X-Press It PowerTac is a professional grade, extra strong, water based adhesive designed for demanding applications in crafting, framing and model building.It is an non toxic extra strong glue suitable for use on wood, MDF, polystyrene, paper, metal, fabric & most plastic surfaces. Perfect for picture framers to strengthen mitred corners. Great for building models with foamboard. Ideal for difficult applications where a strong bond is desired. · Waterbased · Fast inital bond · Dries clear · Polystyrene compatible · Balance of flexibility & rigidity · Available in 125ml, 250ml and 500ml