Soudal T-Rex Crystal 125ml 132603T Rex Crystal is a high quality, crystal clear, neutral, elastic, single component sealant adhesive based on SMX Polymer. Features & Benefits Crystal clear formulation Excellent adhesion on nearly all surfaces, even if slightly moist Very good mechanical characteristics Impervious to mould, contains ZnP (biocide with fungicidal action) Suitable for sanitary applications Ecological advantages free of isocyanates, solvents, halogens and acids Minimal