Humbrol matt clear problem.

sounds about normal for mat varnishes and/or humbrol...  they have a tendency to settle.

try using a power tool to very very thouroughly stir it, then spray something as a test

I let it settle until the top was like water and tested it, same result, I did give it a good stir before the first test but will try again with the dremel tool and see if 35000 rpm stirs it up but I feel it wont change a thing. Humbrol has not responded to emails but no suprise there.

Thanks Jon_a_its for the reply.

Mick.

I use their Matt and Satin clear coats out of the tin and have had excellent results with both. I stir them thoroughly by hand before thinning them and applying with my airbrush. Like any other paint, yes they do separate and settle when sitting un used. Sometimes they can take a quite a lot of stirring to be properly mixed again between the carrier and the satin or matt coat agent.

Maybe it's fake Humbrol.