Description
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.
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 and Advantages:
- 1-C formulation
- Elastic
- Low odor
- Resistant to aging and weathering exposure
- Non-corrosive
- Can be overpainted
- Can be sanded