The black painted border around the perimeter of the auto glass. This painted area serves two purposes. First, is aesthetics, it just looks better. Second, it blocks the sun’s rays from deteriorating the adhesive that structurally bonds the auto glass to the vehicle.
High modulus is a rigidity requirement of cured adhesive. It measures the ability of the adhesive to withstand a variety of stresses and still return to its original form. High modulus adhesives are stiffer than normal adhesives.
A sandwich of two pieces of glass with a PVB layer between them. All front windshields are made of laminated glass. Properly installed windshields cushion an occupant’s head during impact, act as a backboard for the airbags, and provide structural roof support in an accident.
Standard auto glass adhesives are inherently conductive due to the presence of carbon. Nonconductive adhesives are low in carbon and change high frequency antenna impedance. Sensitive electronic signals in some luxury cars require specialized nonconductive adhesives to maintain optimal operating levels.