Sikaflex®-221 RLT

Adhesive sealant for air-conditioning, ventilation and cleanroom systems

Sikaflex®-221 RLT is a 1-component polyurethane adhesive sealant that bonds well to a variety of substrates. It is especially designed to meet the requirements of air-conditioning, ventilation and cleanroom systems.  

  • Meets hygiene requirements for ventilation and air-conditioning systems and units according VDI 6022 Blatt 1:2018-01
  • Resistant to microorgansims growth according DIN EN ISO 846: 2019-08
  • Bonds well to a wide variety of substrates
  • Can be sanded and painted
  • Good ageing resistance
  • Silicone-free
  • Non-corrosive
  • Low odor