To glue the windshield glass to the opening, use:
- glue-sealant "Terosat-8590" 1NU - ultra-viscous one-component black sealant based on polyurethane, characterized by a high polymerization rate under the influence of air moisture with the formation of a rubber-like material
Before application, the adhesive can be heated to a temperature not exceeding 35 ° C;
- primer (primer) "Terosat -851 1" for glass;
- primer (primer) "Terosat -8521" for the painted window opening;
- solvent "Nefras sch-155/200" for degreasing bonded surfaces.
Primers are black polyurethane-based liquids containing a solvent.
For glass replacement:
- remove the wiper arms from the body, the polypropylene lining of the front end - side and lower (around the glass), the lining of the inclined pillars and the instrument panel extension (in the cab);
- punch a hole in the adhesive layer between the glass to be replaced and the opening in an accessible place; pull a wire (20.2 mm in diameter, 0.7–0.8 m long) into the hole, cut off the glue along the perimeter of the glass and remove the glass.
You need two people to cut the glue.
Inside the cabin, the wire must be held in a fixed position, outside, pulled along the perimeter of the glass;
- use a knife to level the adhesive remaining on the window opening, leaving a layer of at least 1 mm thick on it.
Adhesive remaining on the opening serves as an ideal base for adhesion with liquid polyurethane adhesive;
Rice Degreasing the bonded surface
- degrease the window opening and glass with a napkin moistened with galosh gasoline and allow an exposure of 5-10 minutes to completely evaporate the gasoline;
- shake the vessel with the Terosat-8521 primer for 2-3 minutes to completely mix the composition and apply a primer strip 23-25 mm wide with an applicator or a soft brush on the window opening (on those areas where there is no cured glue left ).
Let the exposure time be at least 5 minutes for the primer to dry completely;
- install sealant 4 on the upper edge of the glass on the lower two stops 1 (at a distance of 400-500 mm from each other);
Fig. Windshield glass installation: 1 - emphasis; 2 - adhesive layer; 3 - glass; 4- seal
Fig. Applying a primer to the glass surface to be glued: 1 — glass; 2 - primer; 3—emphasis
- shake the vessel with the primer - "Terosat -851 1" for 2-3 minutes and apply a primer strip 23-25 mm wide on the glass surface with an applicator or a soft brush.
Let the exposure time be at least 5 minutes for the primer to dry completely;
- unscrew the nozzle from the cartouche with "Terosat -8590" glue and make a cutout in it
- separate the bottom of the cartouche with glue with a knife, pour out the moisture-absorbing powder;
- pierce a hole for the glue to come out of the cartouche, screw on the nozzle;
- install the cartouche with glue in the device and apply glue on the glass surface in the form of a bundle with a height of at least 10 mm, stepping back from the edge of the glass, sealant and stops by 5-7 mm.
- no later than 15 minutes after applying the adhesive, install the glass in the window opening (together) so that the upper edge of the glass with the seal on rests against the upper edge of the window opening flange;
- fix the glass for 2 hours with rubber bands, threading them around the uprights inside the cabin (with open doors);
- after 5-6 hours, check the tightness of the glass installation,
- pouring water from the outside with a hose around the perimeter of the glass, if necessary, smear the leaks with mastic 51-G-7K:
- install the removed parts on the body.
Removing and installing windshield in detail in pictures
We do the work together.
Remove the inner upholstery of the windshield pillars and the lining of the outer front panel.
Using a screwdriver, we unscrew the four self-tapping screws securing the outer lining of the windshield pillar
Remove the overlay.
Remove the seal from the upper edge of the glass.
We pierce the adhesive seam with an awl or a thick needle.
We pass a steel string through the puncture
We attach handles from improvised materials to its ends
We stretch the string and, working with it like a two-handed saw, we cut the glue line around the entire perimeter of the glass.
We cut carefully, without damaging the paint on the body, the upholstery of the ceiling and the instrument panel.
There are two rubber stops under the lower edge of the windshield.
They provide a uniform gap between the glass and the body.
Save them when removing the glass.
Instead of a string, you can use a wire from a semi-automatic welding machine.
Having removed the windshield, cut off the excess of the old adhesive seam with a sharp knife, leaving a layer 1–2 mm thick.
To paste new glass, we use a special kit and a “gun” device for squeezing glue out of the tube
If there is no fixture, then the glue can be squeezed out, for example, with a hammer handle.
Cut off the tip of the tube nozzle and make an angled cut, as shown in the figure.
We put a sealant on the upper edge of the glass, and two stops on the bottom.
We degrease the edge of the glass on the side that will be adjacent to the opening, and the remaining adhesive layer on the window opening.
We apply a primer (primer) to the edge of the glass along its perimeter and to the opening of the body.
Squeeze out the glue from the tube along the edge of the glass, stepping back from the edge of 6–7 mm
The glue is applied around the entire perimeter with a continuous roller 10–12 mm high
We apply the glass to the window opening, making sure that the gaps with the mating body panels are uniform and that the seal fits the body panels correctly.
Having opened the doors, we wrap a cloth tape or cord several times around the cab pillars.
We put two tire chambers under the tape on both sides of the glass.
If the tape is thin, we put wide wooden planks under it over the cameras.
We inflate the cameras so that the glass is pressed tightly against the opening.
The polymerization of the adhesive continues for several hours (see the instructions that came with the glue).
During this time, the car must not be moved, the door windows closed or slammed, as any increase in air pressure in the car interior can cause the glass to break.
After waiting at least 6 hours, remove the cameras and ropes.
We pour water from the hose outside onto the glass around the entire perimeter. In case of leakage, we lubricate the leaks with sealant.
It is possible to operate the car after gluing the glass no earlier than 24 hours