Born from a time when auto body repair involved heat-shrinking metal and pouring lead, our Bondo body filler has been helping vehicle owners and auto body professionals for decades. This simple two-part solution includes a resin-based filler and a hardener. A tube of the hardener is included with Bondo body filler. The consistency of both compounds is creamy, but as the hardener is blended together with the filler it acts as a catalyst, creating a chemical reaction which cures the product. This fast-curing body filler spreads easily and will adhere to correctly prepared surfaces. Bondo body filler shapes in minutes and will accept as many reasonably applied applications as required to fill holes and deep scratches or dents. It is formulated to be non-shrinking and permanently durable. Once it has completely hardened – normally in 25 min or less – Bondo Body Filler can be sanded using various grits to achieve as smooth a finish as required. In addition to its uses in repairs of typical vehicle surfaces, the filler is also suitable for repairing other surfaces including wood, steel, aluminum, fiberglass and concrete. Bondo body filler products include directions that help you easily create just the right mix for your auto repair job and allow for same-day repairs.All purpose solution for repairing dents, dings and scratches in your home or on your carInterior or exterior useMulti-surface use on metal, aluminum, masonry, concrete and moreEasy-to-use filler mixes and spreads smoothlyNon-shrinking formula is permanently durableTwo-part formula chemically bonds with surface to adhere permanentlyFast-curing formula is sandable in 20 min for same-day repairsPaintable formula is compatible with most paints and paint systemsMixes light blue when hardener and filler are mixed thoroughly and ready-to-use