Recommended black sealant for screen rubber splits?

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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 3:08 pm

I cannot find any mention on the Forum to answer this apart from this post:
DARK STAR wrote:
Wed Sep 05, 2018 9:12 pm
the old rubber and insert.
There are gaps of up to 6 mm in places and of course the rubber is perished here and there.
I carried out a major renovation with black Sika and have probably cured the leaks, time will tell.
I hope I never need to remove the screen ...
Is there a recognised 'best' sealant to use to give the screen rubbers a little more life? I had intended to use my trusty tube of Bostik black gloop that my father used for sticking stick-on rubber soles onto worn-out shoe soles, but as the tradition of stick-on soles has long since gone to the great cobblers in the sky the Bostik seems to have gone with it, and for the first time in 50 years I find nary a drop of black sealant in the house :cry:

So, major event, a new tube of sealant in the offing... but which one, as I really don't want to waste a 310ml cartridge of stuff on a job only needing a few mls. Also, since there are gaps to be filled, I want something that will not slump so it needs to be a bit of a caulk/filler too. And all in a 25ml toothpaste tube, now is that too much to ask? Something like this, perhaps, but with filler?

All suggestions appreciated. Thanks


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Recommended black sealant for screen rubber splits?

Post by Terry H » Wed May 01, 2019 3:15 pm

It was recommended to me some time ago that it's best practice to use a non hardening black sealant. I think it was called Slickafix or something like that.
Regards Terry H



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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 3:37 pm

Terry H wrote:
Wed May 01, 2019 3:15 pm
It was recommended to me some time ago that it's best practice to use a non hardening black sealant. I think it was called Slickafix or something like that.
Regards Terry H
Probably this stuff then: https://www.screwfix.com/p/sika-sikafle ... 00ml/79299

Trouble is, as I said, I only need a thimblefull, not a full 310ml builders' cartridge. Though it looks like that might be cheaper, anyone want the 295ml left over ?


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 3:44 pm

Just found this, Sikaflex black, 70ml, but with a ridiculous delivery charge that makes the 310ml cartridge cheaper by half - so much for saving the planet :roll:

https://www.manomano.co.uk/marine-glue- ... id=8037767

Anyone know which stores stock this size? eBay is "sold out"...


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Recommended black sealant for screen rubber splits?

Post by Rattling » Wed May 01, 2019 4:10 pm

Marine is shorthand for double the price :D :D


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Recommended black sealant for screen rubber splits?

Post by DailyDriver » Wed May 01, 2019 4:20 pm

Have a look at Sugru ( https://sugru.com/) Wonderful stuff. I have used it to fill cracks in screen rubber quite successfully.



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Recommended black sealant for screen rubber splits?

Post by windy » Wed May 01, 2019 4:40 pm

I can recommend this for rubber repairs
https://www.ebay.co.uk/itm/BLACK-WITCH- ... cWH1Hstuff



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Recommended black sealant for screen rubber splits?

Post by 1969SE5 » Wed May 01, 2019 4:44 pm



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Recommended black sealant for screen rubber splits?

Post by reliant-reviver » Wed May 01, 2019 5:08 pm

Sadly you get very little shelf life with sikaflex once open. Least I've not managed to preserve an opened cartridge with any of my usual tricks.

Speaking of which I have an in date barely used tube of the stuff (black sikaflex) on the shelf which did not want to play ball a couple weeks ago. Top inch is seized up. Rest is probably fine if you wanted to cut it open.

It sticks to everything and you'll likely make a big mess....


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 5:30 pm

reliant-reviver wrote:
Wed May 01, 2019 5:08 pm
Sadly you get very little shelf life with sikaflex once open. Least I've not managed to preserve an opened cartridge with any of my usual tricks.

Speaking of which I have an in date barely used tube of the stuff (black sikaflex) on the shelf which did not want to play ball a couple weeks ago. Top inch is seized up. Rest is probably fine if you wanted to cut it open.
Well this is my point, I really don't want to buy 310 ml, use 15 and throw 295 in the bin. that's why the 70ml size looks attractive, and if there was someone selling it down the road, job done. I am thinking about the Granville Gv0373 Silicone Sealant 40 G Black, but if you read the reviews on Halfrauds site this seems even worse - several folks report it having set solid before they even got the tube cut open - now that's what I *call* fast-curing !! :lol: :lol:

I will explore the other suggestions above - thanks folks.


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 5:35 pm

1969SE5 wrote:
Wed May 01, 2019 4:44 pm
or maybe ... https://www.amazon.co.uk/Wurth-Silicone ... 2QHYVA0VTC
£25 ?? I can get a whole new seal for that ! :lol: The benchmark is £5.39 for 310 ml Sikaflex in Screwfix. Anything above that price is silly, from the point of view of my wallet, but do we really want round rubber bricks being dumped in the landfill?


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Recommended black sealant for screen rubber splits?

Post by Old and Slow » Wed May 01, 2019 5:38 pm

You can buy a small tube of silicone black sealant from Halfords.


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 5:45 pm

windy wrote:
Wed May 01, 2019 4:40 pm
I can recommend this for rubber repairs
https://www.ebay.co.uk/itm/BLACK-WITCH- ... cWH1Hstuff
Thanks, but I suspect this is more like an adhesive than a filler ? An interesting point, though - anything that works on a wet suit is probably well able to seal a car window. Thanks.


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 5:50 pm

DailyDriver wrote:
Wed May 01, 2019 4:20 pm
Have a look at Sugru ( https://sugru.com/) Wonderful stuff. I have used it to fill cracks in screen rubber quite successfully.
Now this *does* look promising. Widely available, cost under £5, small unit size in a handy pouche... ticking lots of boxes so far... So you've been able to *fill* the cracks - what about sealing them ? (which could of course be done with something like the Sea Witch, but it would be extra-good if Sugru did both jobs). How well does it bond to the weathered "ends" of the old screen rubber? It seems from the ads on eBay it has a dated shelf life (that alone is a bonus!) but how well does it last before opening? Does it cure on the shelf even if the pack is not opened, as some of the silicones seem to do?


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Recommended black sealant for screen rubber splits?

Post by drcdb15 » Wed May 01, 2019 5:53 pm

Old and Slow wrote:
Wed May 01, 2019 5:38 pm
You can buy a small tube of silicone black sealant from Halfords.
Yes, but this is the stuff many people report is already setting before they get home from the shop !


Chris
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