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What will soften rubber parts? #457426
10/05/12 6:13 pm
10/05/12 6:13 pm
Joined: Jan 2009
Posts: 561
Rotorua, New Zealand
'59 Bonnie Offline OP
BritBike Forum member
'59 Bonnie  Offline OP
BritBike Forum member

Joined: Jan 2009
Posts: 561
Rotorua, New Zealand
What will soften rubber parts?

I am looking to soften rubber gaiters that go between the fairing and the shocks. The bike has stood for a number of years; it starts and runs great so I donít want to strip it at all.
The fairing gaiters are of the vulcanized black rubber type. I am looking for a easy to use house / garage product that I can use to soften the rubber up and stay that way.

I have read elsewhere of a number of possibilities but would like to hear if someone has any experience with this or is a bio chemist who can recommend a cocktail to rub on the rubber to soften it and keep it that way with say maybe a maintenance period of every 3 months or so.

Hope you can help, thanks


"We are "motorcyclists" & "historians" our hobby includes the research & preservation of motorcycle history. What we are doing in the research & preservation of iconic bikes is, an important part of its history & value".
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Re: What will soften rubber parts? [Re: '59 Bonnie] #457429
10/05/12 6:36 pm
10/05/12 6:36 pm
Joined: Sep 2008
Posts: 849
Edgewater, Md
B
Blown Income Offline

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Blown Income  Offline

BritBike Forum member
B

Joined: Sep 2008
Posts: 849
Edgewater, Md
I have used spray silicone before for softening door jamb rubber seals on cars, might work on rubber gaiters.


1955 BSA Bantam D1 Plunger
1956 BSA A10RR Street and LSR Bike
1961 BSA C15S
1966 BSA spitfire
1969 Triumph T100C
1970 Triumph TR6R
1970 Triumph TR6C
1972 BSA Lightning LSR Bike
1974 Triumph T150V
Re: What will soften rubber parts? [Re: Blown Income] #457517
10/06/12 1:46 am
10/06/12 1:46 am
Joined: Aug 2011
Posts: 416
OZ
O
Old Cafe Racer Offline
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Old Cafe Racer  Offline
BritBike Forum member
O

Joined: Aug 2011
Posts: 416
OZ
I've heard wintergreen oil will soften old rubber.

Re: What will soften rubber parts? [Re: '59 Bonnie] #457519
10/06/12 2:13 am
10/06/12 2:13 am
Joined: Aug 2001
Posts: 4,553
Owego, NY, USA
Mark Z Offline
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Mark Z  Offline
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Joined: Aug 2001
Posts: 4,553
Owego, NY, USA
We have this stuff at work called rubber lubricant emulsion or something like that - it's intended for use as a prep for rubber parts before assembly. We don't use it for anything at work, but I used it on my fork gaiters and the stuff really works. I started with new gaiters, but it might work for old rubber as well.

Anyway, when I go back in to work (this weekend), I'll get more information off the bottle. It might be something you can get retail.


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
Re: What will soften rubber parts? [Re: Mark Z] #457739
10/07/12 5:30 pm
10/07/12 5:30 pm
Joined: Jan 2009
Posts: 561
Rotorua, New Zealand
'59 Bonnie Offline OP
BritBike Forum member
'59 Bonnie  Offline OP
BritBike Forum member

Joined: Jan 2009
Posts: 561
Rotorua, New Zealand
To be fair I have asked this on other forums as well, these are the contenders with the number of times mentioned: Gummi-pflege 2, Peanut oil, dielectric grease, Denatured alcohol, brake fluid 2, silicone spray 3, wintergreen oil 3, liquid Ivory soap, 303 Aerospace Protectant, Pledge furniture polish2, ATF (automatic transmission fluid).
I did a small experiment with what I thought would work based on the above and what I had in the garage at hand. I cut an old bicycle tube in ĹĒstrips and smeared them with multi-purpose grease, old engine oil, brake fluid, aluminium deoxidiser, ATF, pledge furniture polish, carb cleaner, painterís thinners and CRC marine spray. I can tell you the only ones that seemed to work was the CRC, painterís thinners and carb cleaner sprays.
The thinners is no-good it just makes the rubber deteriorate. The Gummi-pflege is a known rubber product for BMW door / sun roofs rubbers etc. Maybe once its soft a little bit of furniture polish, Gummi pflege or silicone spray will keep it soft.


"We are "motorcyclists" & "historians" our hobby includes the research & preservation of motorcycle history. What we are doing in the research & preservation of iconic bikes is, an important part of its history & value".
Re: What will soften rubber parts? [Re: '59 Bonnie] #457766
10/07/12 8:58 pm
10/07/12 8:58 pm
Joined: Aug 2011
Posts: 416
OZ
O
Old Cafe Racer Offline
BritBike Forum member
Old Cafe Racer  Offline
BritBike Forum member
O

Joined: Aug 2011
Posts: 416
OZ
The winter green oil does work but it's not an instant spray on thing it has to be soaked in for some time.
People use it for old hard footrest and center stand rubbers

.

Re: What will soften rubber parts? [Re: Old Cafe Racer] #457809
10/08/12 5:43 am
10/08/12 5:43 am
Joined: Jul 2007
Posts: 451
redondo beach, ca
Bob G Offline
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Bob G  Offline
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Joined: Jul 2007
Posts: 451
redondo beach, ca
Do you have to heat the wintergreen oil?


Bob Gregor
Re: What will soften rubber parts? [Re: Bob G] #457811
10/08/12 6:47 am
10/08/12 6:47 am
Joined: Aug 2011
Posts: 416
OZ
O
Old Cafe Racer Offline
BritBike Forum member
Old Cafe Racer  Offline
BritBike Forum member
O

Joined: Aug 2011
Posts: 416
OZ


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