TUPS 303T Silane Modified Polyether Polymer TUPS 303T is a medium modulus silane modified polyether polymer engineered for industrial and construction bonding, elastic sealing, and hybrid adhesive formulations. Developed by Risun, this polymer delivers a balanced combination of adhesion strength, elasticity, curing efficiency, and environmental performance. Product Features Moderate activity with low modulus characteristics Solvent-free formulation with very low odor during