Stormsure Stormproof Durable Water Repellent 250ml, this reproofing spray from Stormsure is the perfect solution for waterproofing all of your tents, awnings and clothing. The water based formula is air-drying and increases fabric strength whilst offering uv protection. The easy to use spray applicator makes the job even more simple. Stormsure ltd is a british business making and selling special glues and adhesive tapes which are used for manufacturing and repairing a huge range of household, industrial and outdoor sporting products.