For a first canvas, use acrylic. It goes on almost any primed canvas you can buy, dries in minutes, and washes out of everything with water. Oil is better for blending and worse for beginners. Watercolor needs a canvas made specifically for it, and will not behave on an ordinary one.
That is the short answer. The longer one is worth reading, because the thing that actually decides what you can use is printed on the back of the canvas and almost nobody looks at it.
The priming decides more than the paint does
You will read that acrylic suits smooth canvas and oil needs a rough one. That is not how it works. Both paints handle any weave. What matters is the ground, the primer coat between the fabric and your paint.
- Acrylic-primed, often labeled universally primed. This is nearly everything sold in art shops and craft stores. It takes acrylic, and it takes oil. If the label says nothing at all, this is what you have.
- Oil-primed. Less common, more expensive, sold for oil painters. Oil only. Acrylic will not bond to it and will lift off in sheets a year later.
- Unprimed raw canvas. Prime it yourself with gesso before anything else. Oil applied straight to raw fabric rots the fibers over time.
One rule follows from all this and is worth remembering permanently: oil over acrylic is fine, acrylic over oil is not. If you combine them, the acrylic goes underneath.
Acrylic
Water-based, and the default choice for good reasons.
It dries touch-dry in minutes. That makes layering easy, because you can paint over something without disturbing it, and makes blending hard, because a gradient has to be worked fast or with a retarder medium sold for the purpose. Cleanup is water. There are no fumes and no solvents, which matters if you paint at the kitchen table.
Two things to know before you start. Acrylic dries slightly darker than it looks wet, which catches everyone out on their first attempt at matching a color. And it dries permanently, so a mistake is fixed by painting over it rather than lifting it off.
A starter palette of six covers almost everything: titanium white, a warm blue such as ultramarine, a cool blue such as phthalo, cadmium red or a red equivalent, a yellow, and burnt umber. Skip black at first. Mixing your darks from blue and brown gives a livelier result than a tube of black, which tends to deaden everything it touches.
Oil
Oil stays workable for days. That is the whole appeal, and it is a genuine one: soft transitions, edges you can lose and find again, and the ability to come back tomorrow and adjust something rather than paint over it.
The costs are real too. Drying takes days to weeks depending on thickness and color. Cleaning brushes needs mineral spirits or a dedicated solvent, with the ventilation and storage that implies. And there is a structural rule to follow: fat over lean, meaning each layer should contain more oil than the one beneath it, or the surface cracks as it cures.
Water-mixable oils are a genuine middle path. They handle much like traditional oil and clean up with soap and water, which removes the solvent problem entirely. They are the version worth trying if the fumes are what has kept you away.
Watercolor
Watercolor and canvas are an awkward pair, and most guides are vague about why.
Ordinary primed canvas is designed to hold thick paint, not thin washes. Watercolor beads on it, pools in the weave and lifts off when you work back into it. What you need is watercolor canvas, sold specifically as such, with an absorbent ground.
Even then, one thing stays true: watercolor never becomes permanent. It re-dissolves in water indefinitely, so a finished piece on canvas has to be sealed with a suitable varnish or it is one spilled drink from ruin. If you love watercolor, paper is genuinely the better surface, and there is no shame in that.
Which to actually buy first
Acrylic, on a universally primed canvas, in a small size. The reasoning is unromantic: it is the only one of the three where a bad first painting costs you an evening rather than a week, and where you can abandon something halfway and clean up in five minutes.
Buy student grade to begin with. The difference between student and artist grade is pigment concentration, which matters when you are mixing subtle colors and not at all when you are learning where things go. Move up when you find yourself frustrated by the paint rather than by yourself.
Start at 8 x 10 or thereabouts. Large canvases early tend to produce timid paintings, because you are frightened of ruining the surface.
If choosing colors is the part you would rather skip
There is a version of canvas painting where the color decisions are already made. A numbered canvas comes with the palette worked out by the artist who painted the original, so what is left is the part most people find restful.
Being accurate about what we make: 39 designs, all representational, licensed from working artists. Americana, wildlife, cabins, florals and landscapes. There is no abstract line and no reproduction of famous paintings, whatever you may read elsewhere. Each kit is pre-primed cotton canvas shipped rolled in a tube rather than folded, with vacuum-sealed acrylic paints, brushes in a range of sizes, and an 11 x 17 reference print so you are not squinting at a thumbnail. The framed sizes come with a small easel.
The full range is here, and if it is your first canvas of any kind the beginner's guide is the place to start.
Common questions
Can I use house paint on canvas?
You can, and artists do, but understand the trade. Interior emulsion is formulated for coverage and cost, not permanence. It chalks, yellows and cracks over years. It is fine for something decorative and a poor idea for anything you want to keep.
Do I need gesso if my canvas is already primed?
No. A pre-primed canvas is ready to paint. An extra coat or two of gesso, sanded between, gives a smoother surface if you want one, which some people prefer for fine detail. It is a preference, not a requirement.
Why does my acrylic look patchy and streaky?
Usually too little paint stretched too far, or a color that is naturally transparent, which many yellows and reds are. Let the first coat dry completely and add a second rather than working the wet layer harder.
Can I mix acrylic and oil in one painting?
Only in that order. Acrylic underpainting with oil on top is a long-established method. The reverse fails.
How do I keep acrylic workable for longer?
A retarder medium, a spray of water on the palette, or a stay-wet palette, which is a shallow tray with a damp sponge under greaseproof paper. The last of these costs almost nothing and works better than the other two.
