
Paint and solvents are considered household hazardous waste and should not be thrown in the trash or rinsed down the drain. Improper disposal of these products can be toxic and dangerous to the environment. To dispose of leftover paint and solvents, you can take them to a local hazardous waste collection site, which may be run by a nonprofit organization like PaintCare, a government agency like CalRecycle, or a retailer. Some communities hold HHW collection events, and others have year-round facilities with regular hours. It's important to store and transport your paint and solvents properly, keeping them in their original containers with readable labels and upright, not on their sides.
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What You'll Learn

Oil-based paints
If the paint has been mixed with solvents, wipe it onto a paper towel and store it in your oil disposal container until you can get to a waste facility. Anything that has touched solvent and is disposable, including solvent in oil paint, should be stored in an airtight metal container before disposal. This includes oily rags and paper towels. It’s best to keep them in a safe space devoid of oxygen because solvents produce fumes and are highly flammable. Once you’re ready, take your airtight container to the local disposal centre, ensuring good ventilation in your vehicle.
If you have more than one colour for a room, keep them together. You can also use a label maker and mark each room on the shelf front. If you have cans that are half full or almost empty, transfer the remaining paint into quart cans or large jars. Use labels and a marker to list the brand, paint name, date of purchase, mixture number and the room you painted. Place a small dollop of paint on the top or side of the can so you can easily identify the colour.
If you can’t find another use for the leftover paint, consider donating it to someone who can. Antifreeze is non-hazardous, but many programs that collect household hazardous waste and/or used oil will also accept antifreeze. Some automotive shops also take used antifreeze for recycling.
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Water-based paints
If you have a small amount of water-based paint left in the can, you can remove the lid and let it dry out. Once dried, you can dispose of it with your household trash. For a quarter of a can of paint, you can add a drying agent like cat litter, cardboard scraps, or sawdust to soak up the paint and let it dry. Once dried, you can toss it with your household trash. For half a can of paint, layer paint and drying agents in a cardboard box until dried, then dispose of it with your household trash.
If you have full or mostly full paint cans, you can donate the paint to Habitat for Humanity. Find a location near you by calling 1-800-HABITAT (1-800-422-4828). You can also give leftover paint to neighbours, friends, or relatives, or offer it for free on social media.
In some states, such as California, there are Paint Stewardship Programs that ensure leftover paint is reused, recycled, or properly disposed of. PaintCare, a nonprofit stewardship organization created by paint manufacturers, runs these programs. You can use PaintCare's site locator to find a paint drop-off site near you. Some states, like Colorado, also have programs where you pay a fee when purchasing paint, and then you can take old paint to certain paint stores for proper disposal.
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Hazardous waste disposal sites
Hazardous waste, such as household paints and solvents, should not be thrown into the trash. Instead, they should be brought to a local collection site. Many communities have household hazardous waste programs or hold collection events to help prevent hazardous chemicals from getting into the environment and harming human health.
In the United States, PaintCare is a nonprofit stewardship organization created by paint manufacturers to ensure leftover paint is reused, recycled, or properly disposed of. PaintCare has a site locator tool that can help you find a paint drop-off site near you. Architectural paint products sold in containers of five gallons or less can be dropped off at many retail and other collection sites.
In Texas, the Texas Commission on Environmental Quality (TCEQ) maintains a list of ongoing programs and individually scheduled events for household hazardous waste disposal. If your can of paint is less than 1/4 full, you can place it in a well-ventilated area to dry. Once dry, the can may be thrown in the trash.
In Philadelphia, only certain kinds of hazardous waste are accepted at waste collection events. For other materials, you will need to find another method of disposal. Electronic waste, for example, should be taken to a sanitation convenience center, while ordnance or explosive materials should be handled by the local Police Department district office.
It is important to note that different areas may have different requirements and restrictions for hazardous waste disposal. Always check with your local government or waste management authority for specific guidelines and disposal options in your area.
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Reuse programs
PaintCare is a stewardship program that lists retailers and household hazardous waste facilities that accept leftover paint from the public. The PaintCare site locator includes a comprehensive listing of locations throughout the United States that accept leftover paint from the public. Reuse programs provide good-quality leftover paint at low or no cost back to the public. These programs are a sustainable and efficient way to manage leftover paint and provide a beneficial resource to the community.
If you have good paint that you can't use, consider offering it to family, friends, or neighbors, or call a local paint contractor. Some charities may also take paint, especially those that help the elderly with home renovations. It is critical that this be done in a manner that won't cause pollution to drinking water or waterways. One gallon of paint can contaminate many thousands of gallons of water, harm fish and aquatic plant life, and eventually poison the food chain.
Latex and acrylic paints can often be solidified and thrown away with household trash. This can be done by mixing the paint with clay-based cat litter at a ratio of two parts litter to one part paint. Be sure to do this in a well-ventilated place that's off-limits to kids and pets.
Old paint containers can be reused as plant pots. To spruce them up, clean the pot well and then roughen the surface with some sandpaper, so the paint will adhere better. Spray paints work much better than trying to brush paint on. A coat or two of primer and then two to three coats of paint, followed by a sealant, should do the trick. You can get creative with shapes, using string or tape to create patterns (remove the string or tape once the paint dries). The coating won't last forever outdoors, but you should get a few seasons of use before needing to touch them up.
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Local collection sites
In California, CalRecycle's Paint Product Recovery Program ensures that leftover paint is reused, recycled, or properly disposed of. PaintCare, a non-profit stewardship organization, runs the program. PaintCare's site locator tool can help you find a paint drop-off site near you. Architectural paint products in containers of five gallons or less can be dropped off at many retail and other collection sites throughout California.
In Texas, the TCEQ (Texas Commission on Environmental Quality) maintains a list of ongoing programs and individually scheduled events on its HHW Program Contacts page. Many communities in Texas either have HHW drop-off facilities or hold HHW collection events for their residents.
In Minnesota, each county administers a household hazardous waste program to help keep hazardous chemicals out of the environment and protect human health. Some counties have year-round collection facilities with regular hours, while others have seasonal facilities or events. Visit your county website and search for HHW for more information.
The City of Philadelphia also has waste collection events, but only certain kinds of hazardous waste are accepted. For other materials, you'll need to find another method of disposal.
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Frequently asked questions
In the US, PaintCare has partnered with retailers and household hazardous waste facilities to accept leftover paint from the public. You can use their site locator to find a drop-off site near you. Alternatively, you can pass on your unexpired paint to friends, relatives, or neighbours who can use them.
Each county in Minnesota administers a household hazardous waste program to prevent hazardous chemicals from getting into the environment and harming human health. You can visit your county's website and search for household hazardous waste (HHW) for more information. Many communities in Texas also have HHW drop-off facilities or hold HHW collection events for their residents.
If your can is less than 1/4 full, remove the lid and place the can in a well-ventilated area. The paint will dry in a few days. Once dry, the can may be thrown in your trash.
Oil-based paints should go to a household hazardous waste collection site.
If your paint smells rancid, it has likely gone bad. You can also check to see if the paint is separated. There will usually be a thin skin on top with a layer of liquid underneath. If the paint comes out rough and lumpy, you need to dispose of it.










































