anyone can learn to draw Follow howtodrawit on Twitter

Sign up for a free drawing lesson every week.

SIGNUP BONUS: Get all the animal drawing tutorials on this site in a printable, downloadable pdf ebook.
Enter Your Email Here:  


Bookmark this site

MORE DRAWING TUTORIALS:

Rose
Dragon
Horse
Wolf
NEW: Fox
NEW: Bee
NEW: Wasp
NEW: Turtle
Betta fish
Draw animals from pears
Owl
Cat
Draw animals from alphabets
Frog
Parrot
Bird
Butterfly
Sheep
Pig
Swan
Penguin
Peacock
Lion
Rabbit
Cow
Dachshund
Seahorse
Tiger
Kitten
Monkey
Unicorn
Phoenix
Deer
Squirrel
Crocodile
Dinosaur
Whale
Duck
Giraffe
Snail
Koala
Angelfish
Elephant
Griffin
Walrus
Cocker spaniel
Poodle
Donkey
Chicken
Rooster
Porcupine
Kangaroo
Bear
Mouse
Octopus
Turkey
Goat
Camel
Hippo
Possum
Rhino
Centaur

Learn to Draw > Glue color painting


A medium which is handled in much the same way as impasto alia prima oils is opaque glue paint. Glue colors produce a dead mat effect, however, and can never rival the depth or luminosity of oils.

The difficulty here is that glue colors look distinctly darker wet than dry. This aspect is most pronounced in the medium hues, and means that the artist while still at work on a picture cannot know with certainty what the final effect will be. It requires some experience to use glue colors without spoiling a picture by constant retouching.

Half varnished patches show the difference in color between wet and dry glue paint

There are, moreover, technical limits, even where use can be made of impasto overpainting; glue paint applied too thickly is liable to break away from the ground, develop cracks, and crumble. Properly bound glue paint should be indelible when dry (but on no account contain too much glue). Assuming that such paint is used, it will adhere well, and hide the ground without caking.



Glue colors have greater hiding power than oils applied equally thinly. The reason for this is that oil holds the color particles permanently congealed, as it were, while glue solutions shrink noticeably in volume in the drying; when this happens on a big scale, the particles cling to the under layer like fine pebbles. Only when they are wet, therefore, can glue colors equal oils in depth.

Once the water contained in them has evaporated, leaving only the glue, the pebbled surface is left considerably enlarged and capable of reflecting more light. The color is al most as vivid as pigment in powder form, and its hiding power is correspondingly enhanced.

The theme was a travel sketch in watercolor. For the glue color version, white watercolor paper was primed with cobalt blue and cadmium red watercolors. To give an accurate rendering of this scene, high up over the Adriatic where pirates once nested, as it was imprinted on my mind, I compressed the composition somewhat, reducing the big shadows on the right and leaving out the bushes on the left A study of seventeenth and eighteenth century gouache still lifes with flowers, painted on a dark ground, demonstrates the truth of this. For oil colors to have the same hiding power, they must be applied much thicker. If you apply a little glue color to a glossy paper and then draw a hard pencil line across both the paper and the patch of color, you will find that whereas the pencil only leaves a faint mark on the shiny paper, it shows up clearly on the color patch, because the rougher surface of the pigment acts like sandpaper. Conversely, a patch of oil paint would become even glossier than the paper, and the pencil would give off hardly any particles of graphite at all.

To learn to judge how much glue colors will lighten in drying, you should try making a number of brush strokes in glue color, then half cover them with a thick coating of a varnish composed of pyroxylin and amyl acetate.

This experiment should not lead you to suppose that you can impart a darker hue to a finished glue painting by var. nishing it over. What occurs in this case cannot be gauged in advance, nor can it by any means be regarded as a comprehensive painting technique. The picture is robbed entirely of its essential charm, and with it a large part of the artist's inspiration. The same thing happens to watercolors when they are varnished. Conversely, the chalky tone of an opaque glue painting can render effects which are virtually unobtainable in any other medium, although not altogether unlike a certain type of pastel.

Stage 1: The background and light areas were covered with titanium white, lightly tinted. This resulted in greater brilliance for the luminous colors to follow. The priming color was mixed from the start in the main shadow tone, and this was largely left. It could be further varied, as necessary, by the use of pale glazes

Glue painting, then, has its own characteristics; but quite apart from this, it is well suited to sketching and to preliminary sketches for oil and true tempera painting-far more so than watercolor, for example. It should be noted that while watercolors must be applied on a wet ground, glue color, which is equally direct in its application, has the advantage of always being painted on a dry ground, so that, despite rapid execution, the paint underneath never runs or smudges.

The most suitable support for this medium is cardboard. Paper that is less than 14 ply buckles when painted and remains buckled even after the paintwhich varies in thickness-has dried out. This may occur with cardboard, too, and depends on the quality of the board and the way the paint is used. For this reason, pasteboard, or a synthetic fiber board with good quality paper of the required thickness glued to it, provides a better support. In addition, any support which is good for oil painting will serve the purpose, as long as it is properly prepared to receive glue color. The final choice of a support is determined by the format and by the artist's aims.

Similar considerations determine whether to leave the ground white or to tint it. The best and easiest way to tint paper is to apply a very runny watercolor with a flat brush from two to four inches wide, known as the blending brush, moving it back and forth over the paper. To do this, the support must lie flat to avoid collecting paint at the bottom edge, thus ensuring that the surface is kept fairly even.

Stage 2: The colors are everywhere uniformly intensified, and it would have been possible to complete the work boldly at this stage. Stage 3: Too much elaborate detail at this stage marred the artistic effect. This shows that one can never stop too soon; and also that watercolor work does not transpose
into other media. Despite the exaggerated shadows, the white from the previous sketches shows through and loosens the whole composition. The correct way to obtain this effect in glue colors would have been to paint directly on to un primed white cardboard. Ordinary bought tempera colors were used for this picture
It is also possible to tint the glue ground with pastel chalk. When this is done, however, shellac should not be used for fixing, as glue colors do not adhere well to this fixative and flake off with repeated overpainting. A weak glue solution, such as gum arabic, tragacanth, or skim milk, makes the most satisfactory fixing agent; carpenter's glue is not good, as it cools down too much in the spraying and sets prematurely. The glue must be thin enough to travel up the blowpipe.

The spraying calls for particular care, since water stays on the paint surface longer than the alcohol in shellac, which evaporates more speedily. As soon as the medium has been rendered indelible, work can proceed as with alia prima oil painting. The same palette and brushes will do, and water may be used for thinning and washing.

Next: Glue color painting continued

how to draw cartoons

Draw Cartoons

If you're worried about not having enough artistic "talent", try some free cartooning lessons. You'll be drawing and laughing in no time flat.


coloring pages

Coloring Pages

Free printable coloring pages for kids.


magic tricks for kids

Magic Tricks for Kids

50 tricks and that anyone can do. Puzzles and brain-teasers, too.


Home | contact | about | privacy | blog | sitemap | © 2012 City Different Marketing LLC
Disclosure: Sometimes we are compensated for purchases made from links on this site. Click here for details.