Undercoating without spraying

[Steve J]

I'm finding the brush on primer (well thinned black paint at present) is working well, as with the never ending rain we have been having, I can carry on where as if I wanted to spray primer on, I wouldn't have been able to do it due to the weather.

[John Cook]

To be honest a large soft brush is what I use most of the time to apply primer/undercoat, often one and the same thing in practice on 10mm metal figures.  It is not much more labour intensive that using a spray and a lot less hazardous than an aerosol, or even an airbrush.  The latter produces no toxic fumes but as mentioned above it does produce particles.  It is recommended that you wear a mask when using an airbrush indoors and that is common sense really but I'd wear one when using an aerosol anyway, so not much of a challenge.  I've never had any issues using an airbrush indoors and I do suffer from Allergic Rhinitis, though quite what I'm allergic to has never been established.