Ideas to stop chain's rear side plates drying out?

[darrsi]

I got it wrong when I said PJ1 -- this is the one I use

Doesn't really matter what you use on yours, 'cos it's never seen the rain before.
It's the wet stuff that causes all the grief, and a bit of salt during winter too.
You need to ride your bike through a downpour for a few hundred miles then see if that stuff is still on your chain or not, and doing its job.
I prefer the Wurth lube compared to the Wurth wax as it sprays on much easier, but i believe the wax is more suitable for winter time if you're an all year/weather rider.