Big Boy Metal Filler is a two-component putty for application on surfaces that are subject to vibrations and frequent temperature changes. It contains aluminium particles, providing excellent thermal conductivity and superior gripping ability to steel, aluminium, and zinc. This filler 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. The product is heat resistant and conductive, working on steel, zinc, and aluminium. Available in a 250ml tub.