Handling Flammable Materials Toolbox Talk

Flammable materials can ignite quickly from sparks, hot work, static, open flames, heaters, smoking, or damaged electrical equipment. Gasoline, solvents, adhesives, paints, thinners, aerosols, and fuel gases can create vapors that travel and ignite away from the work area.

This talk focuses on safely storing, moving, and using flammable materials on the jobsite. The goal is to control ignition sources, prevent spills and vapor buildup, and make sure the crew knows what to do before a fire starts.

Why This Matters

• Flammable vapors can ignite before anyone sees a liquid burning.
• A small spill can spread fast and create a slip hazard, fire hazard, and exposure risk.
• Improper storage can turn a minor incident into a larger fire.
• Containers left open can release vapors into work areas, pits, rooms, or enclosed spaces.
• Using flammable products near grinding, welding, heaters, or temporary power can put the whole crew at risk.

Common Hazards

• Storing fuel, solvents, adhesives, or aerosols near heat, sparks, or hot work.
• Using unapproved containers or containers without clear labels.
• Leaving lids, caps, or valves open when materials are not in use.
• Working in rooms, trenches, or enclosed areas without enough ventilation.
• Smoking, vaping, or using open flames near flammable materials.
• Dragging containers, dropping cans, or damaging fuel lines during material handling.
• Using flammable liquids on a lower level while sparks or hot slag are falling from work above.

Safety Checklist

Before Work Begins

• Read the label and safety data sheet before using any flammable product.
• Confirm the material is stored in an approved, labeled container.
• Move flammable materials away from hot work, heaters, electrical panels, and ignition sources.
• Check that fire extinguishers are nearby, accessible, and the right type for the hazard.
• Make sure ventilation is adequate before opening containers or applying products.
• Plan spill control before handling fuel, solvents, or other liquid materials.

During Work

• Keep containers closed when not actively pouring or applying material.
• Use only the amount needed for the task and return extra material to proper storage.
• Keep flammable vapors away from sparks, flames, hot surfaces, and electrical tools.
• Clean up spills right away using the proper absorbent and disposal method.
• Do not mix products unless the manufacturer’s instructions allow it.
• Keep walkways, exits, stairs, and access routes clear of fuel cans, solvent buckets, and waste containers.

Crew Talking Points

• What flammable materials are being used on this job today?
• Where are they stored, and is that area protected from ignition sources?
• What hot work, heaters, temporary power, or equipment could create sparks or heat nearby?
• Where are the fire extinguishers and spill supplies located?
• Does anyone have questions or concerns about the products, vapors, storage, or cleanup plan?

Stop Work If

• Flammable vapors are strong, ventilation is poor, or workers feel dizzy or irritated.
• Containers are leaking, damaged, unlabeled, or not approved for the material.
• Ignition sources cannot be controlled or moved away from the work area.
• Fire extinguishers, spill supplies, or required PPE are missing.
• A spill reaches drains, soil, equipment, electrical cords, or public access areas.

Final Reminder

Flammable materials need control from the moment they arrive on site. Keep containers closed, control ignition sources, ventilate the area, and clean up spills before they become a fire.