Sylglas SYLWT506 waterproof tape is purposely designed as a permanent leak sealant for piping and tanks and can be used on most materials. The WT506 is translucent and offers a multitude of uses around the home and garden, with an effective adhesive for most metals, wood, ceramics, fibreglass, some hard plastics, plaster, masonry and concrete. This waterproof tape will form a strong waterproof self-adhesive seal. Other tapes will yellow and go brittle in sunlight - not this one as it is UV stable and flexible. Ideal for sealing cracked panes of glass, repairing/joining polythene cloches and sealing overlaps on plastic roofing sheets. Size: 50mm wide x 6 metres.