Windshield Repair Forum

Bad day to day, I had an unrecoverable breakout during a repair. I was doing a repair job on a Honda CRV with 5 hits on it, I had repaired 2 successfully but hit trouble on the third. The damage was a small half moon sited at the centre of the screen about 1/4" above the obscuration band at the bottom of the screen and its position was the cause of the problem. When I started on the car the sky was overcast and the temperature was approx. 8 Deg C. Just before I started the third repair the Sun came out. About a minute into the repair process I noticed a crack starting to run from the damage and before I could reach to take off the pressure it broke out a foot up into the screen and down to the bottom edge. I think I said something like "Oh Dear " loosely translated. Obviously it was a stress problem but I had repaired 2 chips already on this screen, which were in a similar position, with no problems at all. I felt the screen temperature and immediately found that the glass in the obscuration band was warmer than the clear glass above it. So the cause of the problem was the black obscured glass absorbed the heat from the Sun and warmed up quicker than the clear glass. Therefore uneven expansion and high stress, just at the point where I was doing the repair.
I felt the areas on a few other cars that were close to me and sure enough the same effect was happening on the screen. There was a discernable difference between surface temperature of the glass covering the obscuration band and the adjacent clear glass but after approx. 10 minutes it seemed to even out. A lesson learned albeit the hard way.

This must be Honda & Toyota month. Almost all the calls I've been on the past few weeks have been one or the other. I Had a 1/2 inch star break with 2 one inch legs start to spread when i set my bridge up today. I backed off the pressure quickly. It too was in the band on the top corner of the passenger side of the Honda Pilot. It filled nicely. I wasnt sure if I should have drilled at the ends of the legs or not. I left the bridge on a little longer and the WS was at 79.3 dgs. It was a overcast day at 59 dgs. If I've learned anything from this forum, its sometimes best to allow the bridge to do the work and give it time. I am glad to know that Iam not the only one that has this problem form time to time.

Hey it happens to the best of us it had been a couple years for me but last week I fixxed a Pathfinder did the repair cleaned the glass was packing the box when I heard the dreaded CRACK noise looked back to see one all the way from end to end. My guess is a replacement that was a little uneven but who knows fortunatly it was at a customer I do quite a few at so I sent my replacement guy and paid for it. I make enough there in 2 stops to pay for it and felt it was better to just take the hit and ensure I keep coming back. Happy customers are important

GlassStarz wrote:Hey it happens to the best of us it had been a couple years for me but last week I fixxed a Pathfinder did the repair cleaned the glass was packing the box when I heard the dreaded CRACK noise looked back to see one all the way from end to end. My guess is a replacement that was a little uneven but who knows fortunatly it was at a customer I do quite a few at so I sent my replacement guy and paid for it. I make enough there in 2 stops to pay for it and felt it was better to just take the hit and ensure I keep coming back. Happy customers are important

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