builder's flat paint are potential problem surfaces for wallcovering and painting because they are porous

Superdec has a microporous finish which allows wooden surfaces to breathe and contains a biocide to protect against wood-destroying fungi

conservatories and decking

Unlike ordinary paints

high-gloss finish and stain protection to hardwood

Sadolin Weatherproof Exterior Wood Stain for Ultimate Protection - Natural Zinsser Cover Stain builder's flat paint are potentialDescription Specification Download Shipping & Returns Product Description: Sadolin Extra is a tough, weatherproof wood stain that provides long lasting colour and protection to exterior wood. This hardwearing wood stain is flexible and is ideal for use as a topcoat over Sadolin classic for maximum durability on new or bare doors or windows. Available in Natural, Sadolin Extra is perfect for use with exterior wooden doors, windows, and conservatories.