Operating Instructions
Vehicle
Page4-26
Crestline
Manual
3/15/2010
Coach
6F3905Clear: Clearcoat Mixing andApplicationProcedure
6A Inspection
Inspect paintedarea's for uniformity in color and hiding.
6BClean
Tack off theentire area tobe clearedonly if necessary.
6CMixClearcoat
F3905Mixes 3 parts (Clear) to% part Reducer (F33XX) to 1 part Hardener (F3240) to
1 ozF34XXAdditive per RTSQuart Refer toProduct BulletinDFT-055
F33XXThinner Selection: Additives:
MediumF3330
F3400Fast
SlowF3340
F3405Medium
ExtraSlowF3350
A solvent selection
to
fast for the conditionswill result in "Fat" filmbuilds that take extra
time
to
flash.. These "Fat" films cause gloss dye back, shrinking, swellingand solvent
entrapment leading
to
solvent pope. Abetter practice is
to
choose
a
solvent one step
slower than the current conditions.
Thoroughlymixall 3 components prior to use.
6DApplyClearcoat
Set air pressure at 45-55PSI at thegunapply 2 full wet coats.
1.3 - 1.5mmFluidTip
6EPot Life
2Hours@ 70degF
Pot life is defined aswhen a "Product Doubles inViscosity".
6FDryTimes
Air dry over nightmaintainingaminimumof 65°F.
Or allow color todry for 30minutes in spray boothbeforemoving into the shop.
Air dry for 6hours beforeAppling tape@ 68°F
Bake for 40minutes@ oven set temp of 150°F
6GPolishing
Allow finish to sit 4 - 8 hours after bake cool down before polishing.
Allow finish to sit 16hours@70 degF beforepolishing.
Select the finest grade of wet/dry sandpaper possiblewhen sanding clearcoat finishes.
If sanding and polishing is required, PPG recommends the use of 2000Grit or
finer alongwith theuse of a foam polishing pad.. Follow the recommendations
of the3MPolishing system
6HFilmBuild
Total
dry
film build per coat of clear onlymust beaminimumof 2.0mils
and amaximumof 2.5mils
Total
wet
film build per coat of clear onlymust be aminimumof 4.0mils
and amaximumof 5.0mils
