Silverhook Epoxy Pro Filler is a polyester and epoxy filler that offers easy application and excellent sanding properties even after leaving overnight. It is a two component putty for application on large surfaces and is characterised by its high elasticity and excellent gripping ability to galvanized steel and aluminium. It can also be used as a general purpose filler on wood and rigid plastics. As the filler is corrosion resistant, it makes a perfect exterior filler on areas requiring a paint finish e.g. window frames, walls, etc.