A new diamond painting canvas often arrives rolled tight, with curls and a few creases. This guide is for crafters who want a flat, smooth surface before placing a single drill. You will learn seven ways to flatten the canvas and smooth wrinkles, what to avoid, and how to keep the canvas flat while you work. Most wrinkles disappear once drills are pressed on.
Our velvet canvases come with poured glue under a clear film, and every kit ships free worldwide.
Shop diamond painting kitsWrinkles rarely ruin a painting. In most cases they smooth out as drills go on, and the finished piece looks shiny and even. If you prefer a perfect start, the methods below are safe and simple.
Flatten a rolled canvas
If the canvas curls back into a roll, flatten it first. Only then will creases respond to any other method. Two quick options work well.
1. Lift and re-stick the protective film
Peel back the clear film on one corner and press it down again with your hand. Repeat around the edges, working in small sections. The canvas flattens quickly, and small wrinkles often smooth out too.
Never remove the whole film at once. You will not be able to put it back evenly, and the exposed glue will pick up dust.
2. Roll it the other way
Unroll the canvas on a flat surface, then roll it loosely the opposite way. Repeat a few times, switching between printed side out and blank side out. This relaxes the curl without any tools.
Remove wrinkles without heat
Start with these gentle methods. They carry the least risk to the glue.
3. Use heavy weights
Lay the canvas on a flat surface, tape the corners if you like, and set heavy flat objects on top, such as books or flat boxes. Leave it for a few days. Larger canvases can be left under a mattress.
4. Release trapped air bubbles
Some wrinkles are air bubbles under the film. Prick the bubble gently with a pin or the tip of a craft knife, then press the film flat. Cut very lightly so you do not damage the canvas.
5. Try a fabric wrinkle spray
Test first. Spray a little on a back corner, let it dry and check that the ink does not bleed. If it is fine, hold the can 6 to 8 inches from the back of the canvas and spray lightly. Dab off any excess, smooth by hand and let it air dry. Do not soak the canvas.
Remove wrinkles with gentle heat
Heat can melt the adhesive, so use it only if your kit instructions allow it and always stay on a low setting. Never apply heat after drills are on, because the resin can melt.
6. Low heat with a towel
Place the canvas face down, lay a thick towel over the back and press with an iron on its lowest setting. Check often. If you need moisture, sprinkle water on the towel, not on the canvas. Stop if the film looks soft or sticky.
7. Heat pad method
Sandwich a heat pad between two towels, lay the canvas design side up on top and cover it with a sheet of paper. Weigh it down with books. Turn the pad on low, check the temperature regularly and switch it off after 10 to 15 minutes.
| Method | Heat needed | Best for |
|---|---|---|
| Lift and re-stick film | No | Curled corners and edges |
| Roll the other way | No | Tightly rolled canvases |
| Heavy weights | No | Overall flattening, patient crafters |
| Release air bubbles | No | Bubbles under the film |
| Wrinkle spray | No | Stubborn creases after a spot test |
| Low heat with towel | Yes, low | Deep creases when kit allows |
| Heat pad | Yes, low | Large canvases |
Which method to try first
Work from gentlest to strongest, and stop as soon as the canvas is flat enough for you.
- Flatten the roll by lifting and re-sticking the film or rolling it the other way.
- Add weight and wait. Time fixes most creases with no risk at all.
- Release air bubbles if you can see them under the film.
- Use a spray only after a spot test on a back corner.
- Use low heat last, and only if your kit instructions allow it.
Remember that a few faint lines are normal and usually vanish under the drills. Do not spend days chasing a tiny crease that the finished painting will hide anyway.
Prevent new wrinkles
- Store the canvas flat when you are not painting.
- Cover unfinished areas with the clear film each time you stop.
- Roll with the drills facing outward if you must roll a finished painting.
- Keep the canvas away from heat, damp and direct sun.
- Tape the edges to your table so the canvas stays put.
A divided storage box keeps your tools and drills together between sessions.
After the canvas is flat
Now you can start placing drills. Work in small sections, press each drill straight down and keep the rest of the film in place. The anti-stick ruler helps keep rows straight, and a frame shows off the finished piece without extra bending.
When you finish, see how to seal and frame your diamond painting, and use our guide to common mistakes and fixes if any drills look off.
Frequently asked questions
Do wrinkles ruin a diamond painting?
No. Wrinkles usually smooth out as you press drills onto the glue, and the finished painting looks even and shiny. Flatten the canvas first only if you want a perfect start.
Can I iron a diamond painting canvas?
Only with care. Use the lowest setting, a thick towel between the iron and the canvas, and skip it if your kit says not to. Never iron after drills are placed, because the resin can melt.
How long should I leave the canvas under weights?
A few days usually works. For a very tight roll or a large canvas, leave it longer.
Is it safe to remove all the film at once?
No. Remove the film in small sections as you work so the glue stays clean and sticky.
How do I get air bubbles out?
Prick the bubble gently with a pin or craft knife tip to release the air, then press the film flat with your hand.
How should I store a finished painting?
Keep it flat if possible. If you need to roll it, roll it with the drills facing outward so they are not squashed together.
With a flat canvas and a few good tools, you are ready to start placing drills.
Buy 2 kits and save 10%, buy 3 and save 15%, applied at checkout.
Shop best sellers
