Big Boy Ultra Tough Metal Filler is a two component putty for application on surfaces that are subject to vibrations and frequent temperature changes.

Big Boy Ultra Tough Metal Filler has excellent thermal conductivity due to Aluminium particles within the product and its gripping ability to Steel, Aluminium and Zinc. It offers easy application excellent sanding properties and can also be used as a general purpose filler on wood. As the filler is corrosion resistant it makes a perfect exterior filler on areas requiring a smooth paint finish.