Latex Paint vs. Oil-Based Paint
The disposal method depends on the type of paint. Latex (water-based) paint becomes solid and inert when it dries and can be disposed of as regular solid waste once fully hardened. Oil-based paint (alkyd) is flammable and classified as household hazardous waste — it cannot go in the trash in any form.
Disposing of Latex Paint
- ▸Harden small quantities: Leave the can open to dry in a ventilated area. For faster results, stir in kitty litter, sawdust, or commercial paint hardener.
- ▸Once fully solid with no liquid paint remaining, the can can go in your regular trash — lid off so collectors can verify it's solid.
- ▸Do not harden large quantities indoors — fumes can be significant.
- ▸Colorado PaintCare also accepts latex paint for recycling (see below).
PaintCare Drop-Off Locations
PaintCare is a paint industry-funded program that operates drop-off sites at hardware stores, home improvement centers, and other retailers across Colorado. Drop-off is free for up to 5 gallons per visit.
Find the nearest location at paintcare.org/find-a-drop-off-site. Common Front Range hosts include Ace Hardware, True Value, and some Benjamin Moore dealers.
PaintCare accepts latex, oil-based, and specialty paints — all properly sealed in their original containers.
HHW Drop-Off Programs
All three major Front Range HHW programs (Jefferson County's Rooney Road, Denver's Cherry Creek Transfer Station, and Boulder County's HMMF) accept all types of paint at no charge to residents. See the hazardous waste section of this guide for locations and hours.
What Not to Do
- ▸Never pour paint down a drain, toilet, or storm sewer — it contaminates water supplies and is illegal.
- ▸Never dump paint in the trash while still liquid.
- ▸Do not burn paint cans — toxic fumes are released.
- ▸Don't leave cans outside to evaporate — runoff contaminates soil.