The wash uses acrylic polymer technology in place of c6 fc, still delivering a powerful cleaning action and reproofing in a single wash cycle. Its powerful cleaning action, combined with the water repellent properties of apt, will enhance the performance of all your waterproof garments whilst saving time, energy and water perfect for regular maintenance of your favourite outdoor kit.wash repel does require heat activation, ideally via a low temperature tumble dryer.formulated to clean and restore the water repellent properties of all outdoor clothingfluorocarbon free and environmentally responsiblerequires heat activation ideally via a tumble dryersuitable for use on all gore tex and event garmentsa bluesign system approved productwash repel utlilises granger's new acrylic polymer technology, developed to provide a highly breathable dwr finish which closely matches the real world water repellency and durability of existing fluorocarbon based proofers.this product replaces grangers' old 2in1 cleaner proofer usage instructions have not altered.this product has bluesign certification, meaning sustainable production methods have been used.