LOCTITE UR 7221

1-part polyurethane adhesive that hardens by humidity or spraying with a fine water mist. Good relationship between open time and press time. LOCTITE® UR 7221 is a 1-part, solvent-free, moisture-cured polyurethane-based adhesive. At room temperature and the required humidity in the joint, sufficient strength will be obtained after approximately 2 to 4 h. For faster curing LOCTITE UR 7221 can be cured in a heated press. Maximum temperature must not exceed +70°C. Used in the manufacture of sandwich elements of porous substrates which contain humidity.

• Long open time
• Foaming
• IMO approval for shipbuilding (wheel mark, low flame spread)
• Solvent-free

Viscosity, Brookfield - RVT, Henkel method 10 @ 20.0 °C

5500.0 - 10500.0 mPa·s (cP)