Restore Rubber With Brake Fluid

Works great and is cheep.
Restore rubber with brake fluid. Brake fluid it has a rubber preservative in it. It is water resistant flexible strong and elastic. Natural rubber is made from the sap of the rubber tree which is drained off heated and formed into rubber parts. This piece connects a kawasaki carburetor to the airbox and one end was no longer flexible.
I didn t want to risk cracking any of them so i put a light coat of brake. Rubber has many uses. Water and moisture also penetrate rubber brake hoses through microscopic pores which are too small for fluid to leak out of but large enough. Isn t perfect but makes it more pliable so it can work.
I want to clean them up the best i can and maybe restore some of the oils in the rubber that has been lost over the years. Moisture enters the brake system in several ways. The vent in the master cylinder cap using cans of brake fluid that were left open master cylinders that are opened to the atmosphere for too long etc. Yes brake fluid works to restore rubber.
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. I suspect the rubber is buna n started out as a 40 50 durometer in hardness now about 80 90 duro. Rubber car parts can also be soaked in clean power steering fluid since the purpose of the fluid is to maintain the rubber seals in the system. 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.
Rubber trim on old cars may be rejuvenated with a tire dressing product like back to black or a rubber dye like forever black. The inside of the intake trumpets felt like plastic they didn t bent at all. Step 1 clean the seal with warm water and a mild soap. On my cb400f the original boots and rubbers around the intake box were getting old and stiff.
How to often rubber with brake fluid. That said over time natural rubber will tend to dry out stiffen and crack. It is often cheaper and easier to replace the. However it is possible to restore a damaged rubber seal and extend its lifespan with proper care and maintenance.