Geely Emgrand X7. Manual part — 699

12.11 information and maintenance of plastic panel

12.11.1 Description and Operation

12.11.1.1 Description and operation

Currently, the interior and exterior surface covering parts are mainly made of modified PP, ABS, PC+ABS and
PVC (artificial leather material), which are thermoplastic and modified material thereof. The interior and exterior
trim non-surface covering part are further made of POM, PA class and HDPE material, etc. Thermosetting plastics
are seldom used for interior and exterior trim. Only the ashtray adopts phenolic plastic. The thermosetting plastics
are mainly applied in electric products and safe components to be as structural members. The thermoplastic
plastics parts are better maintained by hot soldering iron plastic material filling welding machine, but the
thermoplastic plastics are usually replaced for maintenance. For thermosetting plastics, the maintenance materials
can be epoxy resin and other harder two-component materials. In this chapter, the maintenance methods are
simply introduced and maintenance is not recommended.

Classification of plastic:

The thermosetting plastic refers to that is able to cure through heating or under the other conditions or has the
insoluble (non-melting) property, such as phenolic plastic and epoxy plastic, etc. The thermoplastic plastics are
the plastics which can be softened by heating and hardened by cooling repeatedly under specific temperature
range, such as polyethylene, polytef and so on. The thermosetting plastics and thermoplastic plastics can be the
hard plastics and also can be the soft plastics.

12.11.2 Dismantle and install

12.11.2.1 Maintenance precaution of plastic part

1. Apply defense ointment on the exposed skin to avoid irritating skin.

2. Wear

rubber

gloves.

3. Wear protective goggles when compressed air and sanding are used.

4. Clear away any mixture which touches the skin immediately, because the curing velocity of mixture is very

fast.

5. Please wear dust mask and protective goggles when grinding and sanding.

6. Clean the skin with cold water to reduce resin and dusts’ weak irritation on skin.

7. Do not make maintenance materials on clothes.

8. Maintenance materials shall be used under the environment with good ventilation, because the smoke

andparticulate pollutant caused by maintenance materials is poisonous.

9. After use, enclose all maintenance material containers. Dust or moisture will contaminate maintenance

materials and thus compromise the maintenance effects.

12.11.2.2 Maintenance of thermosetting plastic pit

1. Clean and dry the components for repairing.

2. Heat the pit position with hot air of blower until the proper tool can flatten the pit.

3. Polish the pit area with sand paper/emery paper.

4. Clean the maintenance position with cleaning agent and dry it in the air for 5 min.

5. Apply with a layer of thin adhesion agent and dry in the air for 10 min.

6. Fill the uneven surface with adhesion agent and smooth it with slice.

7. Accelerate the curing process with an infrared lamp and adjust the temperature to 60 -70℃ (140-158ºF) to heat

for 15min.

8. Polish the pit area with sand paper.

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9. Wipe off the dust / abrasive dust.

10. Apply with a layer of thin adhesion agent and dry in the air for 10 min.

11. Recover the painted surface with the patching procedure for painted surface of plastic parts surface.

12.11.2.3 Scratch maintenance of thermosetting plastic

1. Clean and dry the positions for repairing.

2. Remove the bulged materials with sand paper.

3. Clean the maintenance position with cleaning agent and dry it in the air for 5min.

4. Apply with a layer of adhesion agent and dry in the air for 10 min.

5. Stuff the irregular surface with adhesive agent and trowel the adhesive agent with a trowel.

6. Accelerate the curing process with an infrared lamp and adjust the temperature to 60 -70℃ (140-158 ºF) to

heat for 15 min.

7. Polish the pit area with sand paper.

8. Wipe off the dust/abrasive dust.

9. Apply with a layer of thin adhesion agent and dry in the air for 10 min.

10. Recover the painted surface with the patching procedure for painted surface of plastic parts surface.

12.11.2.4 Crack maintenance of thermosetting plastic (Length is below 100 mm)

1. Clean and dry the positions for repairing.

2. Chisel 5mm (0.19 in) length of end of crack and polish the crack to be V-shaped incision o remove the

internal stress and bulged position.

3. Clean the maintenance position with cleaning agent and dry it in the air for 5min.

4. Apply with a layer of adhesion agent and dry in the air for 10 min.

5. Adhere the reinforcing band to the back of maintenance parts with adhesion agent and make it lap with

damaged components for 20 mm (0.79 in).

6. Accelerate the curing process with an infrared lamp and adjust the temperature to 60 -70℃ (140-158 ºF) to

heat for 15 min.

7. Fill the polished front end of crack with adhesion agent and smooth it with slice.

8. Accelerate the curing process of front end of crack with infrared lamp.

9. Polish the pit position with sand.

10. Apply with a layer of thin adhesion agent and dry in the air for 10 min.

11. Remove dust/ abrasive dust.

12. Apply with a layer of adhesion agent and dry in the air for 10 min.

13. Recover the painted surface with the patching procedure for painted surface of plastic parts surface.

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12.12 Collision maintenance

12.12.1 Specification

12.12.1.1 Collision maintenance material

For the body collision accidents, some phenomena will appear, such as structural distortion, steel plate crack,
welding spot disordering and so on. Sometimes partial damage to assembly parts such as engine and chassis,can
also appear. When collision maintenance of body is performed, adhesion agent, sealant, looseness-proof agent,
surface protective materials, anti-corrosive materials, chemical materials may be used. So please use these
products according to the application, application range and specification. During the maintenance process of
body, maintenance materials shall be selected according to the functional requirements for parts materials. The
following table lists the maintenance materials which may be used during the maintenance process of body. It can
only be referred during the maintenance process of body.

Adhesive for body maintenance

Products Material

Function Recommended

Model

Vehicle sealant

Monocomponent

polyurethane

Bonding of body skin, interior and exterior

trim and body structure and other

components.

The sealant has strong binding power and

cohesion. This sealant has good cohesive

property with metal and various painted

surfaces.

Tangshan kesaixin ：

1922、1923/

Room temperature curing-type adhesive is

used for the seal of the welding line of the

body.

Welded seam

sealant

Monocomponent

polyurethane

Room temperature curing-type adhesive is

used for the fine seal of the door, engine cabin

lid and the trunk flanging.

Chinese automotive

components industry

company:C8802

Chip-resistant

primer

Rubber and

Resin

It is anti-collision glue for chassis of curing

type under room temperature. A layer of

permanent protective coating of elastic

corrosion resistance and anti-aging is formed
in the underbody and wheel casing. No crack

appears under low temperature.

These kinds of products can replace PVC

coating and have various functions, such as

good anti-corrosive function, sound

insulation, anti-stone, anti-oxidation and

protective coating functions.

Chinese automotive

components industry

company:C312DW

Windscreen glue

Monocomponent

polyurethane

Polyurethane adhesive cured at room

temperature is used for sealing glass for

vehicle window.

This glue has good bonding property and can

react with moisture in the air. The glue has

strong strength, age resistance, vibration and

fatigue resistance, low temperature resistance

and no corrosion and other good properties

China Auto Parts &

Accessories Corporation

C8802

Tianshan kesaixin ：

1956、1924

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after curing.

Primer ——

A kind of primer shall be applied on the body

and glass before applying with the windscreen

glue to make windscreen and vehicle bonded

firmly.

Detergent ——

Be used for clean all surfaces in contact with

the primer and adhesive.

Pressure-sensitive

adhesive tape

Acrylic adhesive

tape

It is used for bonding of rubbing strips,

nameplates, guard plates, splash guard, door

protection, body, various trim strips and so

on.

It has good weather resistance and durability.

3M 4229P、4215、4221L

Heat-Sensitive

Adhesive Tape

Acrylic adhesive

tape

It is mainly used for sealing strips system of

rubber.

This adhesive tape has good bonding force

and strong sealing property to avoid clearance

and corrosion because of unstable bonding.

3M 4237P

Adhesive with

primer

——

Different primers are selected for different
materials of bonding surface. The bonding

surface must be clean, the primer is uniformly

applied on the sticky surface via a brush after

completely drying, and the adhesive tape is

pasted after driving. The adhesive tape has

strong adhesive property.

3M C-100、K-500\520、

N-200

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