Say goodbye to unsightly cracks and call-backs with HB42 Ultimate Decorators Caulk—voted the 'Best Caulk' by the UK Decorators Forum. Featuring an industry-leading 12.5% flexibility rating, this caulk offers more than double the movement capability of standard brands, ensuring your seals remain intact even in high-movement joints. This solvent-free, professional-grade acrylic can fill gaps up to 25mm wide and 20mm deep, making it the perfect partner for older properties and large skirting gaps. Best of all, it's overpaintable in just one hour, allowing you to finish your prep and start your topcoats on the same day. With added fungicide to prevent mould growth and a formula that won't craze or discolor paint, it is the ultimate 'fit and forget' solution for every professional decorator's kit.