Once that last little section is filled in, learning how to varnish paint by numbers is the perfect finishing touch. A coat of varnish protects your work and gives it a beautiful, even glow, and framing turns your canvas into a piece you will be proud to hang.
Here is a calm, beginner-friendly walkthrough.
Why varnish your canvas
Varnish does two lovely things. It seals the acrylic paint so it resists dust, fingerprints, and small scuffs, and it evens out the finish so glossy and matte spots blend into one smooth look. Your custom paint by numbers kit gives you the painting itself, and a simple varnish step makes the result last for years.
Make sure the paint is fully dry
Patience pays off here. Acrylic can feel dry to the touch within an hour, but it is best to let the whole canvas rest for at least 24 to 72 hours before varnishing. This makes sure every layer, including the thicker areas, is truly cured.
Choose your varnish
Acrylic varnish comes in a few finishes, and the right one is simply a matter of taste.
- Gloss gives a bright, vivid shine that makes colors pop.
- Satin offers a soft, gentle sheen that suits most pieces.
- Matte keeps things flat and subtle, with no glare.
Both brush-on and spray varnishes work well. Brush-on is budget friendly and precise, while spray is fast and leaves no brush marks.
How to apply varnish, step by step
- Lay the canvas flat on a clean, covered surface in a well ventilated room.
- Gently wipe away any dust with a soft, dry cloth.
- If using brush-on varnish, load a clean flat brush and work in one direction with thin, even strokes.
- If using spray, hold the can about 12 inches (30cm) away and apply light, sweeping passes.
- Let the first coat dry fully, then add a second thin coat if you want extra protection.
Thin coats always beat one thick coat. They dry clearer and avoid streaks or pooling.
Let the varnish cure
Give the finished canvas a full day to dry before handling or framing it. A properly cured surface feels smooth and looks even across the whole painting.
Framing your finished painting
A frame is the moment your project becomes wall art. You have a few easy options depending on the look you want and whether your canvas is on a flat sheet or stretched.
- A classic frame with a backing board suits flat canvases beautifully.
- A clean, modern look pairs well with a slim metal frame. Our aluminum photo frame gives a crisp, contemporary edge.
- Floating or borderless styles keep all the focus on your artwork.
Measure your canvas carefully before choosing a frame. Our paintings come in sizes from 12"x16" (30x40cm) up to 20"x28" (50x70cm), so match the frame to your canvas size for a snug, polished fit.
Hang it where you will enjoy it
Pick a spot with good light but out of harsh, direct sun, which can fade any artwork over time. A hallway, living room, or bedside wall lets you enjoy your accomplishment every day.
Frequently asked questions
Do I have to varnish my canvas?
No, varnishing is optional. Your painting will look great either way. Varnish simply adds protection and a more uniform finish, which is nice for pieces you plan to display for a long time.
Can I frame my canvas without varnishing first?
Yes. Just make sure the paint is completely dry before framing so nothing smudges or sticks. Varnishing first is a little extra insurance, but it is your choice.
What if my canvas is wrinkled or curled?
Gently flatten it under a few heavy books for a day or two before framing. For a flat sheet canvas, mounting it on a backing board inside the frame keeps it smooth.
How long does varnish take to dry?
Most acrylic varnishes are dry to the touch within an hour or two, but allow a full day to cure before framing or hanging for the best, most durable finish.
Give your work the finish it deserves
You put care into every brushstroke, so take a little extra time to protect and display it. Finish your custom paint by numbers kit with a smooth coat of varnish, choose a frame you love, and enjoy the quiet pride of seeing your creation on the wall.