Autoglass Repair - Introduction & Overview

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Windshield Repair Introduction
Windshield Repair Introduction
  1) Introduction


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Autoglass Repair - Introduction & Overview
Learn how to repair windshields with our free course on Windshield Repair. Know which Windshield Repair Kits are available and which kits fit your repair needs.

Be informed by seeing a comparison of the kits and processes before you begin, and be able to determine whether a windshield can be repaired or needs to be replaced.

These kits are used to repair bullseye, spider web, star, chip, and combination windshield damage. Some kits can repair cracks. See kit comparison chart for specifics.

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Windshield Repair Introduction:

This information on windshield repair is provided as a guide to the novice and professional in Windshield Repairs. It is intended to allow anyone to learn how to and have confidence in repairing a damaged windshield. With the information provided on this website, you will understand the types of windshield damage that can be repaired and have a guide in choosing a repair kit to fit your needs.

Understanding how to repair a windshield starts with an understanding of the construction of a windshield and what will be accomplished when using the repair methods demonstrated in this guide.

Windshield Repair Introduction Windshields are laminated safety glass. They are made with two layers of tempered glass with a sheet of polyvinyl butyral (or PVB) plastic sandwiched in-between.

Most stone damage occurs as a break in the outer layer of glass and is visible due to the air that enters the cracks or void of the break. Windshield cracks left unchecked usually continue to grow with an increased growth rate as they get larger until the crack makes its way all the way across the windshield.

The object of a repair to the damage is to fill the break with resin removing the air pocket making the crack no longer visible and strengthening the glass to prevent the crack from getting any larger. Once the cracks are stabilized by the adhesion across the cracks by the polymer rosin they generally will not grow any larger.

Most professional grade windshield repair kits make permanent repairs on most windshield damage such as bullseye cracks, star cracks and windshield chips up to 1 1/4 inches across. There are additional kits and methods that can repair longer chips or cracks up to 12 inches long. Repairs can usually be completed in under an hour with most of the available repair systems. Repairs must always be preformed in shaded areas and on windshields that have been shaded long enough that they are not warm or hot to the touch.

Notes: the optimal windshield temperature for most repair resins is between 50 and 90 degrees Fahrenheit, 10°C to 32°C. Temperatures outside this range on the low side will cause the resins to be too thick and cure or flow too slowly where temperatures above this range may cause the resin to cure too quickly.
Caution: it is important that the resin not come in contact with painted surfaces or any finished surface on the car as it could cause damage to the surface.

Click here to take a free Windshield Repair 101 course to learn more about how to repair windshield damage and the kits available to perform the repairs.