I bought my weatherstrip a bunch-of-years back from Packard Farm. The glass was cut locally by a firm that seems to have an idea what they're doing.CUt and belt-sanded while I waited to fit.All good. Today,while washing my truck I notice the drivers side is white-fogging at the bottom edge of the windshield. Not what I expected ... What causes this?
Yep, its separating and the plastic between the glass turns white or it will bubble. If you had it recently, see if they will stand behind their work and replace. Worth a try. Tim
Uhh,it's in the garage most of the time? It's not bubbling,but the white,milky line bugs the hell outta me.
Ouch! Those are harsh words... I smeared some clear polyurethane on the edges when we installed the glass a while back. This is the first time this has happened. Where you been Squirrel? Haven't heard you post on here in a while?
Oh, I've been playing with robots... Sorry didn't meant to be harsh. Glass goes bad, some lasts longer than others. I wonder if the urethane affected it?
Robots? I read where you had an underwater mechanical? Is that true? You da man,Squirrel! As per the glass,I've had other laminated adventures(etching and sandblasting display pieces that hung in direct indoor sunlight that have not frosted up.)This is the first that's gotten milky on me?I don't know if washing the truck and allowing water to lay on the weatherstrip milked it up or ? It's garaged and not in long-term UV rays.
I think you just answered your own question.Sounds like the polyurethane is outgassing between the laminations and reacting with the plastic sandwich material.
I had the same problem in my Chevy with a V-butted glass. The Installer used silicone to seal the center. It took about 5 years before I noticed it and you guess it, the glass company had gone out of business after 30 years in the area.
When the fellas belt-sanded the window/windshiled pieces smooth,the one guy told me the heat from the process would melt the the "plastic" and fuse the two panes together-like a really hot cheese sandwich? I've used pieces of their same glass and etched(glassbeaded) designs into it which have hung inside display areas for years.Weather,moisture and abuse haven't fogged them? Must've been the poly treatment? In trying to make things better I've made them worse? It's only the windshield,not the side glass too.
I have a piece of glass thats less than a year old that has already started to fog and it isn't even installed yet. I can understand it on a 30 or more year old windshield but there has to be a common denominator on new glass doing this and some way to prevent it.
I can't explain the new never installed glass doing this, but my experiance with gasket installed glass has always been if you had to fight the glass into the channel, it will eventually turn the plastic white. I figured that stressing it installing it started the separation and time does it's thing. I've put in hundreds of gasketed windows over the years and the problem ones were the ones that went bad. Frank
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