Blue cloth tapes specially designed to meet specific industry requirements. UV stabilized. Designed to take at least 14 days of outdoor exposure. High mass weighted mask. Simple to apply to rough outdoor surfaces. Whilst the polyethylene outer layer acts as a waterproof barrier, the inner cloth layer gives structural strength for clean removal, even when render covered. The cloth render masking tapes have also be modified to support sticking on a wide range of brickwork, stone cement and even PE sheeting, all while maintaining its hold and strength outdoors in all harsh conditions of winter and summer.