the activation process has to be repeated (once only)

The 4100C is used for bonding glass

SAFT Heat Tested 100˚C

thereby eliminating the risk of incorrect mixing by human error

The product features a convenient 1:1 mix ratio

Sikaflex 221 White Polyurethane Sealant 300ml (Box of 12) Bondloc the activation process has toThe Sikaflex 221 is a high quality multipurpose single component polyurethane adhesive sealant that cures on exposure to atmospheric humidity. It is suitable for internal sealing and simple bonding applications. It 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 (2 C systems), ceramic materials and