Painting Advice for Weather Affected Exterior Surfaces
The products you will need to use depends on
whether you are painting over affected surfaces or painting new
Refer to the below information, in conjunction with label
instructions, to guide you in your product selection.
Advice for painting affected
1. Determine if the surface is sound
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
2. Does the surface exhibit
Remove all mould and mildew
from the surface by scrubbing with a diluted household bleach
solution (one part bleach, three parts water); wear rubber gloves
and eye protection.
Power washing is also an option
3. Is the surface peeling
Prepare surface by removing all loose paint with scraper
or wire brush, sand rough surfaces, prime bare timber.
4. Is the surface blistering ?
If blisters go down to the substrate, first try to remove
the source of moisture. Remove blisters by scraping, then sanding
Advice for painting new surfaces
1. Painting new exterior timber surfaces
Timber- Fill nail holes with a flexible, exterior
woodfiller. Sand all dressed timber.
2. Painting Exterior Brick, Masonary,
Fibro Cement Surfaces
Unpainted masonry should be cured for 28 days before
painting. Ensure surface is sound by conducting an adhesion test
and clear of any loose sand or cement. Fill holes with grouting
cement. Wash down with water using a stiff brush to remove all
loose material. To remove efflorescence see can for
More information, please contact Dulux Customer Service
on 13 23 77
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