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: Correct butyl tape for 70 front & rear window 1Quik7D Oct 6th, 02, 11:38 AM I'm ready to put the windshield and rear glass back into the '70. What's the correct size (thickness)of butyl tape? I have a roll of 3/8, but I want to make sure that I have the right stuff so that the window chrome will fit correctly. Thanks Ricky-G Oct 6th, 02, 12:16 PM I have always used 5/16 butyl tape,I tried 3/8 once and it seemed to cause problems with getting the chrome trim on.It made the winshield sit a bit to high up. 72sselcamino Oct 6th, 02, 1:23 PM I'm not the expert here, but I've read on this site that the 3/8 was for late model's with thinner glass, and the 5/16 is correct for our classic's. Cal MARTINSR Oct 6th, 02, 2:07 PM The thing is if your windshield has been replaced it is likly the newer thinner glass and will require a 3/8" kit. ------------------ 1965 Buick Gran Sport Convertible 1965 Buick Skylark H/T "Fan of most anything that moves human beings" JeffK Oct 6th, 02, 5:45 PM While on the subject, what are the advantages of using butyl tape over the sealer that comes in a cualking gun type tube. I had a local glass company install a new windshield in my '68 and they used the caulking gun style sealer. Everything seems to fit together good. Thanks ------------------ JeffK ACES #01510 Team Chevelle Gold #72 68 350/700R4 Ragtop (http://www.72chevelle.com/jeffk/68ragtop.JPG) 72 496/Richmond 6-Speed Jeff's Chevelle Page (http://www.72chevelle.com) 1Quik7D Oct 6th, 02, 11:49 PM How do I know if I have the newer (thinner) glass? I've owned the car since 1985 and its had the same windshield. It's possible that the winshield was replaced prior to that though. Is there a good way to tell if its not the original? JeffK, I've heard alot of bad things about using the caulking type sealer on the older cars. I do a search and see what you find. | ||