Rapid 9 Lb One Pass Multiwall Repair Subject Matter And Joint Compound - Sand And Paint In 90 Minutes - Single Coat Application - Patch As Much As 1/2" Thick - Non-Shrink - No Topping Needed - Indoor/out Of Doors - Water-Proof - Durable In Wet Environments - Now Not Promote Mold Growth - Astm D3273.
