Patch & Repair: Quick Dry filler is suitable for gaps, cracks, scratches and holes. Ready to overpaint in just 3 hours. Easy to sand, with no shrinkage, no depth limit and no need to spot prime. Suitable for interior use, manual applications. It can be applied to new or renovated, painted or unpainted substrates: Gypsum plaster, plasterboard, old painted surfaces, primed wood, cement, concrete, cellular concrete, breeze blocks, bricks and stone. Overcoat with any filler, any conventional paint or conventional wall-coating.