Paint Defects

• Blistering – bubbles resulting from localized loss of adhesion and lifting of paint film from the underlying surface.
• Blocking – undesirable sticking together pf two painted surfaces when pressed together
• Burnishing – increase in gloss or sheen of paint film when subjected to rubbing, scrubbing, or having an object brush against it
• Cracking/Flaking – splitting through at least one coat as a result of aging, which ultimately will lead to complete failure of the paint.
• Foaming/Cratering – formation of bubbles and resulting small, round concave depressions when bubbles break in a paint film, during paint application and drying.
• Lapping – appearance of a denser color or increased gloss where wet and dry layers overlap during paint application.
• Mildew – black, grey or brown spots or areas on the surface of paint or caulk.
• Mud Cracking – deep, irregular crack resembling dried mud in a dry paint film.
• Sagging – downward “drooping” movement of the paint film immediately after application, resulting in a uneven coating.
• Surfactant Leaching – concentration of water- soluble ingredients on the surface of a latex paint, typically on a ceiling surface in rooms that have high humidity
• Wrinkling – a rough, crinkled paint surface, which occurs when uncured paint forms a “skin.”
• Poor print resistance – tendency of paint film to take on the imprint of an object that is placed on it
• Alligatoring - patterned cracking in the surface of the paint film resembling the regular scales of an alligator
• Chalking - formation of fine powder on the surface of the paint film during weathering, which can cause colour fading
• Dirt Pickup – accumulation of dirt, dust particles and/or other debris on the paint film; may resemble mildew.
• Efflorescence/Mottling – crusty, white salt deposits, leached from mortar or masonry as water passes through it.
• Frosting – a white, salt-like substance on the paint surface. Frosting can occur on any paint color, but it is less noticeable on white paint or light tints. On masonry, it can be mistakes for efflorescence
• Paint incompatibility – loss of adhesion where many old coats of alkyd or oil-based paint received a latex top coat.
• Peeling – loss of paint due to poor adhesion
• Poor alkali resistance – color loss and overall determination of paint film on fresh masonry.
• Poor galvanized metal adhesion – paint that has lost its adhesion to a galvanized metal substrate
• Poor gloss retention – deterioration of the paint film, resulting in excessive or rapid loss of luster of the top coat
• Vinyl siding warp – warping or buckling of vinyl siding panels that have been repainted.