HexArmor Catalogue - Cold Weather

Technology to Defend Against Cold Stress

When temperatures drop, don’t let your safety record take an unexpected nose dive. HexArmor ® understands that safety doesn’t go on vacation when the snow starts flying. Properly outfitting your crew with cold weather PPE is one of the most important steps you can take to combat cold stress. The Dangers of Cold Weather The most common cold weather injury is frostbite, which can occur suddenly in the event of contact with cold metal or super-cooled liquids, such as petroleum, oil, and lubricants. Gloves should always be worn to handle tools and equipment – never use bare hands on metal in the cold. In addition to ensuring PPE has thermal properties, you need to make sure your workers’ hands stay dry. Water conducts heat away from the body 25 times faster than air, so wet hands are considerably more at risk of freezing. Fortunately, HexArmor ® offers a variety of winter gloves with built-in waterproof liners.

Clo Rating Comparison The insulation of clothes are often measured in the unit “clo,” where:

Corresponds to a naked person Corresponds to the insulating value of clothing needed to maintain a person in comfort sitting at rest in a room at 70° with air movement of 0.1 m/s and humidity less than 50%

clo = 0 clo = 1

Winter Parka: 0.70 clo

T-Shirt: 0.09 clo

Thick Sweater: 0.35 clo

Compare those to some of the most common thermal liners used in cold weather hand protection: C40 = 0.7 clo C100 = 1.3 clo

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