sealing in weathering powders

I have not use the brand powders, i still use Pastel Chalks at the moment. But you could do the rest of the weathering, seal that, then add the powders. As long as you don't handle the model to much, they hold very well.

Not sure if your doing aircrfat or armour, but if its the former, powders are not really very good for exhausts, and i do all my weathering on aircrfat after the final coat as i find they work better on a flatt finish.

And i haven't been able to find dull coat in the UK either.

thanks bish...

yes it's an a/c - the thing is it's a Navy plane finished in overall glossy sea blue.  As I said, after I gave the model a light wash the finish became much more subdued and matt.  I don't want to give the model another coat of either matt or satin varnish as it will then look too matt, or too glossy if you see what I mean (it would be unrealistic to have a wash and weathering and then gloss it back up with a satin finish in my opinion - ad I don't think an entirely matt finish would be appropriate for a plane finished in glossy sea blue - at the moment it's a happy medium between the gloss finish and the dulling effect of the wash/weathering)

dullcote on reflection would be too matt as well - it's banned currently because they found a harmful ingredient in it & stopped making it in the UK

I think I might try MIG productions powders and seal them in with their 'pigment fixer' - alternately I might just leave any weathering or pastels as they are - I'm unlikely to touch a)  the exhaust stain b  ) the gun blowback stains when handling the model after it's finished

Right, i see. Most of these powders seem to be aimed at armour rather than aircraft. As i said, i personally wouldn't use powders for exhaust stains, i prefer tamiya XF-19, but would be interested to see how yours comes out. What aircraft is it.

hi - an F4U Corsair (korean war)...

I might have a go at airbrushing it in that case......exhaust stains on Corsairs are a light grey colour, which is why I was reluctant to try airbrushing first - powders at least you can wipe off without too much trouble....

The good thing about XF 19 is that it is a transparent colour. So it doesn't come out to heavy. I often find two or three goes, leaveing to dry for a couple of mins in between does the job. Sometimes i will add a dash of black on the last one to make it a little darker down the middle.

I don't seal pastels, ever..... I just leave them alone, and if I have to dust the model,  I can always touch-up the pastels...

I also handle them with gloves on... Finger-prints will be brought out like a scene from CSI..