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  #1  
Old Jun 17th, 12, 1:18 PM
SVC707 SVC707 is offline
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Default help on repairing rust around windshield mounting surface

hello, im looking for ideas to repair the rust surface where the windshield mounts. there are no holes just the surface as seen in the pictures. ive got rage extreme filler or metal glaze if thats all i need to do?

thanks



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  #2  
Old Jun 17th, 12, 1:53 PM
Bikerman9967 Bikerman9967 is offline
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Phil
 
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Default Re: help on repairing rust around windshield mounting surface

I'd wire wheel that out the best you can then hit it with some 80 grit then prime. Looks like its still mostly window glue.
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  #3  
Old Jun 17th, 12, 2:19 PM
Raven1 Raven1 is online now
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Scott
 
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Default Re: help on repairing rust around windshield mounting surface

All the rust has the be removed. If you can't sandblast it which is the preferred method, use a strip disc or heavy wire wheel. Then multiple treatments with phosphoric or naval jelly till it's gone. If you find holes repair them by welding or patches. Epoxy and don't prime. That's another subject regarding glass replacement.
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  #4  
Old Jun 17th, 12, 2:36 PM
CoolBlueGlow CoolBlueGlow is offline
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Default Re: help on repairing rust around windshield mounting surface

+1 on what Scott said...and almost guaranteed that you will find some pinholes deep in the rust pits.

Keith
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  #5  
Old Jun 17th, 12, 3:05 PM
oldtimeparts oldtimeparts is offline
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Default Re: help on repairing rust around windshield mounting surface

I would hit it with a wire brush first and the sand blast [if you don't have a sand blaster go to Harbor Freight or Sears and get a hand held spot blaster $20.00?] if there are no pin holes I would use POR 15 and give it a couple coats and ready to go.

http://www.harborfreight.com/21-oz-h...gun-95793.html
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  #6  
Old Jun 17th, 12, 3:10 PM
Raven1 Raven1 is online now
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Default Re: help on repairing rust around windshield mounting surface

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Originally Posted by oldtimeparts View Post
I would hit it with a wire brush first and the sand blast [if you don't have a sand blaster go to Harbor Freight or Sears and get a hand held spot blaster $20.00?] if there are no pin holes I would use POR 15 and give it a couple coats and ready to go.

http://www.harborfreight.com/21-oz-h...gun-95793.html
Forget the POR, Clean metal deserves epoxy, a professional product. Why do so may want to put POR on clean or new metal? Is epoxy junk? Must be crap if that's what resto and bodyshops use.
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  #7  
Old Jun 17th, 12, 3:45 PM
SVC707 SVC707 is offline
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Default Re: help on repairing rust around windshield mounting surface

are you guys talking about a spray on or brush on epoxy paint?



http://www.tcpglobal.com/spraypaintd...oxy-paint.aspx
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  #8  
Old Jun 17th, 12, 5:00 PM
Raven1 Raven1 is online now
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Default Re: help on repairing rust around windshield mounting surface

Not aerosol, real 2 part epoxy (2K) that's sprayed with a gun. 2K means it has a hardener. I can only assume you have little or no bodywork or product knowledge, no offense. Time to study.....a lot.
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  #9  
Old Jun 17th, 12, 5:51 PM
65300dlux 65300dlux is offline
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Default Re: help on repairing rust around windshield mounting surface

Sandblasting is the way to go,then scotchbrite the channel to remove the blast residue. If you don't have a gun, or are just needing a small amount of 2K epoxy, you could use this 2 part.
May not meet the "pro standards", but it worked well on some small stuff I did when I didn't want to buy a full quart just to use 8 ounces.
Good luck!
http://www.repaintsupply.com/pd_2_part.cfm
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  #10  
Old Jun 17th, 12, 7:22 PM
SVC707 SVC707 is offline
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Default Re: help on repairing rust around windshield mounting surface

I saw that 2-part in a can. Just wasn't sure what was being recommended
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  #11  
Old Jun 17th, 12, 9:07 PM
kidpaint kidpaint is offline
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Default Re: help on repairing rust around windshield mounting surface

Im confused, when you say dont prime and to epoxy? Isnt epoxy primer a primer?

I would agree, with everyone. do your absolute best to make sure that the rust is removed and any pinholes or questionable spots are fixed. Sandblasting is the best way to do this.

Here is some advice for later down the road. I have worked closely with a window installer. ( I am not one though) You can prime and paint, but dont clear the window area, after the rust has been removed. Tape off where the window adhesive will go when clearing. Some adhesives can loosen the clear from what I have been told.
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  #12  
Old Jun 17th, 12, 9:22 PM
Raven1 Raven1 is online now
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Default Re: help on repairing rust around windshield mounting surface

Quote:
Originally Posted by kidpaint View Post
Im confused, when you say dont prime and to epoxy? Isnt epoxy primer a primer?

Here is some advice for later down the road. I have worked closely with a window installer. ( I am not one though) You can prime and paint, but dont clear the window area, after the rust has been removed. Tape off where the window adhesive will go when clearing. Some adhesives can loosen the clear from what I have been told.
I said epoxy only because glass installation methods suggest urethane over epoxy only and not primer. I don't cosider epoxy a primer like urethane build primer, it's a precoat. Although some people like to use epoxy as a filler primer. They do not sand like filler primers.

Read the sticky on glass, plenty to keep you busy there. You can chime in and add to it. Loosening the clear has nothing to do with it. It does not soften the clear.
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  #13  
Old Jun 17th, 12, 10:40 PM
davis95 davis95 is online now
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Default Re: help on repairing rust around windshield mounting surface

I totally agree with the epoxy method. Although epoxy may be technically called a primer, it is actually a rust barrier. You can take a completely rusted panel and seal it with epoxy and never see rust again as long as it is completely sealed on all sides. If you epoxy an area that you have have no access to the back side of then you can still have rust-through from the untreated side.
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  #14  
Old Jun 18th, 12, 8:34 AM
Bikerman9967 Bikerman9967 is offline
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Default Re: help on repairing rust around windshield mounting surface

Quote:
Originally Posted by Raven1 View Post
Forget the POR, Clean metal deserves epoxy, a professional product. Why do so may want to put POR on clean or new metal? Is epoxy junk? Must be crap if that's what resto and bodyshops use.
i think most do-it-yourself guys see the por-15 as a good way to help keep their cars from rusting more. most starting out don't have access to tools like sandblasters and spray booths. or even things like an air compressor that has enough cfm to run some of these tools.. butttt they like to work on thier cars the best they can with what they got. im not a por-15 guy nor do i recommend laying it in a window channel, but if someone cant completely strip rust out of an area i understand why they would want to use por-15
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  #15  
Old Jun 18th, 12, 10:21 AM
Raven1 Raven1 is online now
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Default Re: help on repairing rust around windshield mounting surface

Quote:
Originally Posted by Bikerman9967 View Post
i think most do-it-yourself guys see the por-15 as a good way to help keep their cars from rusting more. most starting out don't have access to tools like sandblasters and spray booths. or even things like an air compressor that has enough cfm to run some of these tools.. butttt they like to work on thier cars the best they can with what they got. im not a por-15 guy nor do i recommend laying it in a window channel, but if someone cant completely strip rust out of an area i understand why they would want to use por-15
Phoshoric acid or Naval Jelly will remove the rust, no need to cover it up with POR. This is a window channel and glass installation requires proper procedures are followed.

You don't need a commercial sanblaster or spraybooth to prep the channel. Hand held spot blasters are cheap. Jobbers have them. Clean Strip discs and wire wheels too.
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