Prevention is better than cure.
Always ensure optimal protection. By treating your tent, boat cover, convertible boat top or window awning with Sprayhood & Tent Protector a number of times a year, it will remain cleaner and waterproof for longer. At the same time, this will better protect it against weather stains, mould and green residue, because it will minimise adhesion of these to the tent cloth.
In fact, we advise impregnating new tents, window awnings or boat covers immediately with extra protection. This will keep the new cloth protected and clean for longer. (This is comparable to fragile shoes, which are often sprayed again in the shop).