Hi Danny,
I use RIBSHINE. £5.99 for a 500mL spray. Spray on, wait 30 secs, wash rinse or hose off. Does exactly what it says on the bottle.
It rejuvenated my 20 year old hypalon that had been through a few wars with grease grime and sh** into as new with just one application.
It definately get my
up.
Done a quick search on google and it available
here
Tim'mers.