Nearly every mistake on a numbered canvas is fixable, and the reason is simple: acrylic is opaque and it dries in minutes. You can paint over almost anything. The mistakes that are genuinely hard to undo are the ones people make while trying to fix something else. Starting with a forgiving paint removes most of that risk before it begins.
Here is what to do, problem by problem, and what to leave alone.
You filled a section with the wrong color
The most common mistake by a wide margin, and the easiest to put right.
Let it dry completely. Not touch-dry, properly dry, which takes twenty minutes or so on a thin coat. Then paint the correct color straight over the top. If the wrong color was darker than the right one, expect to need two coats, and let the first dry before adding the second.
Do not try to wipe it off while it is wet. This is the instinct and it is the wrong move. A rag or a wet brush spreads the paint into the sections around it, and now you have three problems instead of one. Leave it, let it dry, cover it.
You painted over the lines
Same answer, in the other direction. Let the stray paint dry, then paint the neighboring section's correct color up to the printed line, over the top of the mistake. The line itself is printed, so you can always find where the edge should be.
If the overrun is into an area that is meant to stay very light, do it in two thin coats rather than one thick one. A thick coat leaves a visible ridge along the edge, which shows more than the wrong color would have.
Two wet sections bled into each other
This happens when you paint a section next to one that has not dried yet. The two colors creep across the boundary and you get a soft, muddy edge where there should be a clean one.
The fix is to let the whole area dry hard, then repaint both sections, starting with the darker of the two. The prevention is easier: skip any section that touches something you have just painted, and come back to it on your next pass.
Colors are mixing on the brush
If a new color is coming out wrong, the brush still has the old one in it, usually at the base of the bristles rather than the tip. Rinse in clean water, squeeze out through a rag, and check the rag rather than the brush.
If the brush has genuinely clogged with paint that has dried at the base, wash it with a drop of dish soap and lukewarm water, working from the ferrule towards the tip. For a brush that has hardened, isopropyl alcohol is the thing that works.
Do not use nail polish remover. Acetone softens dried acrylic and it also attacks synthetic bristles and the handle finish. It appears constantly in brush-cleaning advice and it is the wrong tool. The full routine is in our guide to cleaning fine tip brushes.
The paint is too thick to spread
Our paints are vacuum-sealed so they arrive moist, and most people never need to thin them. If a pot has thickened in the box or after a few weeks open, add water one drop at a time and stir it in with the brush handle rather than the bristles.
You are aiming for paint that spreads without dragging and still hides what is underneath. The test is what happens once it dries: if you can see the printed number through the paint after it has dried, you have added too much water. Thin paint is the reason light colors fail to cover, which is the single most common complaint we see about light sections anywhere in this category.
Thinning acrylic is a repair, not a step. Anyone telling you it is a must has it backwards.
A light color will not cover the printed number
Very common with the pale creams, yellows and whites, and it is not a fault in the paint. Light pigments are less opaque than dark ones, and they are covering printed ink.
Two thin coats, fully dry between them, will cover it. One thick coat will not, and it leaves a ridge. If you are still seeing a shadow of the number after two coats, the paint has been thinned too far.
A pot has dried out
If the paint has skinned over or thickened, add a few drops of water, put the lid back on and leave it for ten minutes, then stir. It usually comes back.
If it has set solid all the way through, it is gone, and nothing brings it back. Do not add alcohol. Alcohol softens dried acrylic into a sticky mess rather than restoring paint, and you cannot paint with the result. Water only.
Every design in our range has a matching replacement paint set, so a solid pot does not end the project.
A color ran out before the canvas was finished
Usually one heavily used shade — a sky blue or a background green. Two things help. First, scrape the sides and lid of the pot with the brush handle, because there is more in there than it looks. Second, work that color across the whole canvas in one pass so you find out early whether you are going to be short.
If it has genuinely run out, the replacement set above covers it. Mixing a substitute from other pots is possible but the match will show, particularly across a large area.
You cannot read a number
This is the honest weak point of every printed canvas, ours included, and it comes up in our reviews more than anything else. The fixes are practical rather than clever:
- A lamp pulled in close, angled so your hand does not shadow the section.
- Reading glasses, and a magnifier for the finest areas. Plenty of our customers keep one on the table and it is not a sign of anything.
- The 11x17 printout that comes in the box. Check the section on paper rather than leaning over the canvas.
- If the number is genuinely illegible, take the color from the printout and from the sections around it. A section is nearly always the same color as at least one of its neighbors.
A section has no number printed in it at all
It happens occasionally on any printed canvas. Match it against the full-color reference photo, and use the color of the sections around it. It is almost always an area carrying the same color as its neighbor, which is why the number was dropped.
The canvas has a crease
Our canvases ship rolled in a tube rather than folded, specifically so this does not happen, and it is the thing customers mention most often when comparing us to kits that arrive creased.
If you do have a crease in a rolled canvas, lay it flat under a stack of books for a day or two, or tape it taut to a board along the unprinted margin. If you want to use heat, iron from the reverse side only, on low, with a cloth in between, and never on the printed face.
Do not take a blade to it. Cutting or scoring a crease from the back is advice that circulates and it destroys the canvas.
The framed sizes sidestep this entirely, since the canvas arrives pre-stretched on a wooden frame. A taut canvas is also easier to paint on, because it does not dip under the brush.
Paint spilled on the canvas
Blot straight down with a paper towel — press, do not wipe, because wiping spreads it. Then let whatever is left dry and paint the affected sections over the top in their correct colors.
Prevention is a wider surface than you think you need, and putting the open pot on the side away from your painting hand.
You have lost interest halfway through
Not a mistake, and worth saying plainly: a 16x20 takes most people 10 to 20 hours. Nothing spoils if the canvas sits for a month. Put the lids on the pots, leave it somewhere you can see it, and come back when you want to.
If it has stalled because the remaining work is all tiny sections, do the next-largest thing rather than the next-numbered thing. Progress is what makes people carry on.
How to avoid most of it
- One number at a time, across the whole canvas. Fewer brush washes, and near-identical shades stay separated because you are never judging two of them side by side.
- Skip anything adjacent to wet paint and pick it up on the next pass.
- Top to bottom, so your hand and sleeve rest on unpainted canvas. Right-handed painters are best starting at the top left and working right; left-handed painters the other way round.
- Largest areas first. The big background shapes go quickly, and finishing them makes the canvas look half done, which is a genuine help.
- Cover the table and keep the water jar on the far side from your painting hand.
- Lids on whenever you are not actively using a pot.
New to this? Our beginners guide covers the setup properly, and every design in the range says on its page what is harder about it.
Common questions
Can I use white paint to cover a mistake first?
You can, and usually you do not need to. Painting the correct color directly over a dry mistake works in one or two coats. White underneath adds a third layer and more thickness at the edge.
Will the fix be visible in the finished painting?
Only if you look for it. A repainted section sits very slightly higher than its neighbors. From arm's length, which is how anyone will ever see it, it is invisible.
Can I remove acrylic from the canvas completely?
Not reliably, and it is not worth attempting. Solvents that shift cured acrylic will also take the printed numbers and lines with them, and then you have no guide left. Paint over it.
How long should I leave paint to dry before painting next to it?
Twenty minutes for a normal coat, longer for a thick one or in a humid room. If it still looks glossy, it is still wet.
What if I have already made a real mess of it?
Let all of it dry hard, then work back over the affected area section by section in the correct colors, darkest first. It takes an evening and it recovers almost anything. This is a canvas for a good evening rather than a museum, and it does not need to be perfect to be worth hanging.
