Get the strength of plaster and the workability of spackling paste with Rust-Oleum Zinsser READY PATCH0 Professional Formula Spackling & Patching Compound. This full-bodied product is durable enough for your most heavy-duty repairs, indoors or out. 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 & siding Shrink resistant - won't sag or crack like drywall mud Can be painted when dry to the touch Quart. Rustoleum / Zinsser Corp