Polyester Steel Paste is a high molecular weight, two component, unsaturated polyester resin based filler. It adheres very well to the surface, fills the deep pits on the surfaces, easily sanded, creates a very smooth surface. It is used to repair deep surface defects during auto paint renovation and similar repairs. Cleaned bare hair can be applied directly to aluminum and fiberglass surfaces. At the same time, it is used safely in furniture repair works.