1⁄35Easy Wood Grain Effects
I've seen other modellers achieve spectacular results using oil paints over an acrylic base, but I hit several problems in the course of building the Albatros. While I just about got away with it for the interior, my attempts at the wood panels for the fuselage exterior were a disaster - the oil paints were a real dust magnet, took ages to "dry" and, even then, were so easily damaged that I ruined the effect in handling the parts to continue the build. I know the fault must lie with me but, finally, after several attempts and growing frustration, I scrapped the idea of using oils and went back to a technique I'd last used 30-odd years ago.
Stage 1The first step is to paint the object to be "wood grained" in matt enamel sand or light tan (I haven't tried acrylics, but they'd probably work fine, so long as they are allowed to dry thoroughly). The key word here is "matt" - the surface must be nice and matt for the following stages to work. The colour isn't really important - I've used everything from beige through to tan - it simply gives a base for the next stage, although (obviously) the darker the base-coat, the darker will be the finished effect.
Stage 2Once the enamel paint is dry, paint it liberally with cheap poster colour from the art shop. I use Vandyke Brown, Burnt Sienna, Raw Sienna or Dark Ochre depending in the type of wood I'm trying to simulate (adding Grey would work well for heavily weathered and sun-bleached wood). Apply the poster paint without too much water. You can now see why the base-coat must be matt - the poster paint should cover easily with no tendency to pool into droplets (Pic. 1).
Stage 3Once the poster colour is dry, dip a brush in water and wipe it on a clean tissue, leaving it damp (rather than fully wet). Draw the brush over across the poster colour in straight lines (Pic. 2) and it will begin to take off the water-based paint, creating a "grained" effect (Pic. 3). Clean the brush regularly and work steadily, checking the effect as you go. The beauty of the technique is that, if you do mess up, you can just apply more poster colour, wait a few minutes and try again. By varying the colour and the amount you brush off, you can easily create laminated effects like on the propeller in the header picture.
Stage 4The poster paint will dry in a few minutes, but I usually allow half an hour for safety. The last step is to varnish the finished item. This helps protect the finish and also has the effect of making the "wood grain" more pronounced (Pic. 4). Ideally, it's best to use an airbrush, but I often use Klear/Future applied with a paintbrush - so long as you don't brush too hard, it shows no sign of lifting the poster colour.
ConclusionThis is a really easy way to create wood grain effects. The poster colours are both cheap and will virtually last forever - I'm still using pots I bought in the 1970s - and, because the poster paint dries so quickly, dust is much less of a problem than when using oils.
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