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.
Resistant to ageing and weathering exposure
Can be over-painted
Can be sanded
Bonds well to a wide variety of substrates
NSF-approved for incidental food contact.
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, ceramic materials and plastics.