Paint With Confidence
Exterior Common Issues & Solutions
Text & image courtesy of the Rohm & Haas Paint Quality Institute
Poor Sheen Uniformity
Dull spots or shiny spots (also known as “flashing”) on a painted surface; uneven gloss.
Possible Cause
- Uneven spread rate.
- Failure to properly prime a porous surface, or surface with varying degrees of porosity.
- Poor application resulting in lapping (see Lapping).
Solution
New substrates should be primed/sealed before applying the top coat to ensure a uniform surface. Without the use of a primer or sealer, a second coat of paint will more likely be needed. Often, applying an additional coat will even out sheen irregularities. When rolling paint on, use a top quality roller cover.
