ZINSSER 04421 1G Ready Patch Heavy Duty Spackling & Patching Compound

Full-bodied for heavy-duty interior/exterior repairs. Dries fast, cures rock hard - outperforms vinyl spackling. Sticks to metal - ideal for dents in metal doors and siding. Shrink resistant - won't sag or crack like drywall mud. Can be painted when dry to the touch.