Picture framing occurs when a wall is painted with a roller, but is brushed at the edges and 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.
Applying wet paint to the edge of dry or partially dry paint
Sheen level and/or surface texture difference due to varying application techniques between brush and roller
Insufficient stirring of the paint prior to application, leading to poor tinter incorporation
Brushing may result in lower coverage rates than rolling, producing a thicker film leading to a colour/opacity difference
Picture framing can be minimised by ensuring adequate coverage is achieved across the entire wall and by maintaining a wet edge when rolling over brushed areas.
Work in smaller sections of the room to maintain a 'wet edge' and ensure spread rates between brushes and rollers and similar. With tinted paints, be sure the correct colourant-base combinations are used. Factory colours, as well as in-store tints, should be thoroughly shaken at time of sale, and the paint should be stirred well prior to use.
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