Acura RL (1996-2004 year). Manual — part 29
Types and Materials of Exterior Resin Parts
NOTE: A standard symbol is stamped on the underside
of each resin part to show the type of material of used.
Example:
Repair procedures see page
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Polypropylene (PP) Resin Parts
General
The front bumper, rear bumper, protector moldings, and side sill panel are made of polypropylene (PP) resin. They can be repaired if the
damage or deformation is minor in nature. This section covers PP repair. Repairing PP is different from other resins such as ABS and
urethane.
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Polypropylene (PP) Resin Parts
Repair Materials and Tools
The following materials and tools are required to resin
bumpers:
Adhesive and Filler (examples):
• Bumper primer (clear type)
• Bond quick mender
• High art mat black
• High art thinner
• High art hardener
Primer surfacer (examples).
• Dual-liquid type bumper primer surfacer (gray) Refer-
ence (Isam Paint)
• Pigment: (1kg) (35.3 oz)
• Hardener: (100g) (3.5 oz)
• Thinner: (900 m )(30.4f . oz, 31.7 Imp. oz)
NOTE: Follow the manufacturer's recommendations
Tools:
• Putty knife • Brush
• Base (putty) • Masking tape
• Sandpaper • Masking paper
• Cutter
2. PUTTY BOND QUICK MENDER
After the PP primer has dried thoroughly, apply the
PUTTY BOND QUICK MENDER.
- 1. Mix one part of the mender (A) and one part of the
hardener (B) and stir thoroughly.
NOTE: Do not mix the mender and hardener in excess of
20g (0.7oz) at a time.
(cont'd)
1. Bumper Primer (Clear): Premixed type
The primer provides a good support for the filler and
primer surfacer. It is applied to the surface of the
bumper.
Drying time:
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Polypropylene (PP) Resin Parts
Materials and Tools (cont'd)
-2. Hardening starts immediately after mixing.
Practical hardness will be obtained within 60 min-
utes. The surface will be tacky within 5 minutes and
nearly hardened after 15 minutes. It takes 12 hours
for the surface to harden thoroughly 68°F (20°C)
— 3. Sanding can be done after:
• Ventilate when spraying paint. Most paint
contains substances that are harmful if inhaled or
swallowed. Read the paint label before opening
the paint container.
• Avoid contact with skin. Wear an approved
respirator, gloves, eye protection and appropriate
clothing when painting.
• Paint is flammable. Store it in a safe place, and
keep it away from sparks, flames or cigarettes.
Drying time:
3. Primer Surfacer
NOTE: Use a dual-liquid type bumper primer surfacer
(gray).
• The primer surface is used to protect the PP resin
surface and to fill cavities or flaws in the intermediate
and top coats.
• Mix 10 parts of primer surfacer and 1 part of har-
dener. Add the specific thinner (30-60%) to the
mixture of the hardener and primer to attain the
proper viscosity for spraying.
4. Intermediate and Top Paint Coats (Body color)
NOTE:
• The paints are the dual liquid type based on the color
chart.
• Measure the pigment and hardener as described so
they are in correct ratio.
• Use the acrylic urethane paint prepared according to
the mixing chart as the intermediate coat.
Mixing Ratio:
Mix 5 parts of body color pigment to 1 part of additive.
Mix 4 parts of the mixture of the pigment and additive
with 1 part of the hardener.
NOTE:
• Dilute the mixture with 40-50% of the specified
thinner (Highart Thinner).
• Be sure to mix the correct amount of the additive.
• Use a spray gun to apply the paint. Do not use a
brush.
NOTE: The HIGH ART MAT BLACK SURFACER is a
dual liquid type. If mixed, it will harden in a matter of
hours.
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