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Re: Unusual Repair on Tinted Glass
Posted: August 19th, 2012, 12:17 am
by screenman
Mr Bill maybe I did not use the best words but here goes. The crack is under pressure to run, could be for many reasons, now by drilling the hole I feel and so do experts in may other fields that use this technique that the drilled hole releases pressure in that area of the material.
Drilling to help stop cracks is used in many fields, metals, alloys, iron, concrete and so on.
Re: Unusual Repair on Tinted Glass
Posted: August 19th, 2012, 11:42 pm
by pommy
...how do you know exactly when the end of the long crack is filled? when often it is beyond the perceived end.
Precisely.
I always make a bulls-eye at the end of a crack to terminate it. I can tell the customer 100% sure that it won't run any further.
A few older techs in my area, simply make a drill hole - but as the bulls-eye I make is only the size of a match head and it's fresh, it vanishes to about 95%, so why try to "aim" a crack at a pin hole?
If you use the drill hole method, it's quite likely that the crack will "miss" from time to time - making the finished repair worse.
The bulls-eye is much easier to run the crack to than a bur hole.
Happy dayz
Pommy