This is a TRE4236 1K Spot Putty. To ensure an ultra smooth surface. It is a single component based system that air dries to a sandable, durable finish in minutes. Designed for use in filling scratches, pin holes, low spots, blemishes, sanding marks & other surface imperfections. Has excellent adhesion to bare metal, galvanized, aluminum & over other properly prepared existing finishes. Once cured, it can be sanded to a feather-edge & accepts virtually all paint finishes. It features minimal shrinkage & an ultra-smooth consistency.