Safety Gloves

Heat Resistant Gloves: Your Ultimate Guide to EN 407 Rated Protection for Welding & Metalwork

By Firstworkwear
5 min read

Working with molten metal, intense flames, or extremely hot surfaces demands the highest level of hand protection. This is where heat-resistant gloves, specifically those rated under the EN 407 standard, become indispensable. This comprehensive guide will delve into the world of heat-resistant gloves, explaining their crucial features, applications in welding and metalwork, and how to choose the right pair to ensure your safety and comfort.

Understanding EN 407: The Standard for Heat Resistance

The European standard EN 407 defines the performance levels of heat-resistant gloves against various thermal hazards. It’s crucial to understand this standard when selecting gloves for your specific application. The EN 407 rating system uses a six-digit code, each digit representing the glove’s performance against a different type of heat exposure:

EN 407 Rating System Explained:

  • Digit 1: Contact Heat (seconds): Resistance to brief contact with a hot surface (e.g., touching a hot workpiece).
  • Digit 2: Convective Heat (seconds): Resistance to heat transferred by air movement (e.g., working near an open flame).
  • Digit 3: Radiant Heat (kW/m²): Resistance to heat transferred by radiation (e.g., heat from a welding arc).
  • Digit 4: Small Flames (seconds): Resistance to brief exposure to small flames.
  • Digit 5: Large Flames (seconds): Resistance to exposure to larger flames.
  • Digit 6: Heat and molten metal splash (seconds): Resistance to molten metal splashes and high-temperature spills.

For example, a glove with a rating of 4123X3 indicates a high level of protection against contact heat, convective heat, and radiant heat, moderate protection against small flames, and a low level of protection against large flames and molten metal splash. The ‘X’ signifies that the glove hasn’t been tested for that specific hazard.

Types of Heat Resistant Gloves and Their Applications

Several types of heat-resistant gloves cater to different needs within welding and metalwork. The choice depends on the specific hazards encountered and the level of dexterity required.

1. Leather Heat Resistant Gloves:

Leather gloves, particularly those made from high-quality, heat-treated leather, offer excellent protection against contact heat, convective heat, and sparks. They are durable, relatively inexpensive, and provide good dexterity, making them suitable for general metalwork, handling hot tools, and light welding tasks. However, their resistance to radiant heat and molten metal splashes is limited.

2. Kevlar Heat Resistant Gloves:

Kevlar is a high-strength, heat-resistant synthetic fiber. Kevlar gloves provide excellent cut resistance in addition to good heat protection, making them ideal for tasks involving sharp objects and high temperatures. They are often used in conjunction with other materials for enhanced protection. Kevlar gloves offer better protection against radiant heat than leather gloves but may be less dexterous.

3. Aluminized Heat Resistant Gloves:

Aluminized gloves are coated with a thin layer of aluminum, which reflects radiant heat exceptionally well. This makes them ideal for welding applications where exposure to intense radiant heat from the welding arc is a significant risk. They also offer good protection against convective heat and sparks. However, they may be less dexterous than leather or Kevlar gloves.

4. Nomex Heat Resistant Gloves:

Nomex is a meta-aramid fiber known for its exceptional heat and flame resistance. Nomex gloves provide excellent protection against a wide range of thermal hazards, including contact heat, convective heat, radiant heat, and flames. They are often used in high-risk environments where extreme heat and flame exposure are common. Nomex gloves are typically more expensive than leather or Kevlar gloves.

5. Silicone Coated Heat Resistant Gloves:

Silicone coated gloves often feature a base material like cotton or aramid fibers, enhanced with a silicone coating for added heat and abrasion resistance. The silicone layer provides a degree of waterproofing and improves grip. They’re a versatile option for handling hot materials and providing a barrier against splashes.

Choosing the Right Heat Resistant Gloves: Key Considerations

Selecting the appropriate heat-resistant gloves involves careful consideration of several factors:

1. EN 407 Rating:

Always check the EN 407 rating to ensure the gloves meet the specific requirements of your work environment. Higher numbers generally indicate better protection.

2. Material:

Consider the type of heat exposure you’ll face (contact, convective, radiant, flames, molten metal) and choose a material that offers adequate protection against these hazards. Leather is suitable for general metalwork, while aluminized gloves are better for welding.

3. Dexterity:

While protection is paramount, dexterity is also crucial. Some materials, like aluminized gloves, may offer less dexterity than leather or Kevlar gloves. Choose gloves that allow for sufficient hand movement to perform your tasks efficiently and safely.

4. Comfort and Fit:

Ill-fitting gloves can be uncomfortable and reduce dexterity. Ensure the gloves fit snugly but not too tightly, allowing for comfortable movement and preventing slippage.

5. Durability:

Heat-resistant gloves should be durable enough to withstand repeated use and exposure to harsh conditions. Consider the glove’s construction and material to ensure longevity.

6. Maintenance:

Regularly inspect your gloves for any signs of wear and tear, such as tears, holes, or stiffening. Replace damaged gloves immediately. Follow the manufacturer’s instructions for cleaning and maintenance.

Real-World Applications of Heat Resistant Gloves

Heat-resistant gloves find widespread use in various industries:

  • Welding: Protecting hands from the intense heat and sparks generated during welding processes.
  • Metalworking: Handling hot metal, forging, and other high-temperature processes.
  • Foundries: Handling molten metal and working in high-temperature environments.
  • Glassblowing: Protecting hands from the intense heat of molten glass.
  • Firefighting: Providing protection against flames and heat in fire-related emergencies.
  • Industrial maintenance: Handling hot equipment and machinery.

Investing in high-quality, EN 407 rated heat-resistant gloves is a crucial step in ensuring hand safety in welding, metalwork, and other high-temperature applications. By understanding the EN 407 rating system, the various glove types, and the key factors to consider when choosing gloves, you can select the right protection for your specific needs. Remember, prioritizing hand safety is not just about compliance—it’s about protecting your health and well-being.