Appearance of a denser colour or higher gloss where wet and dry layers overlap during paint application.

Possible cause
- Failure to maintain a 'wet edge' when applying paint
Solution
Maintain a wet edge when painting by applying paint toward the unpainted area and then back into the just-painted surface. This technique (brushing from "wet to dry," rather than vice versa) will help produce a smooth, uniform appearance.
It is also wise to minimise the area being painted and plan for interruptions at a natural break, such as a window, door or corner (especially important when applying stain to bare wood). Solvent-based paints generally have superior wet edge properties.
More problem solving advice
When droplets appear on acrylic paint
Have you noticed small droplets appearing on your fresh coat of acrylic paint? Don't panic – it’s a normal part of the curing process. Find out more.
Yellowing
Yellowing describes the development of a yellow cast in aging paint solvent-based enamels. Find out more.
Wrinkling
Wrinkling is a term used to describe a rough, crinkled paint surface occurring when paint forms a 'skin'. Find out more.
Tannin staining
Tannin staining is the brownish or tan discoloration on the paint surface due to migration of tannins from the substrate through the paint film. Find out more.
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