how to black wash over acrylics??

[Guest]

hi guys,

as a newbie modeller/bike builder i havent ventured into the area of stripping the chrome parts and repainting with alclad or similar. on the chrome plated parts i do a black wash with watery enamel and then remove the excess with an enamel thinners dipped q-tip..the results are far superior to an untreated part.

my question is, if i decide to strip the chrome off (immersing in bleach??) and repaint using either tamiya acrylics or alclad (any suggestions on colours here?), then how do i do the blackwash? im assuming i cant use enamels thinners as this will attack the acrylic paint...what is the best technique for a convincing blackwash over acrylics?

Cheers

Si

[Ian M]

Acrylics are unaffected but Enamel paints. One of the great things about them. I use White Spirit as a thinner for Enamels and never had a problem. However for a better result artists oil paint are even better.

Alclad can be given the same treatment.

As for technique, just mix up a good thin mix of oil paint and thinner and slosh it on and leave to dry (Oil paint not enamel) then wipe off.

Colour? Do you mean for the Alclad of the wash.

Ian M

[Guest]

the simplest wash is the best in my opinion. this being a very thin solution of either a decent black artists acrylic paint (to give a nice dull finish ) or revells matt black acrylic (to give a flat finish).

oil washes are fine but sometimes I've found the thinners taInts the acrylic base coat, my experience finds you have to be fairly quick with applying and rubbing off etc.

[Guest]

so if i say repainted a de chromed bike frame, repainted in either alclad or acrylic, could i then do

a) a black wash using acrylic without removing the original finish

b) a black wash in enamel over acrylic (or alclad) without removing the original acrylic finish?? baring in mind i would have to use enamel thinners as part of an enamel based black wash..

[Ian M]

I wouldn't put an acrylic wash over and acrylic topcoat. It would be like giving it a second coat. I would go for an enamel wash with white spirit as a thinner. This will not effect the Acrylic you are applying it over.

Alclad is quite robust ans should be able to take a spirit wash.

Like all things you are not sure of the best thing is to try it and see. Not on the model of course. Try it on an old kit, a bit of plastic packaging or the like.

Ian M

[Guest]

hi guys,as a newbie modeller/bike builder i havent ventured into the area of stripping the chrome parts and repainting with alclad or similar. on the chrome plated parts i do a black wash with watery enamel and then remove the excess with an enamel thinners dipped q-tip..the results are far superior to an untreated part.

my question is, if i decide to strip the chrome off (immersing in bleach??) and repaint using either tamiya acrylics or alclad (any suggestions on colours here?), then how do i do the blackwash? im assuming i cant use enamels thinners as this will attack the acrylic paint...what is the best technique for a convincing blackwash over acrylics?

Cheers

Si

Hi mate i use oil paint to do all my washes with, mix it with turps. Ifind it works very well on acrylic paint.

scott

[Ian M]

Acrylics are unaffected by oil paints so thinned down artists oil paints or Humbrol Enamel thinned with White spirit will work fine, the advantage of artists oils are that they take longer to dry and are more playable.

Ian M

[Guest]

I use the oil wash method, but as Colin said sometimes it can taint/disclour the acrylics used as the base.