Oil Pastel vs Soft Pastel: Which Should You Choose? (2026)
Choose oil pastels if you want a beginner-friendly, creamy, low-mess medium that blends without fixative and works on mixed-media or pastel paper. Choose soft pastels if you want a dry, powdery, high-pigment medium for portraits, landscapes, and framed artwork. The biggest difference is binder: oil pastels use wax and mineral oil, while soft pastels use a dry gum binder. That one chemistry difference changes the paper, blending, storage, and cleanup.
Which pastel setup should you buy first?
- Best first oil pastel set: Paul Rubens Classic 50-Color Soft Oil Pastel Set for creamy blending and strong color range.
- Best softer color mood: 48 Macaron Color Oil Pastel Set for dreamy illustration, journaling, and light palettes.
- Best paper for both: 240gsm acid-free pastel paper so pigment has enough tooth to hold layers.
An oil pastel is a stick of pigment bound by non-drying wax (typically paraffin or microcrystalline wax) mixed with mineral oil. It never hardens on the paper; it sets physically, not chemically. A soft pastel is pigment bound by a small amount of gum tragacanth (a water-soluble plant gum), pressed and air-dried into a fragile chalk-like cake. Different binders, different behavior, different paper, different storage. Everything else downstream — fixative, blending, layering, framing — flows from that single chemistry split.
The Real Difference: It Is Binder Chemistry, Not Just "Oily vs Dusty"
Most guides stop at "oil pastels feel greasy, soft pastels feel chalky." That is true, but it is the symptom, not the cause. What actually drives every behavior — the blend, the layer count, the archival plan, the paper you need — is what is holding the pigment together. Oil pastels use a wax-oil binder that never hardens; soft pastels use a tiny fraction of gum tragacanth that barely holds the stick together at all.
This single split explains why you can blend oil pastels with a rag weeks after the drawing is "done," and why you cannot carry a finished soft pastel piece flat in a folder without losing colors to the opposing page. Sennelier, a French house that has made both mediums since 1887, notes that the two products are formulated and stored on separate production lines because their raw material and environment requirements do not overlap (Sennelier).
A Quick Vocabulary Fix: "Soft Pastel" ≠ "Chalk Pastel" ≠ "Oil Pastel"
The pastel aisle confuses three categories under two names, so a short glossary is worth the detour before we start comparing them.
- Soft pastel (sometimes labelled "artist pastel" or "extra-soft pastel"): pigment + a small binder, dry cake. What most art schools mean when they say "pastel."
- Chalk pastel: an informal term, often the same as soft pastel in English-speaking markets. Historically it meant a harder, cheaper stick with more chalk filler. Today "chalk pastel" usually signals a student-grade soft pastel with lower pigment load.
- Hard pastel: same binder family as soft pastel, but with more gum tragacanth, pressed firmly. Used for detail lines and early layers under soft pastel.
- Oil pastel: wax + mineral oil + pigment. A completely different medium. Never interchanges with any of the above.
- Pastel pencil: a hard pastel core in a wooden barrel. Compatible with soft pastel for line work.
For this guide, "soft pastel" means the extra-soft, dry-cake product that most artists use. "Oil pastel" means the wax-oil stick. Everything else sits in the glossary above.
Head-to-Head: 10 Criteria That Actually Matter
Forget the vague "kids use oil pastels, artists use soft pastels" line. Below are the ten dimensions that decide which medium suits your work, with factory numbers where we have them.
| Criterion | Oil pastel | Soft pastel |
|---|---|---|
| Binder chemistry | Non-drying wax + mineral oil | Gum tragacanth, dry cake |
| Pigment load (% by weight) | ~55% (artist-grade) | 75–85% (artist-grade) |
| Feel on paper | Creamy, buttery, drag and plow | Dusty, velvety, lightest touch lays colour |
| Drying / setting | Never truly dries — stays workable for years | Never binds — held by tooth of the paper alone |
| Paper required | Anything with some tooth; oil pastel paper, mixed-media, pastel paper | Sanded or velour pastel paper (Clairefontaine PastelMat, UArt, Art Spectrum Colourfix) |
| Fixative | Not needed for binding; finish varnish is optional | Required between layers and for finishing, or framed under glass |
| Blending tools | Finger warmth, solvent (odourless mineral spirits), blending stumps | Finger, tortillon, soft brush, chamois |
| Layer depth | High — oil pastels accept dozens of layers once warmed | Moderate — the paper fills up quickly; sanded paper extends to 6–10 layers |
| Archival behavior | Stable with varnish; can attract dust if left bare | Stable under glass; fragile in a folder |
| Best entry point | Beginner-friendly, forgiving, no special paper needed | Steeper learning curve, paper and fixative add cost and technique |
Paper Is Half the Medium (Especially for Soft Pastel)
If you only remember one practical difference from this guide, make it the paper. Oil pastel will draw on almost anything with a little tooth — copy paper, sketchbook pages, mixed-media blocks, even primed canvas. Soft pastel without the right paper is barely a medium. The pigment is held by the micro-tooth of the surface; if there is no tooth, the pigment falls off.
Artist-grade soft pastel work happens on one of four paper families: sanded pastel paper (UArt, Clairefontaine PastelMat, Art Spectrum Colourfix), mid-tooth pastel paper (Canson Mi-Teintes, Hahnemühle Velour on the velour side), velour paper for extremely soft, dusty finishes, and primed panels prepared with pastel ground. Regular drawing paper and watercolor paper both underperform badly — four or five layers in, you are pushing pigment around rather than adding to it.
Oil pastel is more forgiving here but still rewards the right paper. Our guide on picking paper weight covers surface weight and tooth in depth — most of the same logic applies to pastel paper, with the added requirement that soft pastel needs noticeable abrasive tooth.
Fixative: Required for One Medium, Optional for the Other
Fixative is a thin acrylic resin spray that glues pastel particles to the paper. For soft pastel it is effectively part of the workflow; for oil pastel it is a finish varnish choice, not a binding requirement. This is one of the most misunderstood parts of the pastel aisle.
Soft pastel fixative. Apply a light workable fixative between major layers (after layers 2 and 4 on a typical piece) to seal the dust and recover tooth. Apply a final workable or matt fixative at the end. Every fixative darkens colour slightly — factor this into the final layer. Pastelists who frame work under glass without spacers often skip final fixative entirely, relying on the glass to protect the surface.
Oil pastel finish. A dedicated oil-pastel fixative (Sennelier D'Artigny is the common artist-grade choice) is a wax-based varnish that locks the surface without dulling colour as much as acrylic sprays. It is optional. Most oil pastel work survives fine with careful storage alone, as long as nothing presses on the surface.
Use-Case Matrix: Which Medium Wins When You…
No medium wins every scenario. Here is the honest breakdown we see in customer behavior data across five common use cases.
| Scenario | Winner | Why |
|---|---|---|
| Absolute beginner or child first trying colour | Oil pastel | Works on any paper, no fixative, no dust, hard to make a total mess. |
| Soft portrait or landscape with atmospheric blending | Soft pastel | Velvet-edge blending, pure pigment, no wax residue. |
| Bold, impasto, van Gogh-style expressive work | Oil pastel | Layers thickly like paint, takes solvent for wet-into-wet effects. |
| Plein-air travel kit | Oil pastel | No fixative, no sanded paper, no glass, the kit fits in a pencil case. |
| Gallery-level finished piece for framing | Soft pastel | Higher pigment load, finer detail with pastel pencils, archival under glass. |
How to Blend Oil Pastels Without Turning the Paper Into Mud (Step by Step)
The most common beginner frustration with oil pastel is over-blending: the colours mix into a grey-brown haze instead of the clean gradients you wanted. The fix is the order and temperature of the blend, not the effort. A surprising amount of oil pastel technique is about keeping the layers distinct long enough to control where the blend happens.
- Lay base colours firmly but thin. A thin first layer with hard pressure keys the paper. A thick first layer traps air pockets that skid under later strokes.
- Overlap, do not smear. Lay the second colour so its edge sits on top of the first by a few millimeters. Do not rub yet. Oil pastel blends optically as much as physically.
- Warm the stick, not the paper. If the pastel feels hard, hold it in your palm for ten seconds before the blend pass. Warmer wax spreads with less friction, which keeps the lower layer intact.
- Blend with a clean stump or fingertip in one direction. Round-trip rubbing grinds pigments into mud. One direction, short strokes, wipe the stump on a rag between passes.
- Optional: feather with odourless mineral spirits. A clean brush with a drop of OMS turns oil pastel into a glaze. Use sparingly — too much solvent lifts colour off the paper rather than smoothing it.
Soft pastel uses a different blend ladder entirely: a finger for broad areas, a tortillon (tight paper stump) for tight spaces, a chamois for erasing, and a soft dusting brush for moving pigment around before committing. Do not use solvents with soft pastel — they do nothing useful and often damage the paper.
Common Mistakes Artists Make With Both Mediums
- Storing oil pastels in a hot car or sunny window. Wax-oil binder softens from 32 °C and bleeds into neighbouring colours. Store oil pastels flat, in a cool, dark place.
- Transporting soft pastels in a stack of loose paper. Anything pressed against a soft-pastel drawing lifts pigment. Ship under glassine sheets or in a rigid pastel box.
- Using fixative on oil pastel as if it were soft pastel. Acrylic fixative on oil pastel yellows and cracks as the underlying wax moves. Use a dedicated oil-pastel fixative or skip it.
- Expecting soft pastel to layer on cartridge paper. Three layers in, the tooth is gone and no more pigment attaches. Sanded paper is not an upgrade; it is the baseline.
- Blending oil and soft pastel on the same drawing. The wax in oil pastel prevents soft pastel layers from keying to the paper. Pick one medium per piece.
What the Label Actually Tells You (For Either Medium)
Before choosing between oil and soft pastel, the bigger decision is artist-grade versus student-grade. Format matters less than grade — a premium oil pastel and a premium soft pastel from the same factory can both deliver clean mixes, while a cheap stick in either medium reveals itself within the first three layers. Here is what to look for on the wrapper regardless of brand.
Pigment code (PB29, PR108, PY35). Artist-grade sticks print pigment codes on the wrapper or on a backing card. Single-pigment colours mix cleaner than multi-pigment "hue" names. Student-grade pastels often list only a marketing name and skip the code entirely.
Lightfastness rating (LF I / LF II or ASTM grade). This tells you how many years the pigment holds colour under normal indoor light. LF I (ASTM I) is archival — a century without visible fade. LF III and below are decorative only. The rating is the same standard across both mediums; the number does not change with the binder.
Pigment load statement. Reputable brands either print the load percentage or publish it in a datasheet. Oil pastels under 50% and soft pastels under 70% are almost certainly student-grade. Paul Rubens publishes its load numbers and stabilizes them across runs.
Binder note (oil pastel only). Look for "non-drying mineral oil" or "microcrystalline wax" on artist-grade oil pastels. Cheap student oil pastels sometimes use drying oils or paraffin-heavy mixes that harden on the paper and resist later blending.
Factory takeaway: read the wrapper before the price tag. Format is the comfort decision; grade is the quality decision. Pick the grade first, then pick the medium.
Product Recommendations (Three Honest Options)
Below are three Paul Rubens recommendations. We make both oil and soft pastel lines; the picks below cover the two most common entry paths plus the one accessory most beginners skip and regret skipping.
Paul Rubens Classic 50-Color Soft Oil Pastel Set
Fifty artist-grade soft oil pastels in our Classic range. Creamy wax-oil binder at around 55% pigment load, balanced for buttery coverage on mixed-media paper and forgiving blends. The colour spread covers the full wheel plus greys and earths.
- 50 buttery oil pastels in a protective tray
- Blends with fingertip, stump, or mineral spirits
- Works on mixed-media paper, oil pastel paper, or primed canvas
- Best for beginners, impasto work, travel sketching, classroom use
Paul Rubens 48-Color Macaron Soft Oil Pastel Set
Forty-eight macaron-tone oil pastels for soft, dreamy colour palettes — pastel pinks, mints, lavenders, peaches, and creams that are tough to mix cleanly from a primary-heavy set. Same creamy wax-oil binder as the Classic range.
- 48 macaron and pastel-tone oil pastels
- Ideal for portraits, florals, and gentle landscapes
- Blends cleanly into the Classic range for a wider palette
- Best for gift buyers, portrait artists, and pastel-aesthetic work
Paul Rubens A5 Pastel Paper — 112 lb / 240 gsm, 30 Sheets
Thirty sheets of acid-free A5 pastel paper at 112 lb / 240 gsm, formulated to accept both oil pastels and hard or soft pastels. The surface has enough tooth to key soft pastel for 6–8 layers and enough weight to take oil pastel without buckling.
- 30 sheets, A5 (5.8 × 8.3 in), 112 lb / 240 gsm
- Acid-free, archival
- Dual-medium tooth — suitable for oil, hard, and soft pastels
- Best for beginners buying one paper that works for both mediums
If you are still deciding whether pastel is the right first medium at all, our companion guide on getting started with acrylics covers the other common entry point — different trade-offs, different learning curve, different finish. For the full oil pastel range we make, see the Paul Rubens oil pastels collection.
FAQ
Is oil pastel better than soft pastel?
Neither is universally better. Oil pastel is more forgiving, works on almost any paper, needs no fixative, and is the easier entry point for beginners or travel. Soft pastel has higher pigment load, finer detail with pastel pencils, and is the standard medium for gallery-framed archival work — but it requires sanded or velour paper and a fixative workflow. Many artists keep both on the shelf for different subjects.
Can you use oil pastels on soft pastel paper or vice versa?
You can use oil pastels on soft pastel paper — the tooth is more than enough. You should not mix oil pastel and soft pastel on the same drawing, because the wax from the oil pastel prevents soft pastel from keying to the paper. Soft pastel on plain drawing paper or watercolor paper underperforms badly; three or four layers in, the tooth is gone and no more pigment attaches. Sanded paper, velour, or Canson Mi-Teintes are the baseline surfaces.
Do oil pastels dry?
Artist-grade oil pastels never truly dry. The wax-and-mineral-oil binder sets physically as it cools, but it stays workable for years. You can blend, lift, or rework an oil pastel drawing a month after you stopped. Student-grade oil pastels sometimes use paraffin-heavy mixes that harden on the paper and crack — this is a quality indicator, not a feature.
Do I need fixative for soft pastels?
Yes, in practice. Soft pastel has almost no binder of its own; the drawing is held by the tooth of the paper. A light workable fixative between layers preserves tooth and locks dust; a final workable or matt fixative protects the finish. Alternatively, frame the piece under glass with spacers and skip the final spray. Oil pastel does not need fixative for binding — a wax-based oil-pastel varnish is optional for gloss and protection.
Which is better for beginners, oil pastel or soft pastel?
Oil pastel. It works on almost any paper, needs no fixative, creates little dust, and is hard to ruin on the first attempt. Soft pastel requires sanded paper (Clairefontaine PastelMat, UArt, Art Spectrum Colourfix, or similar), a fixative workflow, and storage under glass or glassine, which is more equipment, cost, and technique before you can judge whether the medium fits you.
Can I blend oil pastels with water?
No — oil pastels are wax-and-oil based and do not dissolve in water. Use your fingertip, a blending stump, or a drop of odourless mineral spirits on a clean brush. Water-soluble oil pastels do exist as a separate product line, but standard oil pastels will not blend with water.
TL;DR — Oil Pastel vs Soft Pastel in 8 Bullets
- Different binders: oil pastel is wax + mineral oil; soft pastel is gum tragacanth chalk.
- Oil pastel sits around 55% pigment; artist-grade soft pastel hits 75–85%.
- Oil pastel never dries and blends with a stump or solvent; soft pastel is pure pigment held by paper tooth.
- Soft pastel essentially requires sanded or velour paper; oil pastel works on most papers with some tooth.
- Soft pastel needs fixative between layers; oil pastel does not.
- Oil pastel is the easier beginner and travel medium; soft pastel is the gallery-archival medium.
- Never mix the two on the same drawing — the wax blocks the soft pastel from keying.
- Pick grade first (pigment load and lightfastness), then pick medium.
Ready to pick your first real pastel set?
Paul Rubens makes both oil and soft pastel lines from artist-grade pigment. Start with the Classic 50 oil pastel set for a forgiving first medium, add the Macaron 48 for soft-palette work, and pair either with our A5 pastel paper so the paper never becomes the bottleneck.
Shop all Paul Rubens oil pastels →