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Bonding glass to metal.
Jon Ison - 8/1/17 at 06:44 PM

Evening all, long time no post.

I need to bond metal to glass, what do you guys recomend?


rusty nuts - 8/1/17 at 06:48 PM

Depends how large a part you need to bond but Loctite do a kit for bonding interior mirrors to windscreens that is far better than anything else i've tried ,


loggyboy - 8/1/17 at 07:04 PM

Windscreen sealant would appear most likely candidate.


ralphy - 8/1/17 at 07:32 PM

Sikaflex is widely used for both original screens at the factories and also replacement ones.

Sika Flex Sikaflex 255FC adhesive body kit windscreen

R


jacko - 8/1/17 at 08:03 PM

Jon you can get a sikaflex kit that has all the primers and /buds /and sealer we use them at work for bus screens
graham
we use this too
http://www.dowautomotive.com/pdfs/interim/299-51670.pdf

[Edited on 8/1/17 by jacko]


PSpirine - 9/1/17 at 10:01 AM

At work (automotive OEM), Sika sealant is used (not sure if it's Sika 555, but if not it's similar to that) for bonding windscreens.
It is primerless i.e. single shot application. That's used for both initial bonding and if any re-glazing is required.

You can get Sika sealant quite easily even though it's not exactly cheap. Depending on the application I'm sure any similar alternative will do the job.

Try to keep it off your hands though... it's nearly impossible to get off and has been known to cause some skin reaction.


Neville Jones - 9/1/17 at 11:32 AM

Toolstation do a thing called Puraflex 40. Another used in marine industry is 3M 5200.

It's a polyurethane adhesive/sealant similar to the Sika stuff. I've used it for a long time with no problems.

Sticks like the proverbial to a blanket.

All of the PU sealants that I've come across will come off with white spirit/turps/panel wipe, before it starts to cure. Don't try acetone or similar, as it makes the problem worse.

Cheers
Nev.


rgrs - 9/1/17 at 11:41 AM

U.V. cure glass glue


Ugg10 - 9/1/17 at 12:56 PM

IIRC when I bonded in the windscreen in my Fury I had to etch the glass first then brush on a light coat of some rubberised stuff and then bond it in with black adhesive. Looks like things have come on in the last 15 years if you can just stick it on without the etch etc.

The trick to all bonding is good surface prep, make sure it is very clean (we used to use an acetone ultrasonic bath but that is probably banned now !) and has some roughness.


pekwah1 - 9/1/17 at 04:09 PM

whatever happened to everything can be fixed with duct tape?


rusty nuts - 9/1/17 at 06:23 PM

I remember a ball of duct tape stuck to the roof of an Islander plane that was used for skydiving so that jumpers could climb out as a group to exit the aircraft. On more than one occasion it fell off when being used.