How To Paint Interior, Exterior & Metal Surfaces
Fibreglass sheeting: Corrugated fibreglass sheeting (and other plastic sheetings) used on pergolas and shade houses can be painted with an exterior water-based acrylic paint. This process will also extend the life of the sheeting. Sheeting should be scrubbed with a steel wool pad and a mild solution of detergent in water, rinsed off and allowed to dry before painting.
Texture coatings: Acrylic texture coatings are used for their decorative effect or to cover up uneven or cracked surfaces. They may contain fine or coarse aggregate or be unfilled. The textures range from a smooth rippled finish through sand-type finish to a bold rough finish. The finish also depends on the type of roller used. Because they produce a thick heavy film, the surface to which they are applied must be sound, otherwise loss of adhesion may occur. Because the spreading rate of texture coatings is only 2 sq. metres or less, they are relatively expensive coatings. The coarser the texture, the greater the dirt pickup especially on exterior surfaces.
Aluminium: Scrub bare aluminium with turpentine and a steel wool pad. Rinse with clean water and dry off. Paint as soon as possible with water-based acrylic paint or prime with water-based galvanised iron primer if an enamel top coat is to be applied. Anodised aluminium window frames can be cleaned down with water and detergent and repainted with water-based acrylic finishes.
Brass: Sand and prime with re-oxide metal primer or polish with Brasso. Wipe with methylated spirits to remove residues of the Brasso. To maintain polished brass protect by spraying with a clear spray pack.
Colorbond: Colorbond is pre-painted galvanised or zincalume steel sheeting. It is carefully factory-coated for long life. If Colorbond is damaged in transit or during erection you should touch up. Special Colorbond touch up spray packs are available. For the painting of surfaces adjacent to Colorbond, use Colorbond Trim Colour. This is a water-based acrylic matched exactly to the Colorbond colours. For repainting of weathered Colorbond, wash down to remove any chalkiness, then apply low sheen exterior paint.
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