How to Store Unfinished Paint by Numbers Projects (So You Can Pick Up Right Where You Left Off)

Storing unfinished paint by numbers projects the right way can mean the difference between a painting you're proud to finish and one that dries out, warps, or gets covered in dust. If you're new to paint by numbers, this is one of the most practical tips you'll need — and most beginners only learn it the hard way.

Why Proper Storage Actually Matters

Life gets busy. You start a painting with enthusiasm, then set it aside for a few days — or a few weeks. The problem is that paint by numbers kits come with small pots of acrylic paint that dry out quickly once opened. The canvas can also pick up dust, get creased, or lose its shape if it's not stored carefully.

Getting into the habit of storing your project properly from the start saves you time, frustration, and wasted paint.

How to Store Your Paint Pots

Your paints are the most vulnerable part of an unfinished project. Acrylic paint dries fast when exposed to air, even in small containers. Here's how to keep them usable:

• Seal each pot tightly after every painting session. Press the lid down firmly and check it's fully closed.
• Store pots upright in a cool, dry place away from direct sunlight. Heat speeds up drying and can alter the colour.
• Add a tiny drop of water to pots that are starting to thicken — but only a drop. Too much water changes the consistency and how the paint adheres to the canvas.
• Use cling film or plastic wrap under the lid if the pot doesn't feel airtight. This creates an extra seal.
• Keep pots in a small container or zip-lock bag together so nothing gets lost between sessions.

How to Store the Canvas

Even if your paints are fine, a damaged or dusty canvas can ruin your progress. Follow these simple steps to keep the canvas in good condition:

• Keep it flat whenever possible. Rolling or folding a partially painted canvas can crack dried paint.
• Cover it with a sheet of clean paper or a cloth to protect it from dust. Avoid plastic directly on the painted surface — it can stick to wet or tacky areas.
• Store it in a portfolio sleeve or a large flat folder if you want extra protection. This is especially useful if you're storing it for longer than a week.
• Avoid humid or damp areas like garages or bathrooms. Moisture can warp the canvas and affect how the paint dries.

Set Yourself Up for Success Between Sessions

One overlooked tip for storing unfinished paint by numbers work is to take a quick photo of your canvas before you put it away. This gives you a reference point for which sections you've already completed and where you left off — handy if you return after a longer break.

It also helps to clean your brushes thoroughly before storing them. Dried acrylic on brush bristles is difficult to remove and will affect the quality of your brushstrokes next time. Rinse with water, reshape the bristles, and let them dry flat or brush-tip up.

How Long Can You Store a Paint by Numbers Project?

With the right storage habits, you can safely pause a project for several weeks without losing quality. The main risks over longer periods are paint drying out in the pots and the canvas collecting dust or moisture. If you know you'll be away for a while, it's worth doing a full check of every pot lid before storing and placing the whole kit in a sealed bag or box.

Some people successfully return to projects after months — it just takes a little more preparation upfront.

Ready to Start (or Restart) Your Next Project?

Whether you're pausing halfway through or picking a project back up after a long break, these habits make the experience much smoother. And if you're looking for a kit that's genuinely beginner-friendly — with clearly labelled paints, quality brushes, and a canvas that holds up well over time — our Beginner & How-To paint by numbers collection is a great place to start. Each kit is designed with first-timers in mind, so you spend less time troubleshooting and more time enjoying the process.

Storing your unfinished paint by numbers project properly isn't complicated. A few small habits go a long way toward keeping your paints fresh, your canvas clean, and your motivation intact.