Problem Solving Guide
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 back with adhesion)
Coating 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 drwing away in circular fashion from the substrate
Cob Webbing
White "cob-web" trails being sprayed from the gun
Cracking
Coating or substrate cracking or crazing
Dirty or Seedy Finish
Dirt, dust or overspray in the coating
Discoluration
Substrate or clear coating changing colour
Fat Edge
Ridge of the pigment in the dry or liquid coating
Floatation
Seperation of the pigment in the dry or liquid coating
Flow
Uneven appearance when dry
Frying
The surface of the coating pulls back resulting in raised ridges that can be seen and felt
Marring of Film
Coating film easily marked
Opacity
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 spryaed 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 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
Seperation of coating in the can or pail
Sink Back
Noticable 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 streaks in the dried coating
Thickening (also called bodying)
Coating becomes thicker in the can over time