Sikaflex®-221 is a high-quality multi-purpose non-sag one-part polyurethane sealant that cures on exposure to atmospheric moisture 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 metals, metal primers and paint coatings (two-part systems), ceramic materials and plastics.

Perfect to bond bodyparts etc.