After finishing a painting project, chances are you’ll have some leftover paint. Keeping it stored properly ensures you’ll have the right colour ready for touch-ups in the months or years ahead. Here are answers to the most common questions about storing paint the right way.
1. Why is it important to store leftover paint?
Properly stored paint can last for years and save you from buying new cans for small touch-ups. It also ensures you’ll have the exact colour match for your walls, trim, or exterior.
2. How long does leftover paint last?
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Latex (water-based) paint: Up to 10 years if sealed tightly and stored correctly.
- Oil-based paint: Up to 15 years with proper storage.
3. What’s the best container for storing paint?
- Keep paint in its original can if possible.
- Make sure the rim is clean before sealing to prevent air leaks.
- For small amounts, transfer to an airtight glass or plastic jar with a tight lid.
4. How should I seal the paint can?
- Wipe the rim clean of excess paint.
- Place a piece of plastic wrap over the opening before hammering the lid back on.
- Tap the lid down gently with a rubber mallet (not a hammer) to avoid denting.
5. Where should I store leftover paint?
- In a cool, dry place (like a basement or closet).
- Avoid areas with extreme heat or cold, like garages or sheds, which can ruin the paint.
6. How do I label stored paint for future use?
- Mark the room name and date on the lid.
- Note the brand, colour name, and finish for easy reordering.
- You can also tape a small dried paint sample to the lid as a quick reference.
👉 Browse Randall’s paint collectionfor matching colours and finishes.
7. What are signs that old paint has gone bad?
- Strong sour smell when opened
- Lumpy, thick, or separated consistency that won’t mix
- Visible mold inside the can
If this happens, it’s time to dispose of the paint properly.
8. Can I reuse old paint for full projects, or just touch-ups?
Stored paint is best for touch-ups. For larger projects, fresh paint ensures even colour, coverage, and durability.
9. How do I dispose of paint safely if I can’t use it?
Never pour paint down drains or into the trash. Check your local waste facility for paint recycling programs. Our services teamcan guide you on safe disposal.
10. Should I hire a professional for touch-ups instead?
If you’re short on time or want seamless results, a professional painter can handle small repairs and touch-ups with ease. Use our Painter Order Formto connect with trusted pros.
11. Can Randall’s help with matching touch-up paint?
Yes! We offer:
- Colour matching services
- Expert advice on finishes and durability
- Quality tools for touch-ups
- Personalized support via our Contact Us
Leftover paint is a valuable resource if stored properly. By sealing it tightly, keeping it in the right place, and labeling it clearly, you’ll always be ready for quick and easy touch-ups.
Randall’s is here to help—from premium paints and supplies to expert services and professional painter connections.