Architectural Water Based opaque finish is a microporous, flexible coloured coating which gives a low sheen finish. It is easy to apply by brush or roller and is very quick drying. Resistant to mould growth, Architectural water based also protects timber from harmful UV light. The woodstain penetrates the surface of the timber giving perfect adhesion, so no primer is required and the surface will not flake or crack. Architectural Water Based requires very little maintenance to preserve its colour and strength. Architectural Water Based is an emulsion and can be used over most types of wood coating (please read the label carefully for application instructions). Architectural Water Based wood stain is suitable for external applications such as windows, doors, cladding, fascias, fences, conservatories, sheds, gates and all forms of external timber and joinery.