Macpherson Trade Undercoat White

Description

Macpherson Trade Undercoat is a solvent based undercoat for interior use, ideal to enhance the finish obtained with Macpherson Gloss. It flows easily and has great covering power; the perfect non-absorbant base to achieve maximum impact from high sheen gloss colours.

Timber

All surfaces must be suitably dry, and free from anything that will interfere with the adhesion of the materials to be applied. Rub down with a suitable grade of abrasive paper and round sharp edges 1-3mm. Remove all dust. Treat knots with two thin coats of fresh knotting. Fill any fixing holes, open joints and shallow surface defects with Sandtex Trade Ready Mixed Filler. Rub down with a suitable grade of abrasive paper. Remove all dust. Prior to priming the moisture content of the substrate should not exceed 18%. Prime with one coat of Macpherson Wood Primer or Universal Primer as required.

All metals including galvanised

Surfaces must be clean and free from anything that will interfere with the materials to be applied. Wash with hot water and liquid detergent solution to remove oil, grease or any other contaminants, frequently changing the water. Rinse thoroughly with clean water. Allow to dry. Galvanised surfaces should be pre-treated with Decorators Choice Passivating Wash. Overall blackening of the surface will confirm satisfactory surface preparation.

Macpherson Trade Undercoat – Additional surface preparation – all metals

Non-ferrous metals

• Lightly abrade to a bright (not polished) surface – excluding galvanised surfaces.
• Rinse thoroughly with clean water to remove all residues. Allow to dry.
• Prime, including galvanised surfaces, with one coat of Macpherson Universal Primer.

Ferrous metals

• Remove all millscale and rust back to clean metal. Remove all residues.
• Prime within the working day with one coat of Macpherson Universal Primer.

Health and Safety

• Take special precautions during the surface preparation of pre 1960’s painted surfaces as they may contain harmful lead.
• When preparing all surfaces avoid the inhalation of dust and/or metal particles. Wear a suitable facemask.
• Store in secure dry conditions inaccessible to children or animals.
• Containers should be kept closed during storage.
• Do not empty into drains, watercourses or access routes to septic tanks.