Silverhook Ultra Tough Metal Filler is a polyester filler that offers easy application and excellent sanding properties. It is a two component putty for application on surfaces that are subject to vibrations and frequent temperature changes. 

It has excellent thermal conductivity due to aluminium particles within the product and can grip to steel, aluminium and zinc. 

This Metal Filler can also be used as a general purpose filler on concrete, brick, and wood. As the filler is corrosion resistant, it makes a perfect exterior filler on areas requiring a smooth paint finish.