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Windscreen rubber trim bonding

Posted: Tue May 27, 2008 11:35 pm
by phils
After a few experiments I have found a way to get a very secure bond between the windscreen rubber surround and the glass.

First clean the area with alcohol ( meths etc) then mask off a border the width of your rubber trim ( about 10mm for mine). The secret is to prime the glass, I used some black aerosol acrylic paint sprayed into the lid then brushed on. Then roughen up the back of the rubber trim with some wet and dry.
Use Loctite super glue, I used the gel type to stop it running off.
This really bonds well as I made a bit of a mistake with one piece of trim and had to cut it off with a razor blade.

Re: Windscreen rubber trim bonding

Posted: Wed May 28, 2008 9:46 am
by stylussprinter
phils wrote:After a few experiments I have found a way to get a very secure bond between the windscreen rubber surround and the glass.

First clean the area with alcohol ( meths etc) then mask off a border the width of your rubber trim ( about 10mm for mine). The secret is to prime the glass, I used some black aerosol acrylic paint sprayed into the lid then brushed on. Then roughen up the back of the rubber trim with some wet and dry.
Use Loctite super glue, I used the gel type to stop it running off.
This really bonds well as I made a bit of a mistake with one piece of trim and had to cut it off with a razor blade.
You don't like SIKAFLEX then :?: Sets just like rubber and becomes part of the trim . When fitted professionally , it only gets applied to the trim and the gap between glass and screen surround so isn't stuck to the glass at all -- simply overlaps it. Mine's been there since 1999 :roll:

Re: Windscreen rubber trim bonding

Posted: Wed May 28, 2008 11:05 am
by jefferybond
I had one hell of a job sticking the rubber trim on my screen! I initially used black silicone, which was a very bad mistake! This would not stick at all to the rubber!

Next I tried sikaflex, which was made harder by the fact there was now black silicone all over the place. The sikaflex stuck to the rubber a bit better, but still peeled off very easily.

The final solution was to use superglue directly onto the glass. This sticks pretty well and doesn't make a mess, but it can still be a little fragile if you are a bit rough when washing the car, but it's easy to re-stick bits that have lifted up.

Jeff