Zinsser HD Ready Patch Meal 1 PtGet the strength of plaster and the workability of spackling paste with Rust-Oleum Zinsser Ready Patch 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 repairsDries fast, cures rock hard – outperforms vinyl spacklingSticks to metal – ideal for dents in metal doors & sidingShrink resistant – won’t sag or crack like drywall mudCan be painted when dry to the touchFor Best Results:Spot-prime patched areas, then prime the entire surface.