Acura RL (1996-2004 year). Instruction — page 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

9-3

Repair procedures see page

9-12

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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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