Z-Flex is the Most Durable & Protective Aluminized Fabric Available

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A well-insulated suit designed for kiln & furnace maintenance

The X50 Kiln Suit is a heavily insulated aluminized suit designed to protect from extended exposure to extreme heat. The X50 suit features a Z-Flex® Aluminized Fiberglass Fabric radiant shell, Z-Flex® Aluminum Foil Fabric layers for added radiant protection, fiberglass mat insulation to protect from exposure to conductive and convective heat, and a Neoprene lining to protect from steam, vapor, and gas. All X Series suits are designed to be worn over standard industrial work wear. It is important for users to wear long-sleeve shirts and pants made with non-flammable fibers.

The X50 suit can be used in a wide range of industries and applications including in the casting, foundry, processing, and petrochemical industries for kiln and oven operations and hot maintenance and repair activities.

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X50 Kiln Suit

  • Item: 2100343
  • Weight: 46.00 lbs21 kgs
  • Size: One Size Fits Most
  • Style: X50
  • Ambient Temp: 1500 °F815 °C
  • Radiant Temp: 3000 °F1650 °C

Suit Construction

  • Z-Flex A-601 aluminized glass outer shell
  • Z-Flex AF F-628 Foil
  • Fiberglass mat insulation
  • Neoprene liner

Testing & Certification

The suit lay-up meets the ISO 11612 Standard

The Z-Flex® shell meets or exceeds the following:
  • Radiant Heat: ISO 6942 / EN 366 / ASTM F1939
  • Convective Heat: ISO 9151 / EN 367
  • Limited Flame Spread: ISO 15025 / EN 532
  • Molten Metal: ISO 9185 / EN 348 / ASTM F955
  • Abrasion Tear Resistance: ISO 13937 / EN 388


  • The X50 suit comes standard in one size designed to fit the majority of users.
  • The suit is also available in 2XL and custom sizes for an additional charge. 
  • See our Sizing Chart for more information.


  • The total weight of the jacket and pants is approximately 28 lbs (12.7 kg).
  • The total weight of the entire ensemble (jacket, pants, hood, gloves, and boots) is approximately 46 lbs (20.9 kg).

Suit Features

  • Double storm fly closure with snaps
  • Integrated breathing pouch to accommodate SCBA
  • SCBA Pouch measures 29" (74 cm) in length and has a 9" (23 cm) inner diameter
  • Raglan sleeves for freedom of movement
  • Inner cinch for a tight seal
  • ZetexPlus elbow pads for durability and protection from contact heat
  • Zipper closures at the sides of the waist and on the pant cuffs for easy entry
  • Sewn-in suspenders for adjusting pant drop
  • ZetexPlus knee pads for durability and protection from contact heat
  • Dome style hood
  • Hard cap with ratchet adjustment*
  • Full shoulder length drape with adjustable underarm straps
  • Rounded bib for improved range of motion
  • Dual-layer clear glass lenses
  • Designed for use with low profile SCBA only
  • Aluminized mitts
  • ZetexPlus palm and thumb for protection from direct contact with hot objects
  • Cuff gusset for easy entry
  • Wooden soles for protection from hot floors
  • New easy-on design
  • Adjustment straps for fit
  • For wear over work boots
Also Included
  • Ballistic nylon duffle bag for storage
  • Nomex® balaclava
* Hard cap meets ANSI-Z89.1-2009 impact resistance tests