Hints and Tips

Flaking/Blistering of Paint on Wood

Flaking/blistering of paint on wood is most commonly caused by moisture beneath the paint film. Knots in the timber can also lead to blistering. Flaking can occur if paint has been applied over denatured wood, dirt, grease, etc. Movement of the wood, particularly on joints can cause it to crack. This can allow moisture to penetrate the wood which in time can lead to flaking.

Areas of flaking or blistering paint should be removed by scraping back to a firm edge using a paint scraper. Sand down to smooth edges. If the problem is extensive the surface should be stripped back to bare wood. All knots streaks should be treated Knotting Solution and then bare wood should be primed. Make good all open joints and surface with suitable wood filler.



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