General Questions
Application Tips
Common Paint Problems and Solutions
 ALLIGATERING
Patterned cracking in the surface of the paint film resembling the regular scales of an
alligator.
- Application of an extremely hard, rigid coating, like an alkyd enamel, over a more
flexible coating, like a latex primer.
- Application of a top coat before the undercoat is dry.
- Natural aging of oil-based paints as temperatures fluctuate. The constant expansion and
contraction results in a loss of paint film elasticity.
Old paint should be completely removed by scraping and sanding the surface; a heat gun
can be used to speed work on large surfaces, but take care to avoid igniting paint or
substrate. The surface should be primed with a high quality latex or oil-based primer,
then painted with a top quality exterior latex paint.
| PORTER
SYSTEM RECOMMENDATION |
Primer:One Coat of ACRI-SHIELD Acrylic Bonding Primer No. 515
Finish:One or more coats of Super Premium ACRI-SHIELD Acrylic Finish No. 519 Flat, 739
Satin, 619 Gloss
Or
One or more coats of ACRI-PRO 100 Acrylic Finish No. 929 Flat, 3729 Satin, or 6029
Semi-Gloss
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