Polycell One Fill Filler 1LPolycell Polyfilla One Fill is a lightweight filler designed to fill deep gaps in one application without sagging or slumping even on ceilings Features & Benefits Will not shrink or crack Can be overpainted in as little as 15 minutes For use both inside and outside Area of use: Interior and Exterior Area of application: For repairs to plaster,wood,brick ,stone & concrete Application method: Filling knife Drying Time: Dries in 15 minutes