Semin Joint Filler Quick Dry is a powder filler based on plaster, calcium carbonate, resin, and various additives. It produces a white paste that can be used on all types of plasterboard, including those with or without insulation (such as glass wool, rock wool, or polystyrene), and features tapered edges and a paper face. This product has a setting time of 1/2, 1, or 2 hours, and it adheres to surfaces with a strength of 1,000 g. It does not crack up to 5 mm thickness and has a density of 0.9. Semin Joint Filler Quick Dry is available in a 15kg size and is classified as A1 in terms of reaction to fire.