How to Safely Dispose of Leftover Paint in NSW

Almost every painting project generates leftover paint. Whether it is a half-full tin from a room refresh or multiple old cans from a renovation, knowing how to dispose of leftover paint in NSW correctly saves you from an illegal tip run and keeps hazardous material out of local waterways and landfill.

Why You Cannot Put Paint in General Waste

Liquid paint — particularly solvent-based or oil-based products — is classified as hazardous waste in NSW. Pouring it down drains contaminates waterways. Placing it in general waste risks damage to the landfill liner and potential ground contamination. Even water-based acrylic paints, when in liquid form, should not go into landfill. Sources: NSW Environment Protection Authority

Option 1: Dry It Out First (Water-Based Paint)

Water-based acrylic and latex paints can be safely disposed of in general waste once fully dried. The process:

1. Open the tin and leave it in a well-ventilated area out of reach of children and pets
2. Stir it occasionally to speed even drying
3. Once the paint is completely solid with no liquid remaining, place the tin in general waste with the lid off so the collector can verify it is dry

Option 2: PaintBack Scheme

PaintBack is a national industry-funded paint take-back programme that collects unwanted paint from households at no cost. Drop-off points accept all paint types — water-based, solvent-based, and aerosols. There are PaintBack collection points across the South Coast and Shoalhaven region, including sites in Nowra and Ulladulla. Find the nearest location at paintback.com.au. Sources: PaintBack Australia

[ Screenshot: PaintBack collection point in the Shoalhaven region ]

Option 3: Donate It

Good-condition paint that is still usable can be donated to community groups, theatre companies, local charities, or neighbour networks. The Berry and Shoalhaven community noticeboard and local Buy Nothing groups are good starting points. One person’s leftover tin is often exactly the colour someone else needs for a feature wall.

Storing Leftover Paint Properly in the Meantime

Before you reach the disposal stage, proper storage extends the usable life of leftover paint. Store in a location with stable temperature — paint stored in a shed that gets to 45 degrees in summer will deteriorate far faster than paint stored indoors. Ensure containers are properly sealed. Label the tin with the colour name, mixing formula, and the room it was used on. Water-based paint stored correctly can remain usable for two to five years.

What About Solvent-Based and Oil-Based Paint?

These must be taken to a PaintBack drop-off point or a licensed hazardous waste facility. Do not attempt to dry them out at home, as the solvents are a fire and health hazard during evaporation.

Final Thoughts

Safe paint disposal in NSW is straightforward — dry out water-based paint for general waste, or use the free PaintBack scheme for anything else. It takes five minutes of planning and keeps hazardous material where it belongs.

For advice on choosing the right paint volume for your job upfront, our residential painters team can help you avoid over-ordering in the first place.