Mazda MX-5 2007 Bodyshop Manual page 144

4. Sand the surface of the polypropylene gradually as it is easily melted by the abrasion heat. Sand the area to
which repair agent will be applied.
Sand gradually
5. Uniformly apply polypropylene primer with a brush to an area larger than the repaired area. Allow to dry about
10 minutes at 20 °C {68 °F}.
Larger than repaired area
6. Mix the main agent and the stiffening agent in a ratio of one to one. Apply the mixed repair agent to the
damaged area.
Note
• When mixing the main and stiffening agents, take care not to allow bubbles to form.
• The repair agent hardens quickly (about 5 minutes); proceed with the work immediately after mixing the
agents.
• Allow about 30 minutes to dry (20 °C {68 °F}) before sanding.
The repair agent is a two part epoxy adhesive.
When the repair agent hardens, it will provide a good finish with the same flexibility as the polypropylens.
The repair agent for a urethane bumper is also a two part adhesive compound. However, this is different from
that for a polypropylene bumper. If the incorrect repair agent is used, the repair will be faulty.
09-80E–6
BODY STRUCTURE [PLASTIC BODY PARTS]
Repair agent
Weld
Sand repair area
Paint
Polypropylene primer
Do not mix air
Polypropylene surface
YMU980PCX
YMU980PCY
YMU980PCZ