Gville350

iTrader: (10)

'06 IS350 with sports pkg w/ NAV (non-ML).

babaliont

The sales rep got back to me today. He's spoken to their parts department and said acoustic interlayer is not an option on the Lexus factory windshields (?) and none of the IS on his lot have acoustic interlayer.

At this point, I'm willing to let the issue go. I think I got a quality replacement that was installed well.

synrgy350

Yeah I looked through my sales brochure for my IS 350 and it does not mention acoustic glass. Also looking at my 1998 es300 glass, it also has the bolt symbol identical to the picture on the first page of this thread. I think that symbol means UV protection, not acoustic. That option should not have existed in 1998.

babaliont

ok, thanks for the confirmation! It looks like acoustic interlay is available only on the higher end models, like the LS460 and the GS hybrids.

tboo72

Im pretty sure the LS models were the only ones who had the acoustic glass option.

Joeb427

iTrader: (1)

The ES,RX and GS has acoustic windshields.

nosurprise

iTrader: (1)

They may follow the same specification, but they're not as good. For example, the Lexus specification might say the edge distortion cannot exceed 1" and the manufacturers will produce glass with 1" of distortion and will meet specifications. However, Lexus branded glass will likely have 0.5" or less distortion.

To OP, if you can't tell the difference or doesn't bother you, don't get it replace again. I had different windshields before and I can tell some difference but it's not that big. As some others have said, it does pit very easily -- I'm not sure how others perform. Also, my Lexus windshield doesn't have the symbol.

tboo72

If they do not follow the Lexus specs, then they cant be called OEM. Now you might see a slight visual difference between the original OE glass and an OEME glass due to the fact that they are two different manufacturers but in the end the OEME meets the same specs as OE. Safelite, an aftermarket glass, isnt OEM so it can deviate from manufacturer specs.

nosurprise

iTrader: (1)

Right, I'm not saying they don't meet the specs. And yes, I agree the other aftermarket glass manufacturers might be worst.

tboo72

What amazes me is how much car manufacturers jump around to different glass companies. My IS350 had a Nippon SG OE windshield before I got it replaced. I see some others on this board have Asahi OE glass. Ive seen BMWs with OE PPG and Pilkington.

synrgy350

Its whoever can supply the cheapest parts at the specifications required by the manufacturer. When I was working for Toyota, we went from PPG to Pilkington one year because they were able to provide the glass to the factory cheaper than PPG could. At the end of the day, its whoever is available locally that is the cheapest.

srt4evah

Bumping a 10-month old thread, but just to add something to the topic, the OEM IS glass sold by Sewell says it has an inner acoustic layer and on the picture they have of the stamp on the windshield you can clearly see it says "AS-2" which indicates it is acoustic glass.

http://is.sewellparts.com/accessorie...2008/4846.html

flowrider

iTrader: (9)

^^^^I just checked my Genuine OEM replacement glass, bought through a dealer and it's marked AS1.

Edit - I just did a google search, and what you're saying is not true.

Lou