true .and with thebondo spot putty.... if it sinks , cracks ..ect... your putting too much on at one time ,, it's designed to fill pinholes and hairline cracks.after priming and sanding. for larger jobs it takes more layers to work properly.(or a more suitable product) If all else fails don't knock a product before you read the instructions.(Not directed at jbwelda,, just continuation of his advice)