Wednesday, February 15, 2012

Acrylic vs. Watercolour

I am often asked which medium I prefer- acrylic or watercolour. My answer is that it depends on what I am painting at the moment. Both are water-based media, but the technique and effects are quite different.
Acrylic paints are very versatile. They can be diluted and used as washes and glazes like watercolour on watercolour paper. They can also be used straight from the tube and applied to canvas and so behave more like oil paints, especially when used in an impasto technique. They dry quickly, which can create problems if brushes are not cleaned immediately. A variety of materials can be applied to the acrylic canvas to  provide texture and to create collages. I find that acrylic provides the freedom to experiment, as you can cover mistakes or change your composition.
Watercolour on the other hand is basically applied to paper, although additional surfaces are becoming available, such as watercolour canvas, clay boards and terraskin.  The painting must proceed in layers and from light to dark. There is a luminous transparent quality to watercolour painting which is impossible to completely duplicate in  acrylic.There is little ability to correct mistakes and that has given watercolour  the reputation of being difficult to master.
I have always been thankful that my first exposure to painting was in a watercolour workshop. I feel it is much easier to move from watercolour to acrylic than the other way around. Since I have been doing more acrylic painting recently, I found it quite a challenge to return to watercolour. I became so frustrated that I repainted over three watercolours in acrylic. Ultimately I  went back to a familiar scene and plodded along. The initial effort, in images one and two, as you can see was a complete failure. Finally things began to click, in images three and four. More watercolour painting needed!!


#1

#2


#3



#4
This process only confirmed my belief that if you use more than one medium, you need to vary your painting techniques in order to maintain the skills unique to each.