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Picture
Framing: An effect of non-uniform color that can
appear when a wall is painted with a roller, but is
brushed at the corners. 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.
Possible Cause:
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.
Solution:
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, be sure the correct
colorant-base combinations are used. Factory colors, as
well as in-store tints, should be thoroughly shaken at
time of sale. |
