White Paste Sikaflex 221 Polyurethane Sealant, For Glass, Grade Standard: Industrial Grade

Sikaflex®-221 is a high-quality multipurpose non-sag 1-c polyurethanesealant that cures on exposure toatmospheric humidity to form adurable elastomer.For US: meets approvals ASTMC920 types and FederalSpecifications TT-S-00230C.Sikaflex®-221 is manufactured inaccordance with ISO 9001/14001,quality assurance system and withthe responsible care program.Product Benefits- 1-C formulation- Elastic- Low odour- Resistant to ageing andweathering exposure- Non-corrosive- Can be over-painted- Can be sanded- Bonds well to a wide variety ofsubstrates- NSF-approved for incidental foodcontact.Areas of ApplicationSikaflex®-221 bonds well to a widevariety of substrates and is suitablefor making permanent elastic sealsof high adhesive strength.Suitable substrate materials aretimber, metals, metal primers andpaint coatings (2-c systems),ceramic materials and plastics.Seek manufacturer’s advice beforeusing on transparent andpigmented materials that are proneto stress cracking.This product is suitable forprofessional experienced usersonly. Tests with actual substratesand conditions have to beperformed to ensure adhesion andmaterial compatibility.