Bondo Original Filler is an all-purpose, two-part filler compound used for interior or exterior repairs for home or auto. Fill dents, dings, and scratches on your car or around your home. The easy-to-use filler shapes in minutes and is formulated to be non-shrinking. This fast curing two-part filler allows you to make high-quality, permanently durable repairs to metal, aluminum, masonry, concrete, and more.