SOLUTION
Follow label and data page directions for the appropriate roller cover type and nap size. In general:
- Latex paints use synthetic fiber covers.
- Alkyd/oil paints use lambs' wool, mohair, or other natural fiber covers.
- Smooth surfaces: flats and satins use 3/8" covers; semi-gloss and gloss use 1/4" covers.
- Textured surfaces: (depending on the texture) 1/2", 3/4", or longer.
Quality rollers generally ensure adequate film (e.g., primer or paint) thickness and uniformity.
When using latex paint, pre-dampen roller covers with water and shake out excess water.
Condition the roller by wetting it with the paint for 5 minutes prior to using.
Do not let paint build up at roller ends.
Problem areas should be sanded smooth before repainting.
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