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COMMON PAINT PROBLEMS
By buying a quality brand of paint you can be assured that it is unlikely that the paint is at fault. It is a common misconception that a paint failure is due to the paint product applied. Paint failures are more commonly the result of a variety of external factors.

Interior Failures: Burnishing: Cracking/Flaking: Foaming/Cratering: Mildew: Picture Framing: Poor Hiding: Poor Stain Resistance: Roller Marks/Stipple: Surfactant Leaching: Wrinkling

Burnishing:

Possible Causes:

Use of flat paint in highly trafficked areas, where a higher sheen level would be desirable. Frequent washing and spot cleaning. Objects (furniture, for example) rubbing against the walls. Use of lower grades of paint with poor stain and scrub resistance

CRACKING/FLAKING: (top)

Possible Causes:

Use of lower quality paint that has inadequate adhesion and flexibility. Overthinning or overspreading the paint. Inadequate surface preparation, or applying the paint to bare wood without first applying a primer. Excessive hardening and embrittlement of alkyd paint as the paint job ages.

FOAMING / CRATERING:

Possible Causes:

Shaking a partially filled can of paint. Use of low quality paint or very old latex paint. Applying (especially rolling) paint too rapidly. Use of a roller cover with wrong nap length. Excessive rolling or brushing of the paint. Applying a gloss or semigloss paint over a porous surface.

MILDEW: (top)

Possible Causes:

Warm, moist, humid conditions (bathrooms, kitchens, laundry rooms) use of an alkyd or oil-based paint, or lower quality latex paint failure to prime bare wood before painting painting over a surface from which mildew has not been completely removed

PICTURE FRAMING:

Possible Causes:

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.

POOR HIDING: (top)

Possible Causes:

Use of a low quality paint, tools/wrong roller cover. Use of an improper combination of tinting base and tinting color. Poor flow and leveling (see Poor Flow / Leveling). Use of a paint that is much lighter in color than the substrate, or that primarily contains low-hiding organic pigments. Application of paint at a higher spread rate than recommended.

POOR STAIN RESISTANCE:

Possible Causes:

Use of a lower quality paint applying paint to an unprimed substrate

ROLLER MARKS "STIPPLE" (top)

Possible Cause:

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

SURFACTANT LEACHING:

Possible Cause:

All latex paint formulas will exhibit this tendency to some extent if applied in areas that become humid (bathrooms, for example), especially in ceiling areas.

WRINKLING: (top)

Possible Causes:

Paint applied too thickly (more likely when using alkyd or oil-based paints). Painting during extremely hot weather or cool damp weather, which causes the paint film to dry faster on top than on the bottom. Exposing uncured paint to high humidity levels. Applying top coat of paint to insufficiently cured primer. Painting over contaminated surface.

 

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