24-pack of Sika Sikaflex-221 white polyurethane sealant for industrial and heavy-duty repair applications, each 300ml cartridge offers superior flexibility, adhesion, and weather resistance.

Description

Sikaflex -221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types Sikaflex -221 is tested and classified in accordance with ANSI/UL 723 Test for Surface Burning Characteristics of Building Materials

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