[bozkm]

On OGTS, the directions say not to use silicon, but a tar based sealant. Non of the parts stores had any (they told me to use silicon), so I called an auto glass dealer..he said he could get me a tube of Urethane sealant..is this what I need?

Also, after putting in the side windows, there is no gap between the gasket and the body. I know I'll screwup and get sealant all over the place if I try to seal these windows. So I think I will roll the dice, and hope they won't leak. My plan is this car will never see the rain anyway...but we know that won't happen. I'm doing the rear window tomorrow..I'm hoping that won't need sealant. Reading here, it seems to be split on whether to use sealant or not. I just may wait to see what happens, before I get sealant all over my new paint. Thoughts?

 

[MikeyOne]

Better than getting wet

I dont like the sealant for the same reasons you dont -= can mess up paint. But without it the rubber is likely to leak in odd places like where there is a seam in the metal.

The sealant (3M Window Weld is one) comes in a calk tube with a pointer application nozzle. The trick is to shove the tip of the nozzle in between the glass and rubber and pull it along (keeping it pushed well into the groove) while the sealant is squeezed in.

Start in a less conspicuous place (bottom of front winshield) and get a feel for how fat the bead of goo can be without squishing out all over. Once you have the hang of it you can do the job without needing to wipe any off the car. Wide masking tape on the paint adjacent to the rubber can prevent the calk gun and applicator from scraping the paint. (Use painters tape).

If you're in a dry state or dont drive in the rain a lot you can do without this. Also keep in mind that withot the sealant water can get into the rubber seal and rot out the metal lip that holds the rubber and glass.

 

[GTJIM (R.I.P.)]

Wet!

For sealing exisiting window rubbers I swear by Selleys "Wet Seal" co-polymer sealant - clear.
It sticks to wet metal and displaces the water - but it will not stick to silicone sealant though - so don't use if you have already "gooped" silicone sealant in there......
It will even stick to oily surfaces so is useful for leaky gasket repairs too.

 

[ging]

Just a thought...

Like you, I would really be ticked if I got sealant on my car but I'm also dealing with a GT with some leaks. It is absolutely the last thing I want to deal with ever again. You can end up with a lovely scent in the car if the carpet and any sound insulation/padding gets wet. Not to mention the damage to any metal not beautifully sealed with paint, etc. If it's possible and carefully done I'd try the sealant.

 

[bozkm]

Thanks. I'm only doing the quarter windows and rear windows. The windshield didn't leak and the rubber was good, so I didn't touch it. Getting inbetween the rubber and the glass seems to be pretty easy..it is the rubber to the car that I'm worried about. On the quarters, you can't shove a chaulking tip there, it is just to tight.

 

[poor gt (R.I.P)]

Looking for any suggestions on sealant, any new ideas, not a big fan of polyurethane and new paint :ugh:

 

[Frozen Tundra GT]

I remember reading with new gasket, we should use no sealant. good ole 100% silicone seems like it would be good though

 

[poor gt (R.I.P)]

That's just it OGTS says not to use silicone, but a tar based sealant, That I might probably find at home depot, roofing or driveway repair :ugh: :yup:

 

[broszzy]

I remember reading with new gasket, we should use no sealant. good ole 100% silicone seems like it would be good though

You definitely want to seal it with a butyl based sealant. NO SILICONE, I have never had a problem with leaks, and it cleans off a new finish very easy.

Pat

 

[poor gt (R.I.P)]

Buytl sealant

Which type do you recommend ? and where can I find it ? Thanks :yup:

 

[Frozen Tundra GT]

haha, when i was away i was thinking butyl. and was checking this thread to suggest it. somebody beat me to it. I am a butyl evangelist for sound deadening....

Why is silicone bad? it can seal a 100 gallon fish tank...

I remember researching this before and reading about some butyl sealant you can get at napa, or sherwin williams. under martin senour or seymour or something name. but then I read some stuff on here that says no sealant at all, by reputable members so I stopped looking into it.

 

[GTRoy]

Brad, You need non-hardening sealer. It's most effective if applied to the gasket
before installing . But it can be squeezed in later if rubber is flexible.
Find an auto body supply store or a auto glass shop for the right stuff.

 

[Frozen Tundra GT]

since I am installing my windshield soon, i did some more research.

amazon has some CRL butyl products. CRL is highly reputable in the glass industry.

Ill be ordering some soon.

 

[broszzy]

Your local hardware store will have a butyl sealant in a caulk tube.

Silicone is great stuff and would work I'm sure, but if you ever need paint work again. Your body shop will hate you.

 

[poor gt (R.I.P)]

Thanks Guy's for all the info. :yup::yup:

 

[hrcollinsjr]

Which type do you recommend ? and where can I find it ? Thanks :yup:

I bought a roll of butyl rubber caulk. The diameter is too large which isn't a problem since it is easily stretched into the diameter that is needed. I think it's easier to apply in this form than it would be to use a caulk gun. I put it on the window lip and then install the windshield with gasket.

Harold