YAKO 300 Lightweight Body Filler (Gallon) is a professional polyester body filler for automotive collision repair, formulated to deliver premium workability and consistent results at a competitive price point. The lightweight formula reduces the specific gravity of the mixed filler for easier spreading and reduced block-sanding fatigue on large repair areas — more coverage per gallon and less physical effort on full-panel repairs.
YAKO filler bonds to bare steel, aluminum, and galvanized substrates with solid adhesion and minimal pinholes. Smooth-spreading formula applies cleanly in a single pass, reducing multi-coat application. Cream hardener included for proper activation and predictable gel times. A cost-effective production option that delivers working properties competitive with premium name-brand fillers.
- Type: Lightweight Polyester Body Filler
- Size: Gallon
- Substrates: Steel, aluminum, galvanized steel
- Hardener: Included
- Sand With: P80–P150 grit after cure
- Part Number: 300








