Everflex Contract 125 One Hour Caulk is a fast-drying flexible decorators’ filler and sealant that remains permanently flexible. Can be overpainted with most paint types or covered over with wallpaper; no sanding down required. Ideal for sealing and filling cracks and gaps prior to decorating, and for use around skirting boards, ceiling cornices, window and door frames, stair treads and risings and fixtures adjoining walls ---Fast-drying – can be overpainted in 1 hour ---Easy water clean up ---Excellent slump resistance ---Permanently flexible ---Can be used to fill damaged plaster ---Certified to the European standard EN15651 for façade use internally in compliance with the Construction Product Regulation ---CE Marked.