Picture Framing

An effect of non-uniform color that can appear when a wall is painted with a roller, but is brushed at the comers. The brushed areas generally appear darker, resembling the "frame" of a "picture." Also, sprayed areas may be darker than neighboring sections that are brushed or rolled. Picture framing can also refer to sheen effects.

• Usually a hiding (coverage) effect. Brushing will generally result in lower spread rates than rolling, producing a thicker film and more hiding.
  
• Adding colorant to a non-tintable paint or using the wrong type or level of colorant.

Make sure that spread rates with brushes and rollers are similar. Don't cut in the entire room before roller coating. Work in smaller sections of the room to maintain a "wet edge." With tinted paints, he sure the correct colorant-base combinations are used. Factory colors, as well as in-store tints, should be thoroughly shaken at time of sale.

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