Polly Scale paints - Some help & advise please.

Jon has pretty much covered it, except that I suspect the first bottle you mentioned has gone bad. Once the paint looks as if there is almost no solvent, it has started to cure and cannot be saved. I'd contact the merchant and ask for a replacement.

One advantage to the odd colors you get when it settles is that you can always tell when you haven't stirred it enough! 

I, too, love Polly Scale. I've never had a bad experience with the stuff.

That color weirdness is normal when they're settled. Sounds like it really settled out. Stir it up really, really well. It should recover OK, but I have had one bottle... it was azure blue... that just never did unclump.

I wouldn't add any thinner in the bottle.... though you basically use water to clean it, distilled is best.

I use Pollyscale for everything, and it has worked well for me. The one thing I wonder is if the shipment causes problems- is it flown by air? Wonder if the altitude causes problems? Don't know how it could, but makes me wonder. 

The Br. Int. Green should work out to the right color once it's thoroughly mixed. Here's how it looked on the most recent build I used it on, and here's another build using Br. Dark Earth.

I really like Pollyscale, as they brush well, airbrush well and dry fast. At least for me. Give 'em a good, thorough stir and hopefully they will unclump OK.