0720IN Glass Repairs

WM 0720IN Glass repairs

Conditions for repairs

NOTICE

Stress from a stone chip on the inside of the window

- Crack in the windscreen

-> Do not press against the stone chips in the window from the inside.

Information

This repair method is a cost-effective repair that may have quality implications. To achieve the best repair result, always use the tool recommended by Porsche and attend the special training courses put on by the tool/system suppliers.

It is only permitted to repair laminated glass in windscreens under the following conditions:
- Damage in the driver's field of vision (30 cm wide in the wiper area -X- ) and at the edge of the windscreen (10 cm -Y- ) must not be repaired. => Driver's field of vision





Driver's field of vision

- It is only permitted to repair damage to the outside of the windscreen. There must be no damage to the inner pane or plastic film.

- The repair must be carried out as soon as possible after the damage occurred. There must be no moisture or dirt that has visibly penetrated into the damaged area.

- The crater of the point of impact must not exceed a diameter of 5 mm.

- Cracks extending radially from the point of impact must be no longer than 50 mm. => Stone chip with crack





Stone chip with crack

A visible spot of around 1 - 2 mm in diameter will remain following the repair. => Repair result





Repair result

The following damage can be satisfactorily repaired economically using this repair method:
- Bull's eye: restoration of appearance 90-99%





Bull's eye

- Bee wings: restoration of appearance 90-99%





Bee wings

- Star break: restoration of appearance 80-90%





Star break

- Shattered break: restoration of appearance 70-80%





Shattered break

Preparation

1. Clean area of damage
1.1. Use a dry cloth (without any window cleaner) to clean the windscreen around the area of damage, but do not wipe across the area of impact itself.
1.2. Remove loose splinters of glass out of the chipped area using the hard metal stylus, but do not enlarge the impact crater unnecessarily. => Exposing stone chip
Please note: The more glass missing from the chipped surface, the more obvious the blemish after the repair.





Exposing stone chip

2. Securing the mirror
Apply gel to the suckers of the inspection mirror and attach the mirror to the inside of the windscreen so that the procedure can be monitored from outside. => Securing mirror





Securing mirror

3. Drilling hole
If necessary, use a drill to mill glass splinters and dirt out of the impact hole to a depth of approx. 1 mm.
Please note: Always hold the drill firmly with both hands! This is the only way to ensure the drill is positioned securely.





Drilling out stone chip

4. Securing the bridge
4.1. Rub gel into the sucker on the bridge. This allows the tool to be repositioned after it has been secured in place.
4.2. Press bridge -1- firmly onto the windscreen so that the threaded hole is directly above the point of impact.
4.3. Stick bridge firmly onto windscreen by operating the vacuum pump until the red mark -2- is no longer visible.
Please note: The bridge must remain firmly seated on the windscreen for the duration of the repair. Operate the pump again if the red mark becomes visible.
4.4. Align bridge directly over the point of impact with respect to the windscreen and secure it in place using the central screw -3-.
4.5. Adjust bridge so that it is parallel to the windscreen using the screws at the rear -4-.





Securing bridge

Repair procedure

1. Equipping bridge
1.1. Screw injector with seal -5- into the bridge until the seal is touching the glass. Then press the injector against the window by completing one more turn.





Screwing in injector

1.2. Attach needle to syringe and fill with approx. 0.15 ml of resin. => Filling syringe





Filling syringe

1.3. Inject resin into the injector. => Filling injector





Filling injector

2. Pressurising phase
2.1. Slowly screw plunger -6- into the injector -5- until resistance is felt and the shape of the seal changes => Seal under pressure. Keep a firm hold on the injector barrel while doing this.
2.2. Leave the plunger pressed down in this position for around 5 min., in which time the plunger will automatically build up pressure.





Building up pressure





Seal under pressure

3. Vacuum phase
3.1. Use one hand to lift the plunger -6- ( -A- ) and secure in position by turning 90° clockwise -B-. This allows any air to escape out of the area of damage.
3.2. Release plunger so that pressure is able to build up again.
3.3. Repeat steps => 3.1. and => 3.2. about 5-10 times until there is no more air in the chipped area.





Building up vacuum





Seal under vacuum

4. Heating
If the damage is more severe, the removal of trapped air can be speeded up by warming gently. To do this, use a lighter to heat the area of damage from the inside for 3-5 seconds.
Please note: Heat during the vacuum phase only, otherwise the expanding air would cause excessive pressure in the damaged area.
5. Removing the bridge
5.1. Release the plunger a little (do not create a vacuum) and unscrew the injector.
5.2. Remove bridge from the windscreen.
6. Applying finishing resin
6.1. Add a drop of finishing resin directly onto the impact point.
6.2. Slide film across the windscreen.





Applying finishing resin

7. Curing under a UV lamp
7.1. Place a UV lamp over the area of damage from the outside and switch on. => Curing under a UV lamp
7.2. Curing takes around 10 minutes, depending on the size of the stone chip.





Curing under a UV lamp

8. Scraping off repair resin
8.1. Remove film and scrape off excess resin using a razor blade held at a 90 degree angle to the windscreen. => Scraping off resin
Please note: Risk of damage to the windscreen. Only use razor blades that are in perfect condition, otherwise they could damage the windscreen.
8.2. If there is still an indentation at the point of repair, steps => 6., => 7. and => 8.1. will need to be repeated to obtain a perfect finish.





Scraping off resin

9. Polishing
Polish the repair with polish and a soft cloth.
Please note: Do not polish for too long as this can wear down the repair resin and the surface will no longer be flat.





Polishing

10. Cleaning the tools
After completing the repair, clean tools using a dry, lint-free cloth. The resin will otherwise perish the seals.