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Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 8:48 am
by Chrisw
Hi guys. I have new rubbers for my EK front and back glass. I have had someone suggest there is no need to apply a sealant/mastic as it is too messy and unnecessary as new rubbers whould seal just fine. I would be keen to hear other's thoughts.
Thanks, Chris.
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 9:23 am
by Errol62
Selleys butyl mastic available at Bunnings. Turps cleanup. Non setting. Mainly just between body and rubber. It isn’t that messy. I like the grey as it looks like the original GMH windscreen sealant which is no longer available.
FB ute fixer upper, EK van on rotisserie
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 9:30 am
by Chrisw
Thanks Erroll.
I am thinking of giving it a crack myself, trick will be not to get it all over the new headlining

Rarepsares have done a good video online, probably makes it look easier than it is .
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 9:42 am
by Errol62
Don’t be fooled by the fact they don’t use any sealant in their clip. I have successfully done front and rear sedan screens at home. Get yourself a length of nylon curtain or sash cord matching diameter to the gap in the seal. Some tape to hold the rubber and trim in place on the screen. Rubber mallet. A helpful friend if you can. I did both mine solo, wasn’t that hard, seals were ten year old Rare Spares ones.
There seems to be a problem with the Rare Spates seals current batch not fitting at the bottom corners on the front screens lately. I believe this is being rectified but if you search on here you will find people have been very happy with seals purchased from I think Old Auto Rubber Co.
Good luck.
Cheers
Clay
FB ute fixer upper, EK van on rotisserie
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 9:53 am
by Chrisw
Great advice thanks Clay. I bought the seals about 4 years ago (when I thought I could restore the vehicle quickly), very naive indeed. Biggest problem has been almost with painters. First got started on panels nearly 6 months after he said he would start, just did the panels, not the body and did a cr@p job on them. I took the panels back after 12 months, paid him more than they were worth and then wited another 12 months to get someone else. Up side is the new guys is fantastic and nearly finished. He had to redo the panels the first guy had his apprentice have a go at !!! Familiar story I undertsand hearing from others.
Cheers, Chris.
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 10:21 am
by Errol62
Sounds familiar Chris. I decided to do my own painting but it is the prep mate, the prep. It goes on and on if you want a half decent job that will last.
We do love to see photos of peoples builds on this forum. When you get a chance you might post some photos in the gallery section.
Cheers
Clay
FB ute fixer upper, EK van on rotisserie
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 4:59 pm
by gpi
just dont take the curtin cord when the missus is home
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Nov 01, 2019 8:18 pm
by Chrisw
Wise words Clay, I will wait until she is out shopping

Re: Windscreen replacement - mastic or no mastic?
Posted: Sun Nov 03, 2019 10:15 am
by FireKraka
Hi Chris even if you get mastic on the headlining it cleans off with turps don't ask me how I know
Neil
Re: Windscreen replacement - mastic or no mastic?
Posted: Mon Nov 04, 2019 8:04 am
by gledge
Hey mate I have always used Wurth dab of window sealer.. it is great stuff, you can make as much mess with it as you want and then roll up a ball of itself and dab up any excess with it. It is actually quite fun to use

bit more expensive but makes the whole experience way better
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Re: Windscreen replacement - mastic or no mastic?
Posted: Mon Nov 04, 2019 6:26 pm
by Errol62
Good to know glegend
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Re: Windscreen replacement - mastic or no mastic?
Posted: Wed Nov 06, 2019 3:44 pm
by FJWALLY
Rares apparently have new stock of the front seals that should be better but have not seen one fitted as yet - just an FYI
Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Dec 13, 2019 1:25 pm
by Errol62
Fcwrangler on the FE FC forum advised Rare Spares have now resolved the FB EK front screen rubber issue. Think he is a windscreen fitter so should know.
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Re: Windscreen replacement - mastic or no mastic?
Posted: Fri Dec 13, 2019 2:08 pm
by Harv
I spoke to Dave Ryan from Rares about the windscreen rubbers about a month back. They were still up in the air at that stage. Have flicked him a message to see if we can get an official update.
Cheers,
Harv
Re: Windscreen replacement - mastic or no mastic?
Posted: Sat Dec 14, 2019 12:27 am
by Errol62
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