Toolbox Talk – Propane Torch Safety

Today’s Toolbox Talk Topic is Propane Torch Safety. Propane torch Flames are commonly used for soldering copper water pipes and can also be applied to low-temperature welding or brazing dissimilar metals. They can reach temperatures exceeding 1093°C, so proper precautions are essential.

Propane Torch Safety

Before You Start

• Understand the material: Know the thickness, reinforcement, and under-face of the material you are torching.
• Surface material: Be aware of the material you’re torching onto, such as concrete, gypsum, or asphaltic core boards.
• Weather conditions: Consider the temperature, wind, and humidity as they affect the torching process. Cold, humid conditions slow down the process, while warm, dry conditions speed it up.

In Case of Emergency

• When working on a roof, ensure fire extinguishers and a complete first aid kit is easily accessible.
• Keep at least one Class ABC fire extinguisher within 6 meters of any worker using a torch.
• Do not torch within 10 feet of combustible materials.

What to Wear

• Wear proper PPE, including a hard hat, long-sleeve shirt, safety boots, eye protection, and gloves.
• Clothing should be flame-resistant (cotton or wool). Avoid synthetic materials.
• Keep one water-based fire extinguisher no more than 10 feet away from the active torch.

Precautions

• Check seals: Inspect cylinder and appliance seals before use. Discard cylinders with damaged seals or rust/dirt in valve areas.
• Torch attachment: Make sure the torch is off before attaching the fuel cylinder. Hand-tighten only to avoid damaging seals.
• Check for leaks: Use soapy water to check connections for leaks. Look for bubbles or listen for hissing.
• Upright use: Keep torches upright to prevent flare-ups. If sputtering occurs, turn off the torch and vent the area.
• After use: Allow the torch to cool before detaching the cylinder. Store capped cylinders away from heat and direct sunlight.
• Safe storage: Never drop, throw, or puncture fuel cylinders. Store them in cool, dry areas, away from living spaces and children. Avoid storing above 120°F (49°C).

Proper preparation, the right PPE, and emergency readiness are critical when using propane torches to ensure safety on the job.

Download the full Toolbox Talk document on Propane Torch Safety below:

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