Product Data Sheet Safety Data Sheet Show all documents

Sikaflex®-221

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”.

  • Highly elastic and durable
  • Resistant to aging and weathering exposure
  • Non-corrosive
  • Can be sanded and overpainted
  • NSF registered, Proprietary Substances and Nonfood Compounds (black, gray, and white)
  • UL listed for potable water (black, gray, and white)
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikaflex®-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength. Suitable substrate materials are wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics.

Advantages

  • Highly elastic and durable
  • Resistant to aging and weathering exposure
  • Non-corrosive
  • Can be sanded and overpainted
  • NSF registered, Proprietary Substances and Nonfood Compounds (black, gray, and white)
  • UL listed for potable water (black, gray, and white)

Packaging

300 ml cartridge, 300 ml unipac, 600 ml unipac, 4.5 gal pail, 50 gal drum

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