PAINT AND DECORATE
A site devoted to Painting and Decorating Techniques
click to email»» by Fred Biddulph ««click to email
SPECIALIST DECORATOR
Hand painted signs, furniture and murals.
INDEX OF PAGES
ANSWERS TO YOUR EMAIL QUESTIONS
How to create decorative techniques:-
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Students Work:-
ANSWERS TO YOUR QUESTIONS
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Keith-Marbling Plector-Just Funny Robert-Colour Washing Russ-Puttying, Paperhanging & Others Nobby-Acrylic Marbling Gill-Terebine, Whiting Natasha-Lime Wash Sharon-NVQ Questions N.Watts-Mural Painting Ian-Painting Gyproc Coving Noel-Turpentine Tara-Scumble
Nobbys Question
Could you tell me about acrylic marbling or water based marbling and how its done please?
ANSWER
Water based pigment does not flow over a surface in the same way that oil based pigments do. For this reason alone it is difficult to soften one pigment colour into another. This being the primary technique of marbling, to create a sense of depth, you can see the problem.
Having stated the above there are many specialist decorators out there creating excellent marble effects using acrylics.
Acrylic pigment, straight out of the tube, will dry a lot quicker than oil colour so we need to slow its drying time down. We do this by adding glycerine. This is the same glycerine used to sooth a sore throat or to make Victoria icing on a cake. Glycerine is the by-product from the splitting of natural oils or fats during Fatty Acid production but basically water with impurities, the impurities stop the water evaporating therefore slowing the drying time.
You can also purchase ready made acrylic scumble which is acrylic varnish with the addition of propylene glycol. Propylene glycol is used in antifreeze, food, plastic and the perfume industries. For all intents and purposes it is a synthetic glycerine.
Experiment by mixing either of the above with acrylic tube colours and blending one colour with another. The colour mix should stay wet until you have achieved your desired effect and at the same time start to dry soon after. You will find the technique a lot quicker than with oil based colours.
When you find, after practice, you can control the blending and softening of colours in water have a look at the sienna marble technique on this site. Although it's referring to oil colours the details are the same.
The beauty of using acrylic colours for marbling is that they do not yellow as do oil colours and there are no solvents used in the process.