In the US the replacement industry for windshields is a big business. The industry’s worth a whooping $2 billion, according to the US NWRA. With this in mind , it is important to endeavor to understand some of the resins being sold on the market for replacement and repair. In the event that your windshield is damaged, replacement or repair should be undertaken as soon as possible as replacement and repair of auto windshields is about the safety of the vehicle owner as well as other road users. When doing so, it’s important to realize that resins used to cover windshields have been made of toxic chemicals all along. Some of the chemicals used in windshield repair resin fabrication include acrylic acid and methacrylic esters. These chemical compounds, when they come in contact with the body, are known to cause eye and skin irritations. In serious situations where a person is exposed to these chemicals for a long time, as confirmed by the World Health Organization (WHO), the effects may be much more dire as it could potentially lead to cancer and situations of birth defects. Visit us on Mike’s Auto Glass Tampa-Auto Glass Tampa.
The quest for ways to remove these adverse effects on health led to the development of crystalline windshield repair resins containing human-friendly chemical substances. Additionally, there are no corrosive acids in such resins. Crystalline resins have exceptionally high levels of clarity and strength. The NWRA sets those expectations. There are various forms of crystalline windshield tints available on the market. Growing of these tints has a specific use. They cover:
- Amber tint- used in breaks involving crushed or cracked glass as in star breaks and combination breaks to reduce light refraction.
- Blue tint- used at the top of the windshield which is typically blue in colour. It is also used for repairing bull ‘s eyes and breaks in combinations.
- Gray tint- this tint is used in star breaks to camouflage the excess reflectivity.
- Green tint-Some windshields have green fringes on top. Used in such windshields as well as in bull’s-eyes and combination breaks, this type of tint is used.
The ANSI developed the standard that governs windshield repair. Replacement and repair consistency of the windshields is typically dictated by the resin material used. The choice of resin, in turn, is determined by the extent of the damage and the temperature at which the repair will take place.
Besides color, the next significant element is viscosity, which defines the form of crystalline resin to be used.
- Every qualified glass company out there would recommend extremely low viscosity resins as suitable for cold weather. These are also ideal if you require a high sense of optical clarity due to their high properties for hiding and wetting action.
- Medium viscosity resins are best utilized under hot weather. Provided their superior elasticity and adhesion properties, they are also suitable for large combination splits.
- Resins with high viscosity content are used under conditions characterized by excessive humidity. Their enhanced properties of elasticity and adhesion allow them to resist sustained contraction and expansion.