Use on hard or soft woods such as balsa and basswood. Great for model building and for use on foam plastics (Styrofoam®). Will not dissolve surface. Weldbond is extensively used in the stain glass & mosaics industry and offers the cleanest, easiest method to adhere almost any kind of tile. Weldbond is a high solid formulation that can be reduced with water for sealing porous areas or used as a primer prior to painting. Weldbond is a latex free, non-toxic, acid-free adhesive.