Ceramic tiles: Because the paint has nothing to stick to ceramic tiles are hard to paint. Glazed wall tiles can be painted except in wet areas where the moisture will lift the paint. Due to heavy foot traffic, painting glazed floor tiles is not a good idea as paint will easily be removed. Coat unglazed floor tiles with a slate sealer to protect against grease and dirt.
Craftwood: A form of particleboard, craftwood has a wax content which can interfere with the drying of oil-based paints. Undercoat with a water-based sealer/undercoat and then apply oil-based or water-based finishes. You’ll find Bunnings have specific products for painting craftwood.
Gyprock: Gyprock is really easy to paint. For a flat finish, two coats of flat plastic paint are usually enough, while for a low sheen or semi-gloss finish, use a coat of water-based sealer followed by two coats of finish. If there is peeling, it will usually be near the cornice and about 75mm into the ceiling itself. This is often due to cornice cement smears not being properly removed before painting. Just scrape it back, apply an oil-base sealer, touch up and re-coat the ceiling.
Plasterglass: Plasterglass is a smooth white ceiling board whereas Gyprock has a buff-coloured paper facing. The trowelled joints in Plasterglass ceilings can cause paint adhesion problems if the correct sealer is not used.
Laminex: Before painting Laminex, Formica or other laminated surfaces with tile & laminate paint, de-grease the surface, sand back to a matt surface, then apply two coats. Painting usually works best for cupboard doors rather than bench tops because the enamel is not as hard as the original laminate surface and is less likely to scratch. Bunnings have a range of products for painting tiles and Laminex.
Peeling ceilings: Firstly, it’s important to fix the cause of the peeling paint (i.e. leaky roof or guttering) otherwise further peeling will happen later. Peeling ceilings should be wet thoroughly with a hot detergent/water solution. Loose areas will normally blister up and can be scraped off. Allow to dry, patch seal bare areas with an oil-based sealer, fill with Polyfilla if needed. Touch up with a top coat and re-coat the ceiling.
Texture coatings: Acrylic texture coatings are great for decorative effect or to cover up uneven or cracked surfaces and range from a smooth rippled finish through sand-type finish to a bold rough finish. The finish you get will depend on the type of roller used. Because they produce a thick heavy film, the surface to which they are applied must be sound, otherwise it won’t stick. Texture coatings are fairly expensive because their spreading rate is only 2 sq. metres or less, plus keep in mind, the coarser the texture, the greater the dirt pick up, especially outside.
Coolrooms: When painting a coolroom that normally runs down to 4°C, the temperature of the interior surface must be allowed to come up to at least 10°C or the paint won’t dry properly. Any mould or mildew should be treated with chlorine bleach before painting. Water-based acrylic gloss paints can be used and will not taint food. Allow at least 24 hours drying time before returning the coolroom to service.