Windshield Replacement-- replace gasket? Sealant? (3 Viewers)

[zapatius]

I used Loctite PL Roof and Flashing polyurethane sealant (it's black) and have had very good results. Fixed my leaks. Flowed very easily. I purchased it at Menards.

 

[flintknapper]

Alright, this thread has prompted me to want to fix my leak--- so I think I am going to order some 3M 08509 windscreen sealer/bedding compound off ebay and give it a go. That does seem to be consensus over the 3M 08609 urethane, right?

At least based on the description in the UK catalog and the 3M data sheet that ehouli found, that seems to be the most logical choice of what is available.

Yes you want butyl (or butyl like) NOT urethane.

 

[zapatius]

Yes you want butyl (or butyl like) NOT urethane.

The Sikaflex 256HV that is in the FSM is polyurethane isn't it?

 

[ehouli]

The Sikaflex 256HV that is in the FSM is polyurethane isn't it?

Yes, but only the regular Sikaflex 256 is available.

 

[sunrk]

My 80 goes in for a full mechanical inspection this coming week. Mechanic told me already that the front windscreen which has a circular crack about the side of a coke can in the primary driver's vision area probably will have to be replaced to pass.



I have a new front rubber (genuine one) but what options exist for glass? I'm guessing there's no oem front glass available and if there was it'd be impossible to get here in Australia. Amayama btw will not ship glass to Australia even if they could get it.

The front glass in the 80 now is aftermarket but actually Australian made. Biggest issue is going to be what's going on with the frame of the windscreen opening when the glass and rubber are removed. I think the rubber is letting water in.



Is there any need to use any sort of sealant when fitting a new windscreen? I'd have thought that with a good genuine rubber that no sealant should be required providing the metalwork of the opening and the paint on the metal is in good condition...

Craig.

 

[ehouli]

Yes, you need Sealant, lots of it, on previous messages there is lot of input, not only it is a mess is a very finicky job, the guy left a little spot without Sealant, I handed him two tubes and used 1 and a half, so I kept the remaining half, the 3M bedding compound doesn't dry and could put some on a syringe to fill the small gap that was left unsealed.

 

[sunrk]

Ok thanks, I'll be getting a professional to do the job since then if I need to get the windscreen frame/opening repaired prior to new glass going in I'll book it into a local body shop.

 

[flintknapper]

Ok thanks, I'll be getting a professional to do the job since then if I need to get the windscreen frame/opening repaired prior to new glass going in I'll book it into a local body shop.

Sealant is a MUST. If it isn't used a leak is guaranteed.

No one will ship windshields because of the high likelihood of breakage.

 

[zapatius]

Ok thanks, I'll be getting a professional to do the job since then if I need to get the windscreen frame/opening repaired prior to new glass going in I'll book it into a local body shop.

Make sure they understand to use the sealant. Several experiences on here of techs being told and STILL not using it.

 

[dpeshkin]

It looks like I will need a new windshield for my 93 80. This is being paid for by my insurance, so they want me to use one of those mobile replacement companies. I am a little leary of those guys, so I am going to watch them carefully. At least they claim to use OEM parts.

So two questions, should I insist that they replace the windshield gasket at the same time? I think my current gasket is original, so it is 13 years old. What is the part number for that gasket? (so I can check up on them).

And what is the correct sealant they are supposed to use?

Anything else to watch out for?

Jared

PS-- called my local toyota dealer, and they don't replace windshields

I just replaced my leaking windshield on my 93. by ordering a new gasket and taking to an auto glass shop. Not a drop of water and its pouring outside.
56121-60100 Weatherstrip, Windshield $67.181
and they need to use urethane sealant i think. not poly.

 

[Malleus]

No problem, thanks for clarifying this point, as I thought it was a bad translation somewhere.

I did find the Third product shown on the SST on the net. Comes in a box with a two little bottles, one of them is Primer and other couldn't find what it is, applicators for the primer and a piece of wire, not cheap, in ebay goes up to almost $60.

Also found the datasheet for the 3M Auto Bedding and Glazing product which goes along the instructions for Windshield installation given by Toyota.

View attachment 2816213

Did you ever resolve the sealing problem to your satisfaction?

 

[Roach15]

Has anyone here had success with rectifying a shoddy windscreen install?

I fell into the same trap of so many, even after following the advice here. I demanded that they put sealant, then had to fight with them to use the correct one, they supposedly drove around the city looking for it. Then when installing I again had to micromanage them to apply it before fitting the windscreen. Then at the end I took the cylinder out of the gun and noticed that they used some generic windscreen sealant. I also think they applied very little but it was hard to tell.

Long story short, I have 3 different leaks, which seem to be coming between the glass and the rubber (not the body and the rubber).

Can I just retrospectively clean the surfaces with alcohol, then pump a bunch of sealant around the edges and hope to plug the leaks?

 

[Malleus]

In theory, yes. However the joint between the old sealant and the new must be nonexistent, which in practice is pretty difficult.

Dupont BetaSeal U-418 is what you want to use:

Your problem is going to be getting a chemically compatible sealant to stick to what you already have in there.

If it was me, I'd just buy a new seal and install it the correct way. It's not hard, it just takes time and a couple of suction cups.

If you're doing this again, remember to get the sealant on the glass and seal, before you install it. Don't try to put it on the body.

 

[Hornd]

Front windshield leaks, caulk fix no good and guys are scared to fix

Safelite replaced my windshield and it leaks, tried the poly caulk fix, nada. Talked to club guys and called who they recommended and was rejected 3 times. They said it is a bitch to do and would not do anymore. Was quoted 276 to do and I provide gasket. Called dealer and they want 800 for an...

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