Macpherson – Undercoat – White – 1L & 2.5L

Macpherson – Undercoat – White – 1L & 2.5L.
Macpherson Trade Undercoat is a solvent based undercoat paint for use on internal wood and metal projects.

Covers up to 15m² per litre depending on surface texture.
Do not apply when air or substrate temperatures are likely to fall below 5ºC or when the relative humidity is above 80% during application or the drying period.

 

PREPARATION:

New surfaces – 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 a 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%.

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 sugar soap to remove oil, grease or any other contaminants, frequently changing the water.
Rinse thoroughly with clean water.
Allow to dry.

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.
Ferrous metals Remove all millscale and rust back to clean metal.
Remove all residues.

Previously decorated surfaces – Timber:
All surfaces must be suitably dry, and free from anything that will interfere with the adhesion of the materials to be applied. Remove all loose, and failing or suspect paint.
Prior to painting the moisture should not exceed 18%.
Remove grey and denatured surfaces by rubbing down with abrasive paper or by mechanical means.
Feather edges of sound paint.
Remove all dust.
Treat knots with two thin coats of fresh knotting.
Fill any fixing holes, open joints and shallow surface defects with a filler.
Rub down with a suitable grade of abrasive paper.
Remove all dust.

Metals:

All surfaces must be suitably dry, and free from anything that will interfere with the adhesion of the materials to be applied. Remove all loose, and failing or suspect paint.
Feather edges of sound paint.
Remove all dust.
Remove all rust.

Timber and metals:
Wash remaining sound paint with hot water and sugar soap to remove any contaminants.
Wet abrade to provide a key.
Rinse with clean water to remove all residues.
Allow to dry.

COATING SYSTEM:

Apply one or two coats as required.
Maintain a wet edge.

APPLICATION:

Stir well before use.
Apply by brush to an even thickness (a fine, soft long filament bristle
brush gives best results).
Maintain a wet edge.
On timber lay off in the direction of the grain.

CLEANING:

Return surplus material to container.
Clean with White Spirir immediately after use.