EI-15
EXTERIOR/INTERIOR TRIM
FRONT BUMPER
C: REPAIR
1. COATING METHOD FOR PP BUMPER
Pro-
cess
No. Process name Job contents
1 Bumper mounting Set bumper (A) on paint worktable (B) if
required. Use paint worktable conforming to
inner shape of bumper when possible.
2Masking Mask specified part (black base) with masking tape. Use masking tapefor PP (example, Nichiban
No. 533, etc.).
3Degreasing, clean-
ing Clean all parts to be painted with white gasoline, normal alcohol, etc. to remove dirt, oil, fat, etc.
4 Primer paint Apply primer one to all parts to be painted, using air gun. Use primer (clear).
5Drying Dry at normal temperature [10 to 15 min. at 20°C (68°F)].
In half-dried condition, PP primer paint is dissolved by solvent, e.g. thinner, etc.
Therefore, if dust or dirt must be removed, use ordinary alcohol, etc.
6 Top coat paint (I)
Solid color Metallic color
Use section (block) paint for top coat.
•Paint in use (for each color):
Solid paint
Hardener PB
Thinner T-301
•Mixing ratio:
Main agent vs. hardener = 4:1
•Viscosity: 10 —13 sec/20°C (68°F)
•Film thickness: 35 —45µ
•Spraying pressure: 245 —343 kPa
(2.5 —3.5 kg/cm2, 36 —50 psi)
Use section (block) paint for top coat.
•Paint in use (for each color):
Metallic paint
Hardener PB
Thinner T-306
•Mixing ratio:
Main agent vs. hardener = 10 : 1
•Viscosity: 10 —13 sec/20°C (68°F)
•Film thickness: 15 —20µ
•Spraying pressure: 245 —343 kPa
(2.5 —3.5 kg/cm2, 36 —50 psi)
7 Drying Not required. Dry at normal temperature [10 min. or more at
20°C (68°F)].
In half-dried condition, avoid dust, dirt.
8 Top coat paint (II) Not required.
Apply a clear coat to parts with top coat paint
(I), three times, at 5 —7 minutes intervals.
•Paint in use:
Metallic paint
Hardener PB
Thinner T-301
•Mixing ratio: Clear vs. hardener = 6 : 1
•Viscosity: 14 —16 sec/20°C (68°F)
•Film thickness: 25 —30µ
•Spraying pressure: 245 —343 kPa
(2.5 —3.5 kg/cm2, 36 —50 psi)
9Drying 60°C (140°F), 60 min. or 80°C (176°F), 30 min.
If higher than 80°C (176°F), PP may be deformed. Keep maximum temperature of 80°C (176°F).
10 Inspection Paint check.
11 Masking removal Remove masking in process No. 2.
EI-00132
( A )
( B )