[Gilles]

Originally Posted by particlewave

Because bits of crud blocking up coolant passages is cool.

Particlewave, actually there is a product called POR15 that it was designed to protect the underwater metal surfaces of the offshore oil platforms (you can apply it under water..!), it is nasty to use as you would Not be able to remove it from your skin.. (you have to wait until the sking re-grows..), but once it cures you will not be able to remove it.. it is very thin liquid so should be able to apply easy (as long as you are wearing long heavy duty rubber globes)

I use it once to reline the inside of a leaky X1/9 fuel tank, it does work..