Conduct an adhesion test on all previously painted surfaces. Ensure surface is sound by cutting a small X through the existing paint with a sharp blade, press cellulose tape firmly across the cut and then rip off the tape. If the paint comes off, it is unsound and should be removed.

Repeat at random in a number of areas to test the surface.

Scrape off all loose and flaking paint and ensure the surface is dry.

If you are unsure, we recommend that you contact your local qualified tradesperson.

Remove all mould and mildew from the surface by scrubbing with a diluted household bleach solution (one part bleach, three parts water). Make sure you are wearing rubber gloves and eye protection. Power washing is also an option.

We recommend you use Dulux Weathershield® for your top coat.

Prepare surface by removing all loose paint with scraper or wire brush.

Make sure you sand any rough surfaces.

Prime bare timber before applying Dulux Weathershield®.

If blisters go down to the substrate, first try to remove the source of moisture.

Remove any blisters by scraping, then sanding the surface.

For timber surfaces, fill nail holes with a flexible, exterior wood-filler.

Unpainted masonry should be cured for 28 days before painting.

Ensure surface is sound by conducting an adhesion test and clear off any loose sand or cement.

Wash down with water using a stiff brush to remove all loose material.

Refer to the can labels for details on how to remove efflorescence.