How to dispose of paint?
Never pour paint down a drain or put liquid paint in household rubbish. Latex paint can usually be dried out solid and then discarded with normal waste; oil-based paint is household hazardous waste almost everywhere and must go to a collection site.
Latex and oil are handled completely differently
To dry small amounts of latex, leave the lid off in a ventilated place away from children and pets, or stir in cat litter or a commercial paint hardener until it is solid throughout. Many areas require the lid off so collectors can see it is cured.
Rules are set locally and they genuinely differ — some areas take latex at kerbside once solid, others do not. Check your county or municipal waste authority, and look for a PaintCare drop-off if your state has the programme.
Usable leftover paint is better donated than discarded. Schools, theatre groups and habitat-restore stores often take it.
How we sourced this
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Where a figure is product-specific — coverage, dry time, recoat time, temperature limits — we point you at the manufacturer's technical data sheet rather than printing a general number as though it were a specification. That distinction is the most common error in this trade, and it is the one that costs people a repaint.
Common mistakes
- Pouring paint down a drain or onto the ground. It is illegal in many places and it reaches the water supply.
- Putting liquid paint in the household bin. Most collectors reject it, and latex must be solid first.
- Treating oil-based paint as ordinary waste. It is household hazardous waste almost everywhere.
- Throwing out usable paint. Schools, theatre groups and reuse stores generally want it.
Related questions
Sources
- US Environmental Protection Agency. Household Hazardous Waste (accessed 2026-08-17).
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