Thinning Canned Poly Clear

[Tegmark]

What is better to thin can of Poly clear? Meth spirits or canned thinners at bunnings?

What % for better smooth brush finish? I read start off at 25%.
What % for a spray gun? I have no idea.
Does the thinning reduce the gloss much? Spary poly cans don't have any gloss compared to the can.

One final slightly off Q, does poly clear cure faster in heat? Like setting it in 50degrees C for half a day.

Thanks.

[nrb]

What do the instructions on the can say??

[NCArcher]

I think it says to thin with turps.