Answer
Oct 23, 2025 - 03:51 PM
Thank you for your question!
The Jomac Canada “M340CA-18 Carbo-King Heat Protective Mitts” are built for extremely high-temperature applications. According to Jomac’s published specifications:
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Shell material: aramid fibre
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Inner lining: wool
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Fabric weight: 15 oz
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Rated heat resistance: up to 2100 °F (1149 °C) under the right conditions.
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Length: approximately 18" (large size) with a long gauntlet cuff for additional protection. Cobalt Industrial+2Tenaquip+2
So, will they allow you to hold onto something hot for long periods without burning or melting? Here’s a breakdown:
🔍 What they can do
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Yes — these mitts are designed to withstand very high surface temperatures (up to 1149 °C / 2100 °F) thanks to the aramid shell and wool lining.
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The long cuff offers extra arm protection from radiant heat or splashes.
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Because the fabric “does not fray like conventional fiberglass products,” they are more durable in heavy-duty heat-exposure environments. Cobalt Industrial+1
⚠️ What they cannot guarantee
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“Holding something hot for long periods” depends on many factors: surface temperature, how much direct contact, how much insulation between the object and the mitt, and how long the contact is. Even “2100 °F rated” doesn’t mean your hand will stay cool indefinitely — it means the mitt will not fail (melt or burn through) under those conditions when used correctly.
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If the hot object has sharp edges, point contact, excessive pressure, or you are handling it for extended durations without moving or repositioning, heat may build up on the inside of the glove and eventually transfer to the hand.
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The mitt protects against heat, but not against all hazards: it does not guarantee full insulation for all time-periods. User technique, object geometry, contact time, and environmental conditions still matter.
🛠️ Best Practice Tips for Long-Use
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Ensure the hot object is clean and free of molten spatter that might damage the mitt.
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Do not rely on the mitt alone if the object is extremely hot and you will be holding it for an extended time — rotate tasks, reduce contact time, or use additional insulation if needed.
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Inspect the mitts regularly for wear, damage, or thinning of the material.
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Use the full length of the gauntlet cuff so your wrist/forearm are also protected.
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Store and maintain the mitts according to manufacturer instructions to preserve their protective capacity.
