Disposal guide

Can You Put Paint in a Dumpster?

Liquid paint: no, not in our trailer, not in any dumpster, not at any landfill gate in Colorado. Dried-out paint: yes. Here is the difference and the easy free option most people miss.

The Rule

No facility in the metro accepts liquid paint, and a can that leaks in a load can get an entire trailer rejected at the gate, which becomes everyone's expensive afternoon. Fully dried paint is ordinary solid waste: cans with hardened residue, lids off, are fine in the trailer.

The Free Option: PaintCare

Colorado runs a paint stewardship program called PaintCare, funded by a fee you already paid when you bought the paint. Participating paint and hardware stores across the metro take leftover house paint, stain, and varnish at no charge. If you have usable paint, this beats drying it out and is genuinely free.

How to Dry Out the Rest

For the half-inch of dead paint in the bottom of a can: pop the lid, stir in kitty litter or paint hardener, give it a day. Once it is solid, the can goes in the trailer with the lid off so the gate can see it is dry. A dozen cans takes one bag of litter and zero trips.

Common questions

Frequently Asked Questions

Can I put paint cans in a rental dumpster?
Only if the paint is fully dried. Hardened residue with lids off is fine. Liquid paint gets loads rejected at every metro facility.
Where can I take leftover paint in Denver for free?
PaintCare drop-off sites at participating paint and hardware stores across the metro take house paint, stain, and varnish at no charge. Household hazardous waste facilities like Rooney Road in Golden also accept it.
How do I dry out old paint?
Stir kitty litter or paint hardener into the can and leave the lid off for a day. Solid paint is ordinary trash.
What about spray paint and solvents?
Aerosols and solvents are hazardous waste, not dumpster material. They go to a household hazardous waste facility, not the trailer.
Got a pile with some of everything in it?