Hardness: 40 to 45A
  • Tack free time: 3 to 5 hours
  • Skin time: 4 Hours
  • Elongation at break (ASTM D412): 550%
  • Tensile strength (ASTM D412): 190 PSI
  • Shore A hardness (CQP023-1 / ISO 48-4): 45
  • Service temperature (CQP513-1): -41°F to +104°F
  • Moisture curing

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SIKAFLEX 291 LONG-OPEN-TIME SEALANT - BLACK 3-oz TUBE
$14.00
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SIKAFLEX 291 LONG-OPEN-TIME SEALANT - BLACK 3-oz TUBE
$14.50