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Old 12th June 2019, 08:00   #1
hinged_bap
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Default Robber seal reviver

Ok, not a 75/ZT but relevant nonetheless due to vintage of vehicles.


My daughter has a mini cooper convertible and the seal where the leading edge of the soft-top bit meets above the windscreen is leaking ever so slightly at 1 corner. There is a rubber seal that runs the width where the 2 meet and I'm wondering its its gone a bit hard and not as effective as it once was. Considering the seal costs nigh on £250, I thought I'd ask if anyone has any positive experience of a rubber reviver, ( one that makes it soft again ) and if so which one.
TIA
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Old 12th June 2019, 08:51   #2
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I have found that Aerospace 303, or 303 Protectant ...or whatever they want to call themselves in different markets does a good job of keeping (silicone) rubber supple over an extended period.
Cleaning the rubber with IPA and following up with a rub down with a fine grit sandpaper will help before applying the 303.
Hope this helps.
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Old 12th June 2019, 09:02   #3
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Originally Posted by BaroqueMoon View Post
I have found that Aerospace 303, or 303 Protectant ...or whatever they want to call themselves in different markets does a good job of keeping (silicone) rubber supple.
but what about restoring suppleness?

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Old 12th June 2019, 12:28   #4
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i tried a product called Risoline seal restorer or similar name to restore a crank seal which it did really well .
Had a bit left over and rubbed it on a bit of old rubber i had and i was inpressed how it softened it up and swelled it up a little.Might be good !!
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Old 12th June 2019, 12:45   #5
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A 50/50 mixture of wintergreen oil and rubbing alcohol works wonders to renew the old hardened rubber carburetor mounting boots (isolators) on 20+ year old motorcycles. Soak overnight - not sure how to apply in your application.

Cheers,
Glenn
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Old 12th June 2019, 14:37   #6
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thank you for the suggestions chaps, will investigate and weigh up the costs, Id never heard of rislene but they do all manner of stuff, quite pricey though.
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Old 12th June 2019, 12:27   #7
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Quote:
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Cleaning the rubber with IPA .

India pale ale! I’d rather drink it 🤣🤣
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Old 14th June 2019, 04:20   #8
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you could try olive oil, it has always worked for me in the past on door rubbers etc but use good olive oil. hope this helps,
I use olive oil as well.

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