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Safety Rated Heat-Resistant Gloves - What You Need to Know

#TBM4 Superior GloveĀ® Cool GripĀ® Terry Cloth 12-inch Bakers MittsIn order for a glove to be considered heat resistant, it must be within a standard scale that specifies thermal performance for protective gloves against heat and/or fire. The glove’s rating is determined by the highest contact temperature where time to second degree burn is over 15 seconds and time to pain is over 4 seconds. The performance level will fall between 1 (under 176°) and 5* (608°F) and has many variables to determine that level. Thermal hazard gloves have a fire symbol on them so it is recognizable what they are intended for.

The Factors that Determine a Good Heat Resistant Glove are as Follows:

  1. Resistance to Flames : This factor is based on the amount of time it takes for the material to fully extinguish after the source of flame has been removed. After 15 seconds of burn time, the seams of the garment should not come apart.
  2. Thermal Contact Resistance : This factor is based on a temperature range between 212-932 degrees Fahrenheit where the worker should not feel any pain from heat transfer for at least 15 seconds.
  3. Convective Heat Transfer : This factor is based on the amount of time the material is able to postpone the transfer of heat from a flame.
  4. Radiant Heat Resistance : This factor is based on the amount of time the material is able to postpone the transfer of heat when it is exposed to radiant heat waves.
  5. Molten Metal Resistance : This factor is based on the number of splashed molten metal drops it takes to heat the material to a regulated temperature level. This is the tolerance time measured in seconds.
  6. Molten Metal Resistance in Large Quantity : This factor is based on the weight of molten metal that it takes to cause pin holes or smoothing of simulated skin placed directly behind the material during heat testing. The test will fail if metal drops stay stuck to the material or if it ignites.
  7. Conductive Heat Resistance Classification (C.H.A.R) Chart : Below is a list of approximate C.H.A.R. temperatures as adapted from the ANSI Standards Guide for common glove materials. Refer to this chart to see if the material being used is appropriate for the temperature required to perform the task at hand. This chart is measured in both Celsius and Fahrenheit so your company can get an accurate measurement of heat that will be tolerated for each material listed.

There are a few factors you should think about in order to ensure that you choose the heat-resistant glove that’s best for you. Consider the following:

  • Is degradation an issue? (see below)
  • How much insulation do I need?
  • What is the temperature of the workplace I’ll be in?
  • Will I be handling heated objects? What will be the actual temperature of the objects? How long will I be holding them for? (ie. What will the ‘time to pain’ be?)
  • How much dexterity will I require in order to get the job done? Will mitts or gloves be more beneficial in my workplace?

When it comes to choosing the best style of heat-resistant gloves for the job, these factors are important. For example, the temperature of the object will determine what type of fiber is required. And, if having a full range of movement in your hands is crucial for getting the job done, you won’t want to be wearing a glove that provides excellent heat protection but is extremely bulky and hard to maneuver. For this reason, it’s crucial that when choosing your next pair of heat-resistant gloves, you keep your work conditions and job requirements top of mind. Another factor to consider is the degradation or melting temperature of the glove materials. Below is a rough guideline of the degradation/melting temperature of various heat-resistant material:

Optimal material for low heat resistance

Optimal material for high heat resistance

  • Leather 430°F
  • Kevlar® 850°F
  • PBI  1300°F
  • Carbonx 2000°F

Work in Complete Confidence!

You can follow this link to watch a brief you tube video explaining heat resistant gloves in more detail. Superior Glove® measures their heat gloves to North American Standard (ASTM F1060) and provides a vast line of ASTM ANSI Rated industrial work gloves, mitts, sleeves and pads. Below are a few of their most popular hand protection styles.

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Popular Gloves that meet safety standards:

  • #TK835LG2 Extreme Dragon™ Kevlar® Terry Lined Gloves are a great choice for high heat applications. The outer shell is made from 100% Kevlar® and they have a 100% terry liner. They have heat protection up to 600 degrees Fahrenheit and are ANSI level 5 rated. They feature a 4 inch leather gauntlet cuff for added protection of the forearm.
  • #SCPSCLP Cool Grip® Knit Gloves with Leather Palms are made of a heavy duty poly/cotton blend, a SilaChlor® center layer that provides thermal heat protection and leather palms that wrap around the finger and thumb. They provide heat protection up to 500 degrees Fahrenheit and are ANSI rated heat level.
  • #TBGOB6 Cool Grip® Bakers Gloves are made of preshrunk, washable 32 oz. heavy-duty knit terry gloves for intermittent protection against dry thermal burn during food processing. Processed with Oilbloc™ treatment for exceptional water and oil repellency. Reinforced Kevlar® thumb patch. 15" length. Extended 6" cuff for added protection. The heat protection goes up to 446 degrees Fahrenheit and they are rated an ANSI heat level 4.

Shopping for your next pair of heat-resistant work gloves? Why not...

+Browse our Heat-Resistant Gloves Today!

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+800.274.4637   |   +716.668.4001   |    info@MDSassociates.com

 

*You might notice that heat level 5 gloves are only rated to 608°F, but that's only because the testing standard used to rate heat-resistant gloves tops out at that temperature.

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