By Barb Skivington for Real Girls Create
You're disappointed to find that your new paint layers have either peeled, blistered or cracked after the paint has dried. I’d like to share some information that might help you understand why this happened, what you need to do to make repairs, and how you can avoid these types of problems in the future.
Peeling / Blistering
This is commonly due to improper surface treatment before your application of paint (for example, cleaning with harsh cleaners and failure to rinse well afterwards), or inherent moisture/dampness being present in either the substrate or environment.
Cracks forming in the paint are due to the unequal expansion or contraction of paint coats. It usually happens when coats of paint are not allowed to dry completely before the next coat is applied, or the surface of the paint is exposed to strong sunshine or the drying process is accelerated with the use of a high heat source (such as a blow dryer), or close exposure to an operating heat vent.
There are still more reasons why cracks can form. A common cause in the United States is the surface was previously cleaned with a spray furniture polish that contains dimethicone, a silicone which can cause cracks to appear in the paint layers, especially along edges. Yet another reason is the surface was first sealed with shellac that was either past its shelf life or applied too thickly (care should always be taken to use the freshest shellac and to apply it in thin layers; too thick layers can cause your new paint layers to crack or even peel away).
Regardless of the reason, the fix remains the same in all cases. You will need to sand the affected areas with medium or fine grit sandpaper to remove the defects and smooth the surface. Ensure that the underlying substrate is completely dry; if moisture is present allow it to evaporate. Then seal those areas, including the remaining paint, by wiping on one or two coats of clear shellac. Finally, once the shellac is dry, reapply your paint. Basically, you’re removing the damage and starting over, but don’t panic, these are all quick steps!
Here are a few tips to help you avoid these defects from happening in the future:
Follow these tips and you should enjoy stress-free painting in the future.
Permission to publish this article given expressly to 3PaintGirls by Barb’s estate.