Heat Protection in Welding: Beyond Temperature Ratings
Welding environments expose hands to more than just high temperatures. Heat behaves differently, varying in form, intensity, and duration, often accompanied by sparks, molten metal, and mechanical stress. In demanding industrial environments, insufficient heat protection can affect both safety and long-term working comfort.
Effective hand protection is not only about resisting heat at a specific temperature. It also depends on how gloves perform in real working conditions: how they transfer through materials, build over time, and interact with the tasks being performed.
Heat in Welding: More Than Just Temperature
Handling hot components means protection depends on how long the glove can delay heat transfer, not just on its maximum temperature.
Heat also builds over time. Repeated short contact with hot surfaces can gradually increase the temperature inside the glove, making exposure time just as important as heat intensity.
EN 407: Protection Against Heat and Fire
EN 407:2020 is the European standard for evaluating thermal performance for protective gloves and other hand protective equipment against heat and/or fire-related risks.
The updated EN 407:2020 standard replaces the former EN 407:2004 and also includes domestic oven gloves under the Personal Protective Equipment (PPE) regulation.
*Pictogram when no flame
protection is claimed.
EN 407 helps classify how gloves perform under different types of thermal exposure, making it easier to compare products for welding, metal handling, and high-heat applications.
It includes testing for:
EN 407:2020 marking provides a useful benchmark for comparing heat-resistant gloves and identifying the types of heat protection they are designed to offer.
Explore our Knowledge Centre guide to EN standards and protective glove markings to find out more.
Why Material Composition Matters
Heat protection is not only about material choice. Material and design composition also plays a major role in thermal performance.
Key factors that influence protection:
- Material thickness and density
- Layering and internal linings
- Air space within the glove
Air gaps can slow heat transfer by acting as insulating barriers. Inner linings can also improve heat resistance and mechanical durability.
This is why two gloves made from similar materials may perform very differently when used.
Different Welding Tasks Require Different Gloves
Glove requirements vary depending on the welding method used.
TIG Welding (Tungsten Inert Gas Welding) is often used for precision work and applications that require clean, controlled welds.
Because the process involves greater control and detailed hand movements, welders typically need:
- High finger sensitivity
- Flexibility and dexterity
- Good grip and control
TIG welding gloves are usually thinner and made from softer materials such as goatskin. Although TIG welding generally produces lower heat exposure than heavier welding methods, gloves still need to protect against intermittent heat and sparks without reducing precision.
MIG and MAG Welding involve higher temperatures, more spatter, and greater thermal exposure than TIG welding.
These applications often require gloves that priorities
- Heat insulation
- Durability over dexterity
- Resistance to sparks and molten metal splashes
For this reason, thicker materials such as cowhide are commonly used.
The increased insulation helps delay heat transfer during repeated handling of hot materials and prolonged exposure to high temperatures.
Choosing the wrong glove type can compromise both safety and performance.
A precision-designed glove may not provide enough insulation for high-heat applications, while overly thick gloves can reduce control and increase hand fatigue during detailed work.
Durability: An Overlooked Aspect
Heat resistance is not static. Over time, exposure to high temperatures, mechanical stress, and environmental conditions can affect glove performance.
Gloves may:
- Stiffen
- Degrade
- Lose insulating properties
Potential risk:
- Reduced protection during use
- Increased need for replacement
- Higher operational risk
Gloves that maintain their performance longer provide more consistent protection and reliability.
Durability is not an added benefit—it is part of the protection itself.
Heat Protection Beyond Welding
Although often associated with welding, heat-resistant gloves are used across many industries, including:
- Metal processing and heavy industry
- Maintenance and industrial handling
- Food production and commercial kitchens
In some environments, the primary hazard is not dry heat but steam, which behaves differently and can penetrate certain materials more easily.
This highlights the importance of understanding the specific type of heat exposure, not just the temperature.
Matching Protection to the Application
Selecting the right glove involves more than checking a standard rating.
Important factors to consider:
- Type of heat exposure (contact, radiant, molten metal, steam)
- Duration and frequency of exposure
- Need for dexterity vs insulation.
- Long-term performance and durability
Heat behaves dynamically. It builds, transfers, and interacts with materials over time.
Standards such as EN 407 provide an important foundation for evaluating thermal performance, but effective hand safety also depends on how gloves perform during real use and duration of exposure.
Understanding how heat behaves in practice is essential to achieving reliable protection, comfort, and performance in welding and other high-heat environments.
Hear the Expert Discussion
This article is inspired by practical insights shared by Granberg specialists in an episode about Heat and Welding of Handskpodden.
Podcast available in Norwegian-Swedish.
Recommended Welding Gloves
Looking for welding gloves designed for demanding heat environments and different applications?
GRANBERG 3700K – Soft and flexible goatskin gloves for precision work and high fingertip sensitivity perfect for TIG welding.
GRANBERG 3820 – Flexible gloves with heat and cut protection for MIG welding and handling sharp materials.
GRANBERG 1695 – Extra-long cuff for extended coverage against high heat, sparks, and welding debris.