COVID-19 UPDATE: Our web shop currently remains open to customers. We are constantly reviewing this in light of government advice and in discussion with our fulfilment partners. However, delays in local delivery may occur which are outside of our control - we apologise in advance for this.

SWeathering Powder adhesion

I have recently been trying to apply exhaust stains to my current build. From any tutorials I have seen, they go on dry and a brushed in, but when i do this they just slide around and don't stain the aircraft. This is the same for scraped-up tamiya weathering powders and hard pastels.

Any tips?




3736 posts

Community Moderator

I use pastels, rubbed down with a Mk.I finger

Owner of the Airfix Tribute Forum

Paul Brown

1405 posts

Community Moderator

Pigments can be brushed and worked onto a matt surface, which is a bit more 'grippy'. They really need fixing, but provided you avoid handling they should be okay.

I used Humbrol pigments to try and get a rusty look to the exhausts on this Tiger 1 model. It was also worked into the cables.

Dad Paul B

476 posts

I tend to use cotton buds to apply the pigments. Paul's point about a matt surface is good. Also you need to spray a coat of varnish or spray coat as brushing varnish will make the pigments run. I haven't tried pastels on models yet but they do blend easily when rubbed with a finger. So you might follow Ratch's advice.

Paul - Classic Jet Fan

Thanks Ratch for the tip. Mark 1 finger did the job.

I had already covered the thing with a gloss varnish (of dubiuos origin hoiked out of the cupboard) which was probably causing the problem.

Please create an account or login to reply.

Forum Rules

  • The Airfix Forum is intended for discussion of plastic scale modelling. Primarily a place for newcomers to ask questions and seek assistance from like-minded individuals, the Airfix Forum offers users the chance to join an active and friendly community.
  • Discussion of other plastic model kit manufacturers is allowed, however, active promotion or advertising of our competitors is not permitted.
  • Please keep in mind that the Airfix Forum is a publicly viewable space and you should never post personal information (including email addresses).
  • While every effort is made to contact you before any censorship, we reserve the right to amend or remove any content without explanation.
  • All customer service enquiries should be directed to Airfix Customer Services.

Useful Links

Forum Guidelines

This site uses cookies to provide users with the best experience possible, to find out more about them or how to remove cookies from your browser please view our Privacy Policy Or accept cookies to continue to use the website.
Membership Restricted Product