Seeling back glass
What do I use to seel the back glass? I know what NOT to use (Window weld) but note sure whatto use. Also, does the glass go in, then the molding clips, then the seeler, the the molding on? Thanks.
The correct sealant is urethane, you can buy some from almost any autoglass store. Unless it's primerless urethane, u will need to "prime" the edge of the bottom portion of the glass that will be in contact with the glue (urethane).Just ask the place u buy the urethane from for some primer too. If the pinchweldhas rust or new paint on it, you want to prime itas well.
The clips go on first. If they are fitting tight take a flat head screwdriver and stick it inbetween the clip and the body and pry out just a bit so there is a little play. This will allow the moldings to snap into place without a big fight.
Next put the urethane onto the center of the pinchweld. Cut a notch in the plastic tip that look like a "V". This will give the glass a bit of heighth; you don't want it sitting flat on the pinchweld because the clips dictate how high the mouldings will lay and you don't want a gap. Allow the urethate to set up for a minute or two untill it becomes tacky.
Put rubber stops at two places along the bottom of the pinchweld. They will act as stops when u set the glass in the hole so the glass doesn't slide down and rest on top of the clips. You can pull them out once the glass is in the right spot. You may want to run some tape stips vertically along a couple place on the top to keep the glass from sliding down once the rubber stops (which u should be able to get at the same place u get the urethane). Have a friend help set the glass.
Put moldings on.
edit: it just occured to me you might have a gasket. If so it's a bit different.Don't want to get into right now cause it'searly here and time to drink coffee.
The clips go on first. If they are fitting tight take a flat head screwdriver and stick it inbetween the clip and the body and pry out just a bit so there is a little play. This will allow the moldings to snap into place without a big fight.
Next put the urethane onto the center of the pinchweld. Cut a notch in the plastic tip that look like a "V". This will give the glass a bit of heighth; you don't want it sitting flat on the pinchweld because the clips dictate how high the mouldings will lay and you don't want a gap. Allow the urethate to set up for a minute or two untill it becomes tacky.
Put rubber stops at two places along the bottom of the pinchweld. They will act as stops when u set the glass in the hole so the glass doesn't slide down and rest on top of the clips. You can pull them out once the glass is in the right spot. You may want to run some tape stips vertically along a couple place on the top to keep the glass from sliding down once the rubber stops (which u should be able to get at the same place u get the urethane). Have a friend help set the glass.
Put moldings on.
edit: it just occured to me you might have a gasket. If so it's a bit different.Don't want to get into right now cause it'searly here and time to drink coffee.
Tryin to remember; its been awhile, but here goes. As I recall, you need to put the gasket on the glass, then rope it in, in order to get the bottom lip of the gasket around the pinchweld. Keep in mind you need to seal the glass to the gasket, and the gasket to the pinchweld. Some might say the gasket should be self-sealing to the pinchweld, but my experience is more often then not they will leak and then you have to pull the molding off to seal it, therefore I suggest doing it the first time. Also, make sure the inside of the gasket is clean of dirt and debris.A small amount of solvent is great for cleaning them out.
No need for primer for this application as long asthe pinchweld in not rusty. One way that should work is to rope it in, then seal the glass to the gasket by using a pointed tip on the tube of urethane.Get the tip between the outside of the gasket and the top of the glass. Run a small bead in there all the way around. If there is excess oozing out (and there should be some) a razer blade is excellent for removing it.
Next, get the tip inbetween the outside of the gasket and the pinchweld. Apply a bit more generous amount all the way around. Its ok if some gets up agaist the clips; just don't want to glue the moldings to the clips. Use your finger or a popsicle stick to mash the urethane towards the bottom of the outside of the gasket and the pinchweld.
Put moldings on.
I hope this makes sense, and also invite others to chime in if they have a different method.
No need for primer for this application as long asthe pinchweld in not rusty. One way that should work is to rope it in, then seal the glass to the gasket by using a pointed tip on the tube of urethane.Get the tip between the outside of the gasket and the top of the glass. Run a small bead in there all the way around. If there is excess oozing out (and there should be some) a razer blade is excellent for removing it.
Next, get the tip inbetween the outside of the gasket and the pinchweld. Apply a bit more generous amount all the way around. Its ok if some gets up agaist the clips; just don't want to glue the moldings to the clips. Use your finger or a popsicle stick to mash the urethane towards the bottom of the outside of the gasket and the pinchweld.
Put moldings on.
I hope this makes sense, and also invite others to chime in if they have a different method.
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tj@steeda
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