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Sika Sikaflex® 221 Multi-Purpose Polyurethane Sealant-Adhesive - 10.3oz(300ml) Cartridge - Black

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Sikaflex® 221 Multi-Purpose Polyurethane Sealant/Adhesive - 10.3oz(300ml) Cartridge - Black

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 ÔÇťTest for Surface Burning Characteristics of Building MaterialsÔÇŁ.


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.

Characteristics & 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)

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

Manufacturer :Sika
Manufacturer Part No :90893
UPC :033886005111