Windshield Repair FAQ


Q. What is probing?
A. Probing is done usually when a leg of a star won’t fill. Use of a probe to flex the glass will generally fix this.

Q. What is flexing the glass?
A. Flexing the glass is when you apply pressure to the glass opening up the damage. This will aid in filling.

Q. How can I tell if a damage has moisture in it?
A. Well, first of all water does not have the same light refraction index as glass. The damage may appear to already be repaired but it will still be visible. Use your probe and apply slight amounts of pressure around the impact point and the damage. You will probably see movement in the damage, this is water. If it has a small amount of moisture in the legs they will appear gray rather than black. Again, use your probe and apply pressure where the damage appears to have moisture and if you see movement, you have moisture.

Q. What should I do if I find moisture?
A. Well it depends on how much. If the damage is wet and it’s obvious, leave it alone and repair at a later date. If it appears to have just a small amount of moisture then I suggest warm from the outside and let cool. Repeat this process until you’re sure all the moisture is gone. I do not believe in dryout solutions and would not use them.

Q. I did not heat the glass and it still flowered. WHY?
A. One of three reasons.
1. It had moisture in it
2. It was a very old damage and the laminate separated
3. Too much pressure was used during the repair

Q. I’m working on a combination damage and there is air against the wall that I can’t get out, what should I do?
A. If you have tried everything you can do with the tools you possess then you only have two options.
1. Cure the damage and drill into the air pocket, fill and cure. However, I do not recommend this procedure.
2. Apply just enough pressure to make the air pocket as small as you can without creating a pressure ring or cause flowering. Then cure under pressure.

Q. I have a leg on this star that won’t fill. What’s wrong?
A. Well you have either an obstruction or the leg isn’t cracked to the impact point. Follow this procedure.
Move your tool out of the way and grab that trusty ol’probe again.
1. Probe the crack and see if it extends to the impact point.
2. If it does, then put your tool back in place and probe the leg where it is not filling and flex the glass. This should do the trick.
3. I’ve probed the leg and it does not reach the impact point. Ok, you now have two choices again.
A. Drill into the leg, fill and cure. I don’t recommend this because it hinders the appearance of the repair.
B. Crack the leg back to the impact point or crack it from the impact point to the leg.

Q. How do I do this?
A. Move your tool out of the way and grab that probe again. Apply pressure from the crack towards the impact point. You may be able to crack it back to the impact point. If this doesn’t work, go to your impact point and probe from your drill hole. Apply pressure against the inside of the drill hole wall with your probe in the direction of the leg and fracture the glass under the surface. If done correctly and with the correct amount of pressure, the glass will fracture under the surface and connect the impact point to the leg. It will then fill easily and clean.