Subaru IMPREZA GD 2007 Series Manual page 3794

asieps_tobira_IM_US.book 29 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Process
Process name
No.
9 Welding
10 Sanding (II)
11 Masking
Cleaning/
12
degreasing
13 Primer coating
14 Leave unattended
Primer surfacer
15
coating
16 Drying
17 Sanding (III)
Front Bumper
Using a heater gun and PP welding rod, weld the beveled spot while melting both the rod and
damaged area.
(1)
(1) Welding rod
(2) Melt hatched area
(3) Section
NOTE:
• Melt the sections indicated by hatched area.
• Do not melt the welding rod until it flows out, in order to provide strength.
• Always keep the heater gun 1 to 2 cm (0.4 to 0.8 in) away from the welding spot.
• Leave the welded spot unattended until it cools completely.
Remove excess part of weld with a putty knife. If a drill or disc wheel is used instead of the knife,
operate it at a rate lower than 1,500 rpm and grind the excess part little by little. A higher rpm will
cause the PP substrate to melt from the heat.
Sand the welded spot smooth with #240 sand paper.
Mask the black substrate section using masking tape.
Recommended masking tape: Nichiban No. 533 or equivalent
Completely clean the entire coated area, using solvent similar to that used in Procedure 4.
Apply a coat of primer to the repaired surface and its surrounding areas. Mask these areas, if nec-
essary.
Recommended primer: Mp/ 364 PP Primer
NOTE:
Be sure to apply a coat of primer using a spray gun at a pressure of 245 — 343 kPa (2.5 — 3.5 kgf/
2
cm , 36 — 50 psi).
Leave the repaired area unattended at 20°C (68°F) for 10 to 15 minutes until primer is half-dry.
NOTE:
If dirt or dust comes in contact with the coated area, wipe it off with a cloth dampened with alcohol.
(Do not use thinner since the coated area tends to melt.)
Apply primer surfacer to the repaired area two or three times at an interval of 3 — 5 minutes.
Recommended surfacer:
• UPS 300 Flex Primer
• No. 303 UPS 300 Exclusive hardener
• NPS 725 Exclusive Reducer (thinner)
• Mixture ratio: 2 : 1 (UPS 300 : No. 303)
• Viscosity: 12 — 14 sec./20°C (68°F)
• Coating film thickness: 40 — 50 µ
Allow the coated surface to dry for 30 minutes at 20°C (68°F) or 20 minutes at 60°C (140°F).
Sand the coated surface and its surrounding areas using #400 sand paper and water.
EI-29
EXTERIOR/INTERIOR TRIM
Job contents
(2)
(2)
(3)
EI-00237
EI-00042