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Fire Officials Issue Warning on Fire Hazard of DYI Projects

Spontaneous Combustion of Oily Rags Cause of Several Recent Fires

State Fire Marshal Stephen D. Coan, Watertown Fire Chief Mario Orangio, president of the Fire Chiefs’ Association of Massachusetts, Ayer Fire Chief Robert J. Pedrazzi, Belmont Fire Chief David Frizzell, Bourne Fire Chief Martin Greene, Royalston Fire Chief Keith R. Newton, and Waltham Fire Chief Paul J. Ciccone today issued a warning for people engaged in do-it-yourself projects to properly dispose of oily rags used in staining and painting projects.

Spontaneous

combustion

Do-it-yourself projects often involve using products with high VOC’s (volatile organize compounds), which makes them flammable. Examples of these products are oil- based paints and stains, varnishes and polyurethane, paint thinners, etc. Even cooking oil is a flammable liquid.

“One minute you’re making your home better, and a few hours later, you and your family are homeless. Taking the extra time to safely handle the fire hazard that oily rags pose can lead to truly enjoying your hard work,” said State Fire Marshal Stephen D. Coan.

Oily rags have a long history of being a source of fire, because people are not aware that they have the ability to spontaneously combust and catch on fire. Oily rags that get folded or balled up and tossed on the floor have the danger of going through a process that starts with oxidation. As the oil is drying on the rag, it produces heat, and air gets trapped in the folds or balled up portions. Heat and oxygen are combined in addition to the rag, which is usually made of combustible cloth that can become a source of fuel. Heat, oxygen and fuel are all that is needed to create a fire, which is why oily rags that are not disposed of properly can create a fire that people are not prepared for.

How to Dispose of Oily Rags

Oil or gas-soaked rags should be safely disposed of after use using two steps:

Hang them outside to dry in a safe area or spread them out flat, making sure they are weighted down outdoors. They should not be in a pile. Once they are dry, they should be disposed of properly.

For somebody who uses oily rags on a daily or weekly basis, the oily rags should be placed in a listed oily waste container and emptied by a private contractor.

For a less frequent user, the now dry oily rags should be stored in a small, airtight, non-combustible (such as metal) container with a tight-fitting lid. An old paint can is a good example. The rags should be completely covered with a solution of water and an oil breakdown detergent. Do not add any other combustible material (stuff that can catch fire). The user should then dispose of the rags during a city-sponsored hazardous waste collection day.

For more information, Disposal of Oily Rags, under Fire Safety Topics, on the DFS website – http://www.mass.gov/dfs.

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