Sika 90892 Sikaflex 221 Polyurethane Sealant Adhesive 10.3 oz Aluminum Gray

Sikaflex 221 (Sika 90892) is a multi-purpose polyurethane sealant and adhesive in aluminum gray. It comes in a 10.3 oz (300 ml) cartridge. It makes a permanently elastic bond between materials that have dissimilar coefficients of expansion.

Key Features:

• One-component, non-sag polyurethane that cures on exposure to atmospheric humidity to form a durable elastomer
• Waterproofs and seals joints, seams, doors and windows
• Cures rapidly, is odorless and non-staining
• Bonds to a wide variety of substrates, including wood, metals, metal primers, paint coatings (2-component systems), ceramic materials and plastics
• Tested and classified under ANSI/UL 723 for surface burning characteristics of building materials

A cartridge of Sikaflex 221 is a practical choice for sealing and bonding jobs that need a strong, flexible joint.