Product Data Sheet Show all documents

Sikaflex®-221

Sikaflex-221 is a high-quality multi purpose non-sag 1-c polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer. For US: Meets approvals ASTM C920 types and Federal Specifications TT-S- 00230C.

  • 1-C formulation
  • Elastic
  • Low odour
  • Resistant to ageing and weathering exposure
  • Non-corrosive
  • Can be overpainted
  • Can be sanded
  • Bonds well to a wide variety of substrates
Product 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 timber; metals, metal primers and paint coatings (2-c systems).

Advantages

  • 1-C formulation
  • Elastic
  • Low odour
  • Resistant to ageing and weathering exposure
  • Non-corrosive
  • Can be overpainted
  • Can be sanded
  • Bonds well to a wide variety of substrates

Packaging

Cartige 300 ml

Unipac 400 + 600 ml

Hobbock 23 l

Drum 195 l

Documents