I've always thinned Tamiya Clear a little to get the right consistency, but in truth, it's been years since I've used it.
Can you get Future where you live?
Truly, mate, it's everything people says it is. Goes on easy, lays down flat, dried very hard, clears up canopies and windscreens (then you gotta do better on the interior and cockpit detail).
I thin the Tamiya with isopropyl alcholol. I also have Tamiya thinner. But I just don't use the stuff anymore - I've found a better product.
Cheers
LeeTree