All this month, we’re focusing on various techniques for blending colored pencils. This week, the topic is blending colored pencil with rubbing alcohol. The sample drawing is on Stonehenge paper, but the method works with other types of paper, as well.
I also used an old oil painting bristle brush as a blending tool, but other brushes can also be used, as well as cotton swabs, cotton balls, or even folded paper towel.
I’ve also written on this topic for EmptyEasel. Read How to Blend Colored Pencil Drawings with Rubbing Alcohol here.
Preparing to Blend with Rubbing Alcohol
Blending with rubbing alcohol is very easy and straight forward. All you need is household rubbing alcohol. I’m using 91% alcohol, but you can use a weaker solution if that’s what you have.
You’ll need an ordinary paint brush. I use an old oil painting bristle brush that has been worn down, so is quite short and stiff. That type of brush gives me a lot of control, especially when working around edges that won’t be blended.
If you have an old brush you want to use, make sure it’s well-cleaned and contains no residue from previous uses.
If you prefer to buy a new brush, that’s also acceptable. I use a #6 for this drawing, but any similar sized brush will work. A bristle brush is probably also going to work best, but if you’re more comfortable with a softer brush, you can use that, as well.
Pour a small quantity into a small container. A glass container is best. If you have a capped container in which you can store rubbing alcohol permanently, that’s your best option. Label the jar and cap it after each use to keep the rubbing alcohol from evaporating.
If you don’t have a capped, seal-able container, you’ll want to dispose of the rubbing alcohol after you’ve finished with it. Do NOT pour it back into the original container because it will contain some residue of colored pencil.
TIP: Whenever using any solvent to blend colored pencil, make sure to work in a well-ventilated area. I like to work outside when conditions allow. Cover the solvent as soon as you finish with it and allow your drawing to air dry completely before continuing work.
Blending Colored Pencil with Rubbing Alcohol
To blend with rubbing alcohol, dip your brush into the rubbing alcohol, and apply it to a small portion of the drawing. You can either pool it on the paper and allow it to sit a moment before brushing it out, or you can brush it out at once, which is what I usually do.
TIP: Don’t scrub the paper or you risk damaging the surface. Stonehenge is quite sturdy and can take a lot of punishment, but it can still be damaged.
Work over all of the background, including the circles. Use circular strokes within the circles and around their edges to avoid streaking the lighter colors with darker colors.
After you’ve finished blending, damp dry your brush on a piece of paper towel. If no pigment comes off on the paper towel, the brush is ready for the next use.
If pigment does appear on the paper towel, wash the brush with ordinary soap and water, press it dry with paper towel, then lay it horizontally to dry.
You must also allow the paper to dry completely before drawing again.
Tips for Blending with Rubbing Alcohol
Rubbing alcohol blends are usually not smooth and seamless, especially if you’re blending a larger area, such as with this drawing. This illustration shows in greater detail the streaking that can happen when you blend a darker color over a lighter color. Unless that’s the look you want, it’s best to blend each color separately.
Here’s another detail. In this area, the streaking is simply the result of brushing. The colors are all close enough that they can be blended together without causing problems, but the blending itself can produce this hazy appearance and some streaking.
This is how the entire drawing looked. Not bad, but not ideal, either.
There are easy fixes for this kind of streaking.
First is coloring over the blended background. The advantage to using rubbing alcohol to blend is that you can easily draw over it again with colored pencil, and cover those areas of streaking. Use light pressure and even strokes to smooth out the color.
You can also blend again without adding more color if you wish. I will eventually add more color to the background, but didn’t want to do that until I’d worked on the horse, so I blended the background a second time without adding more color.
This time, I stroked vertically over all of the background. On the top, I started at the top of the paper and stroked to the horse. On the bottom, I started at the horse and stroked to the bottom of the paper.
The end result was much more satisfactory and will be easier to adjust when the time comes. For now, however, I’m considering it finished.
When I need to do a solvent blend, this is my first choice. I have used turpentine and rubber cement thinner and have had very good results, but I much prefer rubbing alcohol.
This method works with odorless paint thinner, turpentine, or rubber cement thinner. In all cases, make sure to use proper precautions and work in a well-ventilated areas.