ROLLER MARKS & STIPPLE

Unintentional textured pattern left in the paint by the roller.

POSSIBLE CAUSES:

• Use of incorrect roller cover.
• Use of lower grades of paint.
• Use of low quality roller.
• Use of incorrect rolling technique.

SOLUTION:

• Use the proper roller cover; avoid too long a nap for the paint and the substrate.
• Use a quality roller to ensure adequate film thickness and uniformity.
• High quality paints tend to roll on more evenly due to their higher solids content and leveling properties.
• Pre-dampen roller covers used with latex paint; shake out excess water.
• Don’t let paint build up at roller ends.
• Begin rolling at a corner near the ceiling and work down the wall in three (3′) foot square sections.
• Spread the paint in a zigzag “M” or “W” pattern, beginning with an upward stroke to minimize spatter; then, without lifting the roller from the surface, fill in the zigzag pattern with even, parallel strokes.

Note: Images & information provided by The Rohm & Hass Paint Quality Institute.