Think I'm going to have to try claying the shower.... Question is whether to then apply a sealant...

Of course you need too, nothing like a beading shower screen  Former Mod/Member, with the most post & Chicken George Arch nemesis

May just have to give it a go ...!

Tiles I have are porcelain - so once I clayed em I went over the lot with a sealant
Floor tiles ain't slippery at all  BETTER looking half of the famous Twinlanders
The wanna be other half - http://www.freel2.com/forum/member-carriec.html

I have never tried Claying anything other than vehicle paint. My wife will have me on the bath rooms insted of the car if she finds out.

I always tar spot first before clay as it saves effort and Clay.

Coming from a MINI the Freelander takes far longer to detail but the panels are pretty flat so it is an easy job.
I find it theraputic.