(4) Checking. This is the extension of hair cracking and covers the whole surface with a
small pattern (Fig 5.4).
Fig 5.4 Paint Checking
(5) Cracking. This term is specifically used when at least one paint coat is affected and the
complete paint system is likely to fail (Fig 5.5).
Fig 5.5 Paint Cracking
(6) Crocodiling or Alligatoring. A drastic type of chalking producing a pattern resembling the
crocodile or alligator hide (Fig 5.6). This kind of fault requires considerable preparation to
remove the pattern down to a suitable substrate for re-painting.
Fig 5.6 Paint Crocodiling
Change 1 5-7