As it was not really suited to my usual interests I proposed to experiment and use the method of using salt to mask to create a rust effect on this wagon, as described most recently in 'Narrow Lines' (7mm NGA) but previously published elsewhere. This base layer of rust effect is stippled on acrylics over Halfords red oxide primer - Humbrol Red/Brown, Vallejo Hull Red and artists Red oxide, followed by a slightly more orange mix of the latter:
Having left the rust stippled paint to dry overnight I wet the surface of the wagon body and added the salt - a mix of rock and table salt - with hindsight a lot of the rock salt was far too big in size (despite my efforts to crush it). This was then left to dry out (aided by the airing cupboard):
Once dried out I did remove some of the larger particles of salt before spraying over the wagon with Halfords grey primer and again left to dry:
Once the grey paint was dry I rubbed off most of the salt and then washed off the residue. The effect is very pleasing and I think I would struggle to achieve this any other way:
The next stage was be to paint the underframe to enhance the wood effect and also to add some further weathering to the body by adding some texture to selected rust areas using weathering powders. This was applied over dabs of Vallejo Matt Medium to provide some adherence. It does look rather bright but once varnished it toned down:
Before varnishing I did add a little more rust coloured weathering powder to the worst patches, then the next day I sprayed with Humbol aerosol matt varnish which dried satisfyingly matt. Once the varnish was dry I added some light dry brushing around the body edges and wooden chassis frame, and some metallic dry brushing on the coupler blocks and axle boxes.
This has certainly proved to be an interesting diversion during the Christmas and January period where a lot of real life happenings have restricted the modelling time somewhat....
Colin
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