Uneven paint sheen—sometimes called “flashing” or “lap marks”—is a common frustration for homeowners. It happens when light reflects differently across a wall, creating a patchy, inconsistent look. The good news? With the right techniques and products, it’s fixable. Here are expert answers to FAQs about achieving a smooth, consistent wall finish.
1. What causes uneven paint sheen?
Uneven sheen is usually caused by:
- Skipping or using the wrong primer
- Applying paint unevenly or with inconsistent pressure
- Painting over patched areas without sealing
- Poor quality rollers or brushes
- Painting in poor lighting conditions
2. How do I fix flashing or lap marks on painted walls?
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Lightly sand the affected area with fine-grit sandpaper.
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Reapply primer to seal patched or uneven spots.
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Repaint with even strokes, blending into surrounding areas.
- Ensure proper lighting so you can see streaks before they dry.
3. Do I always need to prime before repainting?
Yes, especially over repaired or patched areas. Primer creates a uniform surface, which prevents uneven sheen.
👉 Browse Randall’s collectionsfor high-quality primers and paints.
4. What tools help prevent uneven sheen?
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High-quality rollers and brushes that hold paint evenly
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Roller extension poles for consistent pressure
- Lighting tools to spot imperfections during painting
5. How many coats of paint are needed to fix sheen issues?
Two thin, even coats usually resolve the problem. Avoid applying paint too thickly, as it can leave shiny patches.
6. What’s the best technique to avoid lap marks?
- Paint in small sections while maintaining a “wet edge.”
- Roll in one consistent direction instead of back and forth.
- Overlap strokes slightly to blend seamlessly.
7. Can lighting make sheen look worse?
Yes. Direct or angled lighting highlights surface imperfections. Always check walls under natural and artificial light when painting.
8. Is uneven sheen more noticeable with certain finishes?
Yes. Sheens like satin, semi-gloss, and gloss highlight inconsistencies more than flat or matte finishes.
9. Should I hire a professional to fix sheen problems?
If uneven sheen covers a large area or you’ve already tried repainting without success, a professional can ensure flawless results. Submit our Painter Order Formto connect with expert painters.
10. How can Randall’s help with sheen issues?
Randall’s provides:
- Premium paints and primers for smooth finishes
- Professional-grade rollers, brushes, and tools
- Expert advice through our services
- Personalized support via our Contact Us
Uneven paint sheen happens to even the best DIY painters, but it’s easy to correct with sanding, priming, and repainting. With high-quality products and the right technique, you’ll enjoy smooth, consistent walls that look professionally finished.
Randall’s has the paints, primers, and expertise to help you get it right the first time—or fix it if things go wrong.