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How to Prepare Stained and Discoloured Surfaces

 

Water stains

The first step to covering water stains is to make sure that their source has been eliminated. Once you are assured that no more damage will occur, begin the preparation process. 

Clean as much of the stain as possible from the surface and rinse. 

Allow the surface to dry and apply a stain-blocking solvent-based or water-based primer. 

If there is still evidence of stain-through, apply a second coat. 

Solvent-based primers or sealers are the most effective in stopping stubborn stain-through problems, but require plenty of ventilation and an appropriate respirator. 

Once the primer or sealer has thoroughly dried, apply the finish coat.

 

Tobacco, fire damage, soot, grease

Clean the stained area as much as possible with a detergent and rinse thoroughly. 

Allow the surface to dry and apply a stain-blocking solvent-based or water-based primer or sealer. 

If there is still evidence of stain-through, apply a second coat. 

Solvent-based primers or sealers are the most effective in stopping stubborn stain-through problems, but require plenty of ventilation and an appropriate respirator. 

Once the primer has thoroughly dried, apply the finish coat. 

In the case of fire damage, solvent-based primers or sealers provide the best combination of stain hiding and minimising odour.

TIP

I have found this to be one of the most comprehensive and expert sources of information and advice on all issues surrounding paint, paint quality and decorative effects including problem solving issues with paint and paint products.


 

 

 

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