Hi all, I recently was making the Airfix MiG-17 using the 27002 Metalcote tin Polished Aluminium as the base colour. This was my first time using enamel paints as previously I had only used acrylics. I then had problems with applying an enamel wash for panel line details, as the white spirit I used to remove excess wash also stripped the enamel metalcote underneath. I was aware this would be a problem, if no acrylic layer was applied over the base. However I did apply two layers of Vallejo Satin varnish, and yet the white spirits still stripped through these layers. On my next model, also using the same 27002 enamel base coat, I used Humbrol acrylic spray varnish (satin) as a protective layer, and it worked fine, the metallic paint lost its sheen but the base layer did not come off with the white spirits. My question is, why did the vallejo varnish fail to protect the enamel base, but the Humbrol spray varnish succeed? Also, I have a bottle of Humbrol satin clear that I haven't had use for - would this work to protect an enamel layer from white spirits? Many thanks Max