A Guide to Problem Solving - The Application of Interior Wood Coatings Home/Australia Site/Australia English/PRODUCTS/Problem Solving Guide PROBLEM APPEARANCE Adhesion Loss Coating peeling from substrate or the previous coat Bleeding Coating discoloured Blooming Cloudy haze on top of the coating Blushing Cloudy haze in the coating Brittleness (linked with lack of adhesion) Coating chipping or cracking from substrate or previous coat Bubbling (also called solvent boil or aeration) Bubbles in the coating Champagning Coating efforvessing like champagne Cissing (also called cratering or fish eyes) Coating drawing away in circular fashion from the substrate Cob-Webbing White "cob-web" trails being sprayed from the gun Cracking or Crazing Coating or substrate cracking or crazing Dirty or seedy finish Dirt, dust or overspray in the coating Discolouration Substrate or clear coating changing colour Fat Edge Ridge of accumulated coating on the edge of the substrate Flotation Separation of the pigment in the dry or liquid coating Flow Uneven appearance when dry Frying The dry surface of the coating pulls back resulting in raised ridges that can be seen and felt Marring of Film Coating film easily marked Opacity (poor) Substrate or previous coats showing through the last coat Orange Peel Uneven finish that resembles the skin of an orange Overspray (also called dry spray) Dry paint particles that have been sprayed and not formed a smooth film, resulting in a rough sandy feel and appearance Patchy Colours Blotchy and uneven stains Patchy Gloss Levels High and low gloss spots in the dried coating Pinholing Small pinholes visible in the dry coating Premature degradation of the coating system Coating cracking, lifting, delaminating etc Printing Defects in the film after transporting Sagging (or runs) Coating moves and runs on vertical surfaces Settling Separation of coating in the can or pail Sink Back Noticeable defects in the dry film Slow Drying Coating tacky or wet after the recommended drying time has elapsed Streaking (in pigmented finishes) Lines of differing colours in the dried coating Streaking (in metallic or textured finishes) Lines of metallic or textured streaks in the dried coating Thickening (also called bodying) Coating becomes thicker in the can over time