A Test Using Brake Fluid To Restore Old Rubber Parts
Having never tried this before I thought it would be interesting to see whether it does actually work so I decided to test it myself.
Ok the test is over and this is what I found
The Method
I took two rubber gromets from the fuel tank on my Kawasaki that had aged and gone hard and brittle.
They were very hard, almost like a hard plastic and if you tried to bend them they would just start to crack and break up.
As you can see one side ( the right ) looked perfectly normal but had gone very hard almost like a hard plastic and was virtually unbendable.
The other side ( the left ) had completely deteriorated and had not only gone hard but if you touched it it would just crumble into small pieces.
I simply dropped them into a foil tray and covered them in some old dot4 brake fluid I had lying around and left them to soak for 24 hours.
I simply dropped them into a metal foil tray
And covered them in some old dot4 brake fluid and left them for 24 hours
The Results
After 24 hours I removed them from the brake fluid and this was the result
When I removed them from the brake fluid I could not see any change, they looked just the same as when I had put them in with no swelling or distortion and totally intact, I had wondered if they might dissolve or melt but they looked just the same as when I had put them in the fluid the day before,
No visual change to the side that looked normal
The bad side also looked just the same as before although there was evidence of some slight dissolving of the rubber with a slight black slimy coating to the surface.
There was also some loose bits that came away when you rubbed the surface, these were the remnants of the crumbling that was evident before treatment but it appeared to have stopped any further bits crumbling off
.
The rubber was now completely flexible and in my opinion was now just as flexible as a new item would be.
The good side was literally as good as new and indistinguishable from a new item.
The bad side looked just as before but was now completely flexible and no longer cracked or crumbled when touched and seemed to now be completely restored.
The Conclusion
IT WORKS !
Much to my surprise this does seem to work. Having left them outside in the sun and rain for a couple of weeks they still seem supple and flexible and I would not hesitate to put these back on the bike.
It was simple, cheap and easy to do and seems to work very well but be careful as brake fluid is quite a nasty chemical so always follow all health and safety regulations.
IMPORTANT
ALTHOUGH MY TEST SEEMS TO HAVE WORKED VERY WELL THIS IS JUST MY LITTLE HOME TEST AND NOT A SCIENTIFIC EXPERIMENT.
YOU ARE RESPONSIBLE FOR YOUR OWN HEALTH AND SAFETY AT ALL TIMES NOT ME SO BE CAREFUL AND SENSIBLE AND DO NOT USE ON ANY SAFETY RELATED ITEMS AND IF YOUR ITEM DISSOLVES OR FALLS TO BITS DON'T BLAME ME I CAN ONLY SHOW WHAT HAPPENED TO THE PARTICULAR ITEMS I TESTED.