What Are Oil Based Colored Pencils? | Oil vs Wax Guide · HQ Color

You've been coloring for a few months now. Your wax based colored pencils have served you well—thick strokes, quick coverage, that satisfying buttery drag across the page. But lately you've noticed your blending looks waxy and chalky, and no YouTube tutorial seems to solve it. Then someone in an art forum mentions oil based colored pencils, and suddenly everyone sounds like they're speaking a different language.

Here's what you're actually asking: what are oil based colored pencils, and why does everyone seem to treat them like some secret weapon? In this guide, you'll learn exactly what makes them different, how they perform on paper, and whether swapping your current set makes sense for your style. No fluff, no brand wars—just the honest mechanics of how these pencils work.

What Exactly Is an Oil Based Colored Pencil?

At its core, a colored pencil is pigment held together by a binder—the substance that keeps the color in a solid pencil form and transfers it to paper when you draw. Most people never think about this binder, but it determines almost everything about how a pencil feels and performs.

Oil based colored pencils use, as you might guess, an oil-based binder. Typically this means refined linseed oil, soybean oil, or a similar non-drying petroleum derivative. The pigment is mixed with this oil and fillers, then encased in a wooden barrel (usually cedar, pre-sharpened and ready to go). The result is a pencil with distinctly different characteristics than its wax-based cousins.

The first time I picked up a Caran d'Ache Luminance pencil—admittedly after months of dismissing "professional" supplies as overpriced—I was genuinely surprised. The stroke felt silky rather than creamy, and when I layered it, the colors merged like watercolors instead of stacking like crayon. That moment of realization made me curious about exactly why the experience was so different.

The Binder Difference: Why the Core Material Matters

The binder is the unsung hero (or villain, depending on your perspective) of colored pencil performance. It determines:

How smoothly the pigment transfers to paper
How hard or soft the core feels when you press
How well colors blend together
How the pencil holds a sharp point
How the artwork ages over time

Wax based pencils use—surprise—a wax binder, typically microcrystalline wax or similar compounds. Wax holds pigment well and creates that characteristic creamy laydown, but it has limitations. It tends to wax bloom (a hazy whitish layer that rises to the surface over time), it smudges relatively easily, and heavy layering can create a waxy buildup that resists further work.

Oil based pencils sidestep many of these issues. The oil binder doesn't wax bloom, creates a harder core that maintains a sharper point through more work, and blends in a fundamentally different way—colors merge rather than overlay. The trade-off is that the initial stroke feels less immediately satisfying, and the pencil requires slightly more pressure to achieve deep saturation.

How Oil Based Pencils Feel and Perform

Let me be specific about the tactile experience, because "smoother" and "creamier" are meaningless without concrete details. When you draw with an oil based pencil on 110gsm marker paper:

The first stroke feels almost dry—a light scratch that builds as you continue. This initial resistance disappears after a few seconds of work as the oil in the core begins to interact with the paper tooth. The color lays down in a thin, even layer rather than a thick waxy patch. If you pause and touch the stroke, it doesn't smear the way wax does.

Layering is where oil based pencils genuinely shine. The second layer doesn't sit on top of the first—it merges with it. You can blend two completely different colors together with a blending stump or your finger, and they'll create a third, unified color that looks natural rather than streaky. After about thirty minutes of work on a botanical illustration, I found myself wondering why I'd ever fought with wax pencils to achieve the same effect.

The core hardness also matters for detail work. An oil based pencil at the same price point as a wax based competitor will typically hold a sharp point two to three times longer. For the fine veins in a leaf or the whiskers on a cat portrait, this means less sharpening interruption and more consistent line quality.

Oil vs Wax Based Colored Pencils: A Direct Comparison

Characteristic	Oil Based Pencils	Wax Based Pencils
Laydown texture	Smooth, silky, even	Creamy, thick, opaque
Core hardness	Harder, holds sharp point longer	Softer, dulls faster
Blending behavior	Colors merge and unify	Colors layer and can streak
Erasability	Moderate—better when fresh	Good—easier to lift
Smudge resistance	Better once cured (24-48 hrs)	Lower—waxes stay malleable
Wax bloom risk	None	Possible over time
Ideal use	Detailed, layered, realistic work	Quick coverage, bold strokes, beginners
Typical price range	$3-12 per pencil (professional)	$0.50-3 per pencil (craft)

Neither column represents a "winner"—these are simply different tools. A watercolour-sketching friend of mine uses wax pencils for quick outdoor studies because she wants that immediate, expressive stroke. I reach for oil based pencils when I'm spending three hours on a single flower and need the colors to behave like paint.

When to Reach for Oil Based Colored Pencils

If you're working on detailed illustrations where line quality matters—botanical drawings, architectural sketches, realistic animal portraits—oil based pencils reward the extra investment. The harder core means you can achieve ultra-fine details without the tip crumbling, and the blending behavior creates that seamless, painterly quality that makes colored pencil work look like "real" art rather than "coloring book art."

They're also excellent for work that needs to last. If you're creating art to sell, frame, or give as a gift, the absence of wax bloom means your work will look the same in five years as it did on day one. Oil based pencil work also responds well to archival framing without the special considerations wax pieces sometimes require.

However, skip oil based pencils if you're primarily using adult coloring books with thick black outlines and bold designs. The smooth, even laydown of oil pencils can feel underwhelming on pre-drawn designs where thick, opaque coverage is actually an asset. You won't notice the blending advantages in that context, and you'll pay three times the price for a experience that's actually less satisfying. If you're browsing the full range of colored pencils for every skill level and budget, start with wax pencils for coloring books and save oil pencils for freehand work.

For beginners building their first real art kit, oil based pencils have a learning curve. They're less forgiving of heavy-handedness, and the blending techniques that make them special require practice. I spent my first week with them thinking they were defective because I was pressing too hard. Once I lightened up, everything clicked—but that adjustment took intentional effort.

Common Misconceptions About Oil Pencils

"Oil based means they'll never dry." False. The oil binder in artist pencils is refined and stable—it doesn't "dry" in the traditional sense, but the pencil mark becomes permanent and stable within a day or two. Your artwork won't stay tacky.

"They're harder to use." Partly true, but it's more accurate to say they're different to use. The learning curve is real, but the techniques aren't more difficult—just distinct. If you can use wax pencils, you can learn oil pencils.

"All expensive colored pencils are oil based." Not necessarily. Some expensive brands (like Prismacolor Premier) are wax based and renowned for their quality. Price correlates more with pigment load and build quality than binder type alone.

"Oil based pencils work on any paper." They perform best on paper with medium tooth—too smooth and the stroke feels slick, too rough and you'll burn through cores quickly. Around 100-150 gsm cardstock or mixed-media paper designed for colored pencil work is ideal.

Tips for Getting Started with Oil Based Pencils

If you're ready to try oil based colored pencils, start with a small set rather than a 72-piece collection. You don't need to commit to a Soucolor 72-Color set review scenario to explore the category—a 12 or 24 pencil set from a reputable brand lets you feel the difference without breaking the bank.

Reduce your pressure. This is the single most important adjustment. Wax pencils reward firm pressure; oil pencils reward patience. Start with light strokes and build up gradually—you'll get richer, more blended results.

Invest in a good sharpener. The harder core of oil pencils demands a quality sharpener. Cheap sharpeners crush the core or create an uneven bevel. A well-regarded tabletop sharpener (not the little plastic ones bundled with craft sets) makes a significant difference in your experience.

Use a lightbox or blending stump for color transitions. The smooth blending behavior of oil pencils is most apparent when you actively work colors together rather than leaving them to overlap. A blending stump and some practice will unlock what makes these pencils special.

Don't expect immediate gratification. When I first switched, I was disappointed that my initial strokes didn't look as bold as my wax pencil work. Three hours later, with multiple layers and careful blending, the final result made me delete my initial judgment. Oil pencils reward the process.

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Final Thoughts

Oil based colored pencils aren't a luxury upgrade—they're a different tool for different goals. If you value detail, longevity, and seamless blending in your artwork, they're worth understanding and eventually trying. If you love bold strokes, quick coverage, and forgiving media, wax pencils probably serve you better. Many serious artists eventually own both and reach for each depending on the project.

The next time you're shopping for art supplies, you'll know exactly what you're buying when you see "oil based" on the label—and that's knowledge that makes every dollar spent more intentional.