Preparation Of Surfaces for Painting
Here is a video explaining the importance of AS/NZS 2311:2017 Guide to the painting of buildings and its relevance to preparation and substrate assessment:
Update to Australian Standards 2017
The National Institute of Painting and Decorating, the peak professional body for the painting industry, has been advising Standards Australia on the update to the industry standards. In March 2017 the new AS/NZS 2311:2009 Guide to the painting of buildings and AS 4361.2 Guide to Lead Paint Management; Part 2 Residential and Commercial Buildings were released.
Here is a summary of the changes:
- Back-rolling of plasterboard: Plasterboard surfaces must have at least the final coat back-rolled if the paint is applied by spray-gun. This is to ensure that the surface has an even textured appearance. The National Institute of Painting and Decorating recommends using a sealer-undercoat with a high film build to achieve sufficient opacity in 3 coats.
- Water-based alkaline resistant sealer is now included in the standard as an alternative to pigmented sealer on white set plaster
- Yellow-staining on plasterboard: Plasterboard which has been exposed to sunlight will often develop yellow-staining after paint has been applied. This may not become apparent until after the paint has dried. Stain-blocking sealer should be applied to plasterboard which has had exposure to sunlight.
- Roller specification now provided for sealer application
- Lead paint testing: now includes environmental testing equipment and analytical testing equipment
- Lead paint stripping: now includes modern chemical strippers
For more information on the standards development please contact Matthew Burkett through our contact page