"Sikaflex 221 has been tried and tested for years and is stable 1-component polyurethane sealant that cures with humidity to form an elastomer.
Multifunctional adhesive and sealant with a broad adhesive spectrum: Sikaflex®-221 is a versatile single-component polyurethane adhesive and sealant for a variety of substrates such as metals, primers and coatings (two-component systems), ceramic materials and plastics.
Sikaflex®-221 is suitable for producing permanently elastic joints.
Product features:1-componentElasticLow odourAgeing resistantNot corrosiveCan be painted overCan be sandedBoasts a wide adhesive spectrumFood grade approved (NSF+Ordinance on Consumer Goods 2002/72/EC)"