Ok I was just reading alot of the comments on this Forum and I am going to disagree with about 99% of these comments, mostly because you have no CLUE about glass in general. Pilkington also Previously known as LOF and NSG. For starters Pilkington IS DOT approved if you look at the glass stamp in the corner of your windshield there will be a DOT stamp of 177 which means L-N Safety Glass S.A.DE C.V. Key word in there is SAFETY GLASS. ALL windshields that are made or imported HAVE to be DOT approved meaning that glass meets the Department Of Transportation's requirements. Pilkington is also manufactured in Canada and USA and all Windshields are the same thickness 1/4''. FYI Saftey glass is Laminated glass its a kind of safety glass that is commonly used for automobile windshields. It consists of two layers of glass with a layer of film, called the inter-layer in between them. The glass is designed this way in order to prevent it from shattering into sharp pieces when struck by an object or when the car is in an crash.
The interlayer in the glass is a film of a tough, yet pliable material known as polyvinyl butyral(PVB). In the event that the glass breaks, the two layers are held together by the PVB, allowing the sheet as a whole to bend and absorb the impact. This characteristic is especially important for car windshields since, ideally, the film will keep objects from penetrating through the glass and possibly injuring the car’s occupants. Laminated glass is also used in prisons, jewelry stores, hospitals, and other places where safety or security are paramount. Along with this Pilkington IS the main Manufacturer of 80% of the OEM glass on the market. Pilkington is also the OEM manufacturer of Toyota and Lexus not the OEM rejects as you call it. Its in every single one of our cars. The only reason your OEM glass does not say PILKINGTON is that Toyota/Lexus and every other car company pays a large sum of money to have their OEM stamp on PILKINGTONS glass. One more thing the distortion your talking about is very common. Most windshields are curved glass. SO when the glass is molded the lamination stretches and the glass stretches. Prime example look at a glass coke bottle it is also distorted. WHY? cause its curved glass! You are probably wondering how I know all the vital information well for 1. I am a NGA (national glass association) Certified Master tech and an AGRSS (Auto Glass Replacement Safety Standards) Certified Master Tech. 2. I am factory trained glass tech by Toyota, Lexus, Ford, GM, BMW, Mercedes, and Honda . I have been doing auto glass for 16 years and have owned my own glass company for the past 10 years. SO I hope this helps with the main topic Pilkington vs. OEM... BTW if you do have an issue with Pilkington Glass they are the ONLY company that has a LIFETIME guarantee and Warranty on their glass. So call up the Glass shop that installed your glass and have them replace it with another window..