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Tackle mould


From the Resene product range, Optimising additives range – Resene MoulDefender

Paint films have to put up with an awful lot of abuse during their lifetimes, not the least of which is attack by mould.

Resene MoulDefender

Mould is a major cause of paint disfigurement. It destroys the paints fresh, clean appearance and if left unchecked shortens the life of the paint film. Unless removed within a few months of its appearance, mould penetrates the body of the existing film and, once firmly established, will grow through subsequent paint coatings impairing adhesion and ruining the appearance of the paintwork.

On painted surfaces, mould looks like dirt and frequently the two cannot be visually distinguished. The most common species of mould are black but others can be brown or green. By wetting the surface and rubbing, mould will show up as slime.

Most high quality paints contain a fungicide but as its killing ability is finite mould will eventually take over. The only way to remove mould permanently is to remove the source of moisture and/or provide adequate ventilation. Mould will only grow in damp areas or where the relative humidity is greater than 70%.

Fungicidal washes, such as Resene Moss & Mould Killer, are extremely effective at killing mould with the added benefit of bleaching the moulds clean. They can be used as a cosmetic treatment to clean up mould-infested surfaces where providing adequate ventilation is not feasible and to sterilise old surfaces before repainting. However fungicidal washes have no residual effect so any ongoing effect must be provided by the paint itself or further maintenance.

While most high quality paints contain fungicide at a level designed to cope with average exposure, areas prone to mould, such as damp bathrooms, may need extra protection. Resene MoulDefender is a fungicidal additive designed to be added to waterborne paint at the point of sale when a particular need for extra protection against mould is identified. Suitable for use inside and out and ideal for wet areas such as kitchens, bathrooms and laundries, Resene MoulDefender will slow down the reappearance of mould. Essentially Resene MoulDefender acts as a mould protection booster shot in your paint.

Use Resene Moss & Mould Killer to kill mould and sterilise surfaces then paint with Resene waterborne paints dosed with Resene MoulDefender and inhibit future mould growth.

Resene MoulDefender will not necessarily prevent all future mould growth as this is impossible, particularly in very damp areas. However, the addition of Resene MoulDefender will significantly slow down the growth of new mould, minimising maintenance requirements. Improved ventilation methods, such as extractor fans in bathrooms, will also act to slow down the growth of new mould.

View the MoulDefender product flyer (PDF)

 
 

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