Need to make strong repairs to plaster, stone, concrete or wood Ronseal Multi-Purpose Powder Smooth Finish Filler is the ultimate, high performance filler. This filler gives excellent adhesion, fills gaps up to 40mm deep. A blend of superfine chalk and white plaster with added powdered polymer. Areas of use Walls and ceilings. Application Filling Knife. Drying time 1-2 hour. Protection level High. Can be drilled once dried hard. Comes in air tight bag. Easy to mix. Buttery texture when mixed. Extremely easy to sand. Various sizes available.