TOUPRET® Fill-Flex is supplied ready-mixed in a handy tub. This highly flexible filler is perfect for gaps and cracks, ideal for skirting and architraves where movement is possible. Its flexible formula moves with the substrate and won't crack. Suitable for both internal and external use, it adheres to paintwork with no need to spot prime. It can be used on new or renovated substrates, either unpainted or painted gypsum plaster, plasterboard, cement, concrete, cellular concrete, breeze blocks, bricks and stone. It can be painted over in just 24-48 hours. * Adheres to Plaster, Masonry, Primed Wood & Paintwork * Highly Flexible * For Internal & External Use * No Need to Spot Prime Toupret Fill-Flex is perfect for filling gaps and cracks where movement is possible - this highly flexible filler moves with the substrate and won't crack, making it perfect for skirting, architraves and staircases. Suitable for both new and renovated surfaces, Fill-Flex adheres to paintwork with no need to spot prime. Use it on painted or unpainted substrates including gypsum plaster, plasterboards, cement, concrete, cellular concrete, breeze blocks, bricks and stone - it can be painted over in just 24-48 hours. * For gaps and cracks - suitable for interior or exterior use * Highly flexible - moves with the substrate and won't crack * No need to spot prime - gets the job done quicker and easier * Ready to use - suitable for new and renovated surfaces * Versatile - adheres to plaster, masonry, primed wood and paintwork * Can be painted over - ready to paint in 24-48 hours