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Volume 7    Issue 5            September/October 2005

TechTips
     helpful hints

ASK the DOCTOR
By Walt Gorman

Q. I am fairly new in this business and have not been through the hot months, but your cold weather tips helped a lot. Can you give me some tips on warm weather repairs?

A. Every weather type presents different challenges and it is important to know the techniques for them all to be a success as a windshield repair 
technician. You must always be aware of the environmental conditions—cold, wet or hot. Each presents unique problems. When working on a hot windshield you must be aware of the possibilities of further cracking or the development of halos and/or daisies.  Generally, a windshield should be considered hot when the air temperature is 85-90 degrees. An old damaged area which has begun to delaminate will “flower” or “daisy” if too much pressure is used. The PVB gets softer as the glass temperature rises. The resin is then forced into the delaminated area surrounding the break and leaves an unsightly repair.  Avoid using too much pressure, even if the break is a relatively new one. When the glass is hot, it is unstable. Owen Green operates in Mississippi and is one of the best technicians and nicest people I know. Green deals with many hot windshields and has customers move their vehicles into the shade before he arrives.  Remember, the heat build-up inside a vehicle with closed windows can easily push the temperature up to 100-110 degrees or more, even though the outdoor temperature is in the 80s. One major cause of the windshields cracking is the temperature variation between the inner and outer layers of glass.

Here are some techniques to cool a windshield:
1. Open all the windows;
2. Place it in the shade or indoors;
3. Spray it with a 50/50 solution of water and alcohol. (Cover the break first.); and 
4. Cool it with the air conditioner gradually. (It’s a good idea to ask the owner to do this.)
Keep yourself and your windshield cool. 

Walt Gorman is the owner and founder of A-1 Windshield Doctor in Seekonk, Mass. He has 17 years experience in windshield repair and runs a training school for technicians. 
E-mail your questions to wgorman@ix.netcom.com.


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