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Preparing Outdoors

Preparing Outdoors

Preparing Outdoors

For the most part, preparation for exterior surfaces is identical to preparation for interior surfaces with the following notes.

Timber

New and tannin rich exterior timber should be allowed to weather before painting. It's then a good idea to sand down or wire brush to remove dead fibres and open timber pores.

Roof

With the roof, colourbond and galvanized iron needs to be cleaned and sanded, while cement tile roofs should be high pressure cleaned and made free of any loose particles.

Concrete

For new concrete, cement render and mortar, the surface should be allowed to cure for 28 days before painting. For previously painted concrete surfaces loose and flaking paint needs to be removed, glossy or enamel surfaces thoroughly sanded, then the surface cleaned as with all the other surfaces. Repaint work can be a little tricky and will likely require a primer.

See the section on undercoats for more information. Often old oil enamel paints become very brittle and crack after a few years outside. Any peeling and flaking paint needs to be removed by sanding, scraping and/or stripping. Next it needs to be cleaned and dust removed from the substrate using detergent such as sugar soap.

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× PPG Safety Recall
Easy Coat 10L Easy Coat 15L

PPG PAINTS EASYCOAT INTERIOR WALLS

Low Sheen White (10L and 15L)
283200/10L & 283200/15L

Sold in Bunnings and Complete Paints Napier between 13/03/2025 and 30/04/2025
The products may contain high levels of BIT biocide, a material used as a preservative.

The product could pose a potential safety risk to consumers. The product may cause skin and/or eye irritation and damage to the user.

Immediately stop using the product.

Return the product to the place of purchase for a full refund.

When handling the product, wear gloves and eye protection.

Thoroughly wash your hands after handling the product.

For queries please contact
0800 131 686 (AEST) or infoppgpaintsnz@ppg.com