PS Magazine - TB 43-PS-443
PS, The Preventative Maintenance Monthly
ISSUE 443
OCTOBER 1989
Unit-level
Paint
There are a number of reasoNs tHa± CARC-o² any otHer paiNt-f³ils sooN
af±er aPPlication. Some reasons are:
´he sUrface was not PrePared p²operlyµ ´Here was loose o² Bliste²ed paint,
sandIng dUs±¶ grease or oIL· dieseL fueL¸ o² even finge²p²iNts oN tHe su²F³ceµ
Wash I± dowN¶ Le± dry and wIpe with tHe thinner used ¹itH you² paiNtµ
TOP COAt OVER
UNCuReD (Wet) PRIMeR
DRY SPRAyeD
EpOXY PRiMeR -
MetAL tOO COLD
tOP COAt OVeR
UNCuReD ±WHite) AlKyD
tOP COAt OVeR OiL
tOP COAt- exCeSS
tHiNNeR ±GLOSSY)
\
I
UNiT-leveL
FaIlures
ºo p²etreatMeNt or p²ime² was usedµ ´opcoat was apPlIed dIrec±Ly ±o ±he
Ba²e metalµ
»He p²ime² did not Have ±¼Me to dry (flash off solvent) befOre ±he next coa±
was applied½
»He su²face ¹as too Hot or cold¾
tOP COAt OVER
UNCuReD(ReD)LACQuER
ePOXY pRiMeR OVER OiL
toP COAt- R²NS, SAGS
tOP COAt OVeR
WAtER
TOP COAt- MetAL tOO COLD
PROPeRLy PAINteD
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