WACKER CHEMIE AG -  GENIOSIL® XB is a range of alpha-silane-terminated polyethers of low viscosity and with a high density of crosslinkable silyl groups that produce a close-meshed, three-dimensional network on curing. Depending on the formulation, hardnesses are in the high Shore-D range. Their low viscosity makes the hybrid polymers easy to handle and process; they can be formulated without using plasticizers or solvents. The technology also allows for tin-free formulations that eliminate incompatibilities with ester-based additives. Visitwww.wacker.com.