Painting Exterior Woodwork and Metalwork | Edward Bulmer Natural Paint

The surface must be clean, solid and coatable. Thoroughly remove any grease, wax or resin with Oil Thinners. Thoroughly sand existing coatings. Non-recoatable or unstable existing coatings should be completely removed by sanding or stripping. Grey or spongy wood should be sanded down to the level of the pitting or replaced. Woods with high levels of tannin such as oak and chestnut, or natural resins such as larch and some tropical species, should be tested for suitability. Our Oil Gloss is not suitable for painting over elastic sealants. Linseed oil putty and other hardened sealants should be allowed to dry thoroughly before painting.

Priming

Raw wood should be primed with Wood Primer. Allow to dry thoroughly and sand lightly before applying one coat of Oil Undercoat, then sand lightly. For composite wood materials, check for compatibility. Prime using Penetrating Primer. If staining from glues or resins is visible apply coats of a compatible proprietary stain block. For ferrous metal, thoroughly remove corrosion then sand and degrease using Oil Thinners. Prime with Red Oxide primer or – if not susceptible to corrosion – coat directly with Oil Undercoat. Not suitable for galvanized steel or non-ferrous metals.

Painting

Thoroughly stir and apply evenly and in very thin layers in the direction of the grain, using a brush or suitable roller. If necessary the first coat can be thinned with up to 3% Oil Thinners, depending on surface and absorbency. After 24 to 36 hours (depending on the weather) finish by applying another thin layer, not diluted. Fine-sand prior to the application of each coat and thoroughly remove dust. Suitable for low or high pressure airless or air mix spraying, use sparingly and smooth off afterwards using a brush.  For full details see our Technical Sheets.

NB:  Thick application, high humidity and low temperatures delay the drying process and we advise that outdoor painting is not undertaken in the winter months.

Drying

Re-coatable after 24 to 36 hours. Fully cured after several weeks. Handle with care until completely dry and protect from dust. 

Thick application, high humidity and low temperatures delay the drying process.