Pastel painting – tips and equipment

Firstly, there are the pastels themselves. They are made from pure powdered pigment bound with a small quantity of gum binder (low quality pastels have chalk added). Pastels come in many varieties (hard, soft, sticks, pencils, etc.) but they are essentially all the same: the final choice is largely a matter of personal preference.

What’s probably more important is the type of paper you use with pastels. When pastel is drawn across a surface, the pigment crumbles, and so deposits on that surface. Using the right type of paper ensures that the deposited pastel sticks to the paper, and doesn’t just lounge on the surface. In other words, a good pastel paper will have a “tooth”, or grab.

Tooth and texture are not the same things. Velour paper has a sumptuous soft texture, but not much tooth. Art Spectrum Colourfix type papers have little texture, but a fantastic tooth – like very fine sandpaper. The choice of paper is often down to what sort of painting you want to make. Briefly, the more toothy the paper, the more pastel it will grab, allowing greater colour mixing and tint intensity. However, a strong tooth can restrict the ability to record fine detail. The final choice is often a bit of a compromise, and down to experimentation, but the key point is – don’t use any old paper to paint with pastels; use a paper made specifically for pastels.

Pastel work requires a fair amount of blending and reworking: some pastel painting techniques require the use of water, so it is important to use a paper that is robust. My personal recommendation is that you use the heaviest weight pastel paper you can buy – something that will stand-up to a bit of a battering.

A final consideration is paper colour. Pastel papers come in a large variety of shades and although white is usually an available option; it is rarely a good choice. Coloured papers are preferable for a number of reasons. Unlike paints, pastel work often allows some of the surface of the paper to show through. Choose a paper colour that is sympathetic to the overall colour of the painting you want to make, and the background colour will serve to compliment and subtly unify your picture. The paper colour you choose will also help to set a mood for the picture. Finally, in the same way that painters normally lay-down a base colour on a white canvas (as a first step in their painting), choosing a coloured paper has the same effect (you’re on your way before you even start to draw).

Getting the pastel on to the paper requires techniques above and beyond simply drawing on the surface. Once you have made a mark, you normally need to do something further – bend, smudge, fix, erase/clean-up, etc. You can use your fingers, but a few simple tools do a much better job.

Torchillons (or paper stumps) are good for “fixing” and “short” blending. What I mean by fixing (in this context) is pressing the pastel into the paper so that it is less inclined to smudge, and/or has a sharp defined edge (e.g. for detailed work). What I mean by short blending is where you wish to smudge over a small distance (e.g. to blend two different colours along their border).

A brush is great for softer blending (a graduation of colour or tone). While a torchillon pushes the pastel into the tooth of the paper, a brush lifts and carries the pigment, so you achieve a more gradual blend.

It is also possible to buy something called a “colour carver” (best described as a pointy bit of rubber with a paint brush style handle). These perform like a super torchillons (they really push the pastel into the tooth). They also act like a wet-on-wet paintbrush, and permit thickly laid pastel to flow like paint. However, over do it, or press too hard, and they act like an eraser (a job normally best left to an eraser).

Talking of erasers, you’ll need one of these too. It isn’t there to correct mistakes; it is necessary for cleaning-up (because pastel doesn’t tend to stay where you put it). The best type is a putty eraser. These are very soft and can be pinched into points or thin edges to take out tiny dots or thin lines of colour from your picture, without doing any damage to the paper.

What about sharpening pastel pencils? The options are knives, sandpaper, pencil sharpeners. Opinion varies, but I use a good pencil sharpner (when I absolutely need to) and accept that pastel pencils don’t last forever.

Pastel painting is a very messy business. I often think of pastel work as painting with dust. This is why it’s best to use the tools described above, rather than rely on fingers. Get your hands dirty and you will inevitably make a mess.

Guess what? There is even more equipment you can acquire to help deal with the dust problems, but before I get into that, I think I need to explain the dust issue a bit more. It doesn’t matter what type of pastels you use, what type of paper you work on, or how much you push and blend the pastel into the tooth, the fact remains that some of it will grab, and some of it will just sit on the surface of the paper as dust. The problem is that the dust is going to move at sometime and pollute its surroundings. For example, black next to white is going to drift and grey the white, while the white will waft onto the black and lighten it.

One solution is a pastel easel. These tilt forward, so the dust will mainly fall onto the ground below. However, if you don’t like “doing it standing up” (so to speak), this may not be the answer. I “do it flat”, and use scrap paper to cover the areas of my picture that I’m not working on (in the style of a surgeon). It’s not foolproof, but it helps a little. Some advocate blowing across the surface of the paper to shift dust (but you need to take care not to accidentally spit) or use compressed air (sold in spray cans) instead. When I blow, I carefully choose the best direction in which to blow the dust; the one that causes the least damage to sensitive colours. I try to blow only when I absolutely must: it removes dust, but also spreads it.

The final bit of equipment you may need is a fixative spray. Opinion is divided on the use of fixatives. Pastel is possibly the most permanent media there is. There is no oil to cause darken or cracking. The pigments are far more permanent that their watercolour counterparts. The only weakness is the detachment of the pigment from the paper though rough handling. Some say, give the picture a good shake, and frame it under glass. My picture framer says he hates framing unfixed pastels.

There is no doubt, fixative does dull pastel, but it has a number of positive benefits. The first is …. it fixes pastel and stops the dust. The second is that it can be used before a painting is finished to renew the gab of a paper. When you just cannot get any more pastel to stick to the paper, spray with fixative and the problem is solved. Thirdly, it allows control over what you do and don’t want to smudge (e.g. when overlaying colours). Don’t use hair spray (except on your hair): use a purpose made pastel fixative. Don’t over do it (in terms frequency and amount). Paint for as long as you can before fixing unfinished work. Apply several light coats rather than one heavy one. Re-work highlights as the final step of any painting, and don’t fix these.

Portrait artist working mainly from clients’ own photographs. Portraits by John Burton

Painting Tips To Help You Decide Which Paint To Use

How to choose between oils, acrylics, watercolours and pastels

One of the very first decisions you must make when you start painting is what sort of paint (also called medium) to use. The following information is intended to be informative and help you decide between the most commonly used paints.

What is paint and what is the difference between each type of paint?

The brief technical bit!

Paint is a dispersion of pigments, resins and fillers in a liquid carrier. By varying the basic ingredients the different types of paint can be created.

Oil Paints

Oil paints as the name suggests contain oil. This is usually a natural vegetable oil such as linseed or a synthetic hydrocarbon made from oil.

The oil is the carrier used for the pigment and resins (alkyd). The pigments provide the colour which can be in the form of a soluble dye or an insoluble powder finely dispersed in the liquid. The various colours are produced from one or several pigments mixed together. By varying the different amounts, not only the different colours, but different shades and hues can be produced.

The resin is dissolved in the oil and acts as a binder for the different ingredients and to, and also binds the paint to the surface that it is applied to.

When the liquid evaporates after application, the resin and the pigments remain and form a skin which sticks to the painting surface.

Acrylic Paints

Acrylic paints are similar in make-up to oil paints, i.e. they are similar in appearance and contain a liquid carrier, pigments and resin. However, the liquid used is water.

The resin is not the same type as in oil paints, because it has to combine with water. The acrylic resin does not dissolve in the water but forms an emulsion (forms globules). When the water evaporates the globules of resin stick together to form a skin. The pigments used must also combine with water and so are chemically different than oil pigments.

Watercolours

Watercolours consist of pigments, filler and water if they are in liquid form, or just pigment and filler in they are solid. As they have no resin component to bind the pigments and form a skin, they rely on the surface they are applied to, to be absorbent. A filler is a fine powder which can be used as a carrier for the pigment and provides texture/body.

Pastels

Pastels are a solid paste form of water-colour. Far less water is used in their manufacture (when compared with liquid paints), and water soluble binders are used to maintain their solid paste form. Oil based pastels are similar with far less oil used than used in making oil paints.

What are the practical differences between the different types of paints?

Oils:

• dry slowly allowing time to work and to blend colours. The temperature of the air you are working in, and the proportion of thinner used dictates the drying time
• can be used to produce texture by building layers
• once dried sufficiently, can be over-painted without disturbing underlying layers
• rich, deep colours which maintain their intensity when dry, so can be left unfinished and returned to later without a change of colour
• can be used thickly or in thin, smooth washes increasing the scope for different painting techniques
• colours are resistant to bleaching by sunlight and surfaces can be cleaned of dirt with methylated spirits
• completely water proof and resistant to the elements
• require brush cleaner/white spirits to clean brushes
• usually applied to non absorbent surfaces including board, wood, coated paper and canvas

Acrylics:

• dry fast but still allows time to work and to blend colours. Can be a disadvantage when working with thick applications in hot environment
• less viscous than oils so easier to mix but tend to produce less texture and brush strokes
• can be mixed with water or other mediums/gels which are compatible with water
• can be used thickly (impasto) like oils, or in thin washes, like waterclours, so can be used on both absorbent and non absorbent surfaces
• once dried can be over-painted without disturbing underlying layers
• water resistant when dry
• colours dry darker than when applied so can give problems with colour matching if left
• less resistant to sunlight that oils, surfaces can be cleaned of dirt with methylated spirits
• requires water to clean brushes, but can give difficulty if brushes dry prior to washing

Watercolours:

• mixed with water giving transparent colour
• dries fast and requires pre-wetting of the surface in hot environment
• strong tendency to bleed so good for general wash techniques but can be difficult for fine definition
• transparency makes it hard to rectify or hide mistakes
• colours dry lighter than when applied so can give problems with colour matching if left
• no white in watercolour painting, the white comes from the paper you are working on. So can be difficult to produce prominent white high-lights without preplanning or masking
• paint can be lifted off by rewetting so can be useful in some techniques, but can be difficult to use in wet conditions or in hot/dry conditions where rewetting is necessary
• brushes are cleaned easily with water and paint is reusable when dry by adding water
• colour intensity is less when compared with other media and tends to bleach in direct sunlight. Problems with dis-colouration to the support and the media can occur in damp conditions
• very difficult to clean the surface without damage so has to be protected from the elements under glass or other suitable material

Pastels:

• colours are mixed on the paper/support by over-laying or blending so no drying time
• easily used and require no brushes
• oil based pastels can be thinned and blended with turpentine, or scrapped off to reveal colours underneath, known as sgraffito
• a wide range of colour are available, however, usually a greater range of colours are required to create a picture when compared with other media
• different brands and pigments tend to vary in softness so difficulties can arise when obtaining supplies from varying suppliers
• soft pastel works tend to be liable to smudging and the colour coming off the support unless precautions such as fixatives or mounts are used to keep the surface away from frame glass

Other considerations:

Cost:

• Watercolours are the cheapest to set yourself up with and most budding artists start this way. However, watercolour requires different techniques to other media and can restrict development
• acrylics are not as expensive to buy as oils and can bridge the gap between oil and watercolour
• oils are more expensive to buy initially; however a little goes a long way when painting thinly. Several paintings can be produced from a single tube of each of the base colours

Hazards:

Oil Paints:

Some people are put off by oil paints because of the solvents involved; they may be allergic to the solvents or may not want solvents lying around when young children are about. However, oil paints themselves usually contain linseed oil as the carrier which has low odour and is essentially non toxic. The pigments themselves are bound by the oil and are not available to cause hazards. White spirits and turpentine used as thinners or brush cleaners are flammable and should be used sparingly. However the volume used is very small and the hazards are many times less when compared with the use of domestic household paints. Saying this, low odour versions of paints are available.

Acrylics:

Acrylics are the least hazardous as there are no solvents used and the pigments remain bound in the paint.

Watercolours:

Can be hazardous if traditional pigments are used because they are not bound by resin and dry to a fine powder. However the quantities used are so small that hazards are very minimal.

Pastels:

Similar to watercolours, however soft pastels can produce a lot of dust so care should be take to minimise the amount you inhale. For example, do not blow on your work to remove loose pastel.

Your choice of paint

Choose whatever paint suits you. Try them out and you will soon discover whether you enjoy working with it and the results you get or not. If you like certain properties of different paints, you can try working with a mixture of paints (known as mixed media) in one painting. The variation is both challenging and rewarding.

The advice and information above is meant as guidance to the properties of the different paints. The only way you will know if you like a particular paint is to try it.

Ian Antonio is the tutor at Creative Holidays Spain where you can learn to paint or improve your painting skills in the stunning rural landscapes of Andalucia near Ronda. All details can be found at: www.creative-holidays-spain.com