The Science of Experience



Leftover Materials? Disposal Procedures for Spray Polyurethane

Posted by Becky Eades

Aug 12, 2015 11:00:00 AM

Spray foam safety is vital to understand before starting your construction projects. While spray foam is certainly a sustainable choice, it is important that you dispose of it properly to reduce the potential for environmental damage and hazards to human health.


You're responsible for adhering to safe disposal procedures!

Spray foam is made from a chemical called polyurethane, which has specific disposal requirements. The person involved with disposing the foam has an obligation to make sure that it is disposed of properly and in accordance with all applicable federal, state, and local regulations.

It is never a wise idea to abandon a barrel of SPF after a job is finished. Even if there is only a small amount remaining, the drum must be disposed of in a manner than complies with regulations. For guidance on disposing of your drums, contact the American Chemistry Council, and speak with someone who represents the Center for the Polyurethane Industry.

If you only have small amounts of unused chemicals, note that you can combine the A side chemicals and B side chemicals to cure the foam. In its cured form, the foam is not harmful and can be disposed of as regular, non-hazardous waste.

Are you thinking of choosing SPF as insulation in your next project? It’s a sustainable choice that withstands moisture and mold, and increases the energy efficiency of your structure. At NCFI Polyurethanes, we take the utmost care to practice spray foam safety procedures. Contact us to discuss your home insulation needs today.

Topics: Safety, Training & Support, Spray Polyurethane