30-05-2018, 07:26 AM
(29-05-2018, 12:27 PM)Austin Carr Wrote: Just search "natural rubber rejuvenator" but what ever you decide to use, test it on a small piece of the mat first.
Unfortunately my experience with pre war Meccano rubber tyres indicates that the hardening is permanent.
I have found that by warming the tyres at low heat they become flexible but on cooling they revert to hard again .
Warming your mats in hot water may allow fitting but they will probably fail in use.
Tony.