MTN WEPRO Universal Filler 250g is a lightweight, versatile, and styrene-free two-component filler for sheet steel, aluminum, polyester, and wood. Its non-drip formula allows for both bonding and filling without sagging, while remaining easy to apply and sand. The filler does not crack or shrink upon drying and can be overpainted with any MTN product. It comes with a hardener (to be mixed at a 2% ratio) and a putty knife.