Weathershield Exterior High Gloss Solvent-based For use on exterior joinery and smooth planed wood generally. Provides an excellent high gloss finish. Contains a fungicide to help protect against the disfiguring effect of mould growths on its film. Can be used on plastic gutters, pipes and primed metal such as garage doors. For plastic gutters and pipes, apply 1 coat thinned followed by 1 or 2 full coats. Colour range Over 4000 colours Pack sizes 1L, 2.5L, 5L Touch dry 4-6 hours Recoatable After 16-24 hours Coverage Up to 18mÃ‚Â² per litre on most surfaces. Thinning Thinning not usually necessary but if required add up to 1 part Dulux Thinner No. 41 or white spirit to 10 parts paint.