KILLER FILLER is a pre-accelerated, lightweight, BPO cured, polyester rapid repair filler for abraded metal, GPR & wood which is exceptionally easy to sand and offers a pin-hole free finish. KILLER FILLER offers high viscosity, high thixotropy and cures quickly with the application BPO paste (benzyl peroxide) to provide a flexible easy sanding substrate for further coating. KILLER FILLER has a unique chemical makeup meaning it can be catalysed with between 1-4% BPO to achieve the working and curing times required. KILLER FILLER is resistant to cracking and breakouts even when used at thicknesses of over 20mm, whilst still achieving full cure even at very low film thickness. KILLER FILLER can even be fully cured at temperatures around 0°C. KILLER FILLER offers excellent adhesion to abraded metal, GRP & wood. Includes 2 hardeners Size: 4KG