The AlphaTec® SUPER (formerly known as TRELLCHEM® SUPER), is the true workhorse of the Ansell gastight suit range. Highly chemical resistant and durable, yet soft and flexible, it has an outstanding performance record and users within all areas.

  • Combination of antistatic butyl rubber with a Viton® top coating for outstanding resistance to attack from a wide range of chemicals
  • Exceptional protection against alkalis, strong acids (e.g. hydrofluoric acid), petrochemicals, chlorinated solvents, aromatics and oils
  • Maximises strength and durability while maintaining softness and flexibility, ensuring increased wearer comfort
  • Approved for work in explosive atmospheres


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AlphaTec® SUPER comes in four different designs to fit all user preferences:

  • Encapsulating design type CV (wide vision visor with 3D depth of 20 cm) - Well-proven design that fits on top of all major SCBA brands and bottle sizes
  • Encapsulating design type VP1 (larger visor) - Fits on top of all major SCBA brands and bottle sizes
  • Non-encapsulating design type T - Suitable for work in confined spaces
  • Encapsulating design type FREEFLOW - For use with external air source (see Air-Fed Garments)


Outer: Butyl rubber and a top layer of Viton® rubber coated on polyamide fabric
Inner: Butyl rubber

This construction maximizes strength and durability while maintaining softness and flexibility. The combination of antistatic butyl rubber with Viton® on top offers an outstanding resistance to attack from a wide range of chemicals.


Stitched and sealed inside and outside with a glued-on tape, made of the same rubber type as the fabric coating.


Yellow with orange inside.


  • EN 943-1:2015 + A1:2019
  • EN 943-2:2019
  • EN 1073-2:2002 (radioactive particle protection)
  • EN 14126:2003 (infective agent protection)
  • EN 1149-5:2008 (antistatic suit material)
  • Approved for use in ATEX zones 0, 1, 2/20, 21, 22 and chemical group IIA, IIB, IIC
  • SOLAS*

Only non-encapsulating / type T suits.

VISOR (encapsulating suits)

Made from a rigid 2 mm impact and chemical resistant PVC. Comes in two optional sizes; CV or the larger VP1.
Covered by a replaceable, antistatic Tear-off/ATEX lens.

FACE SEAL (non-encapsulating/type T suits)

Made from rubber and anatomically designed for optimum safety and comfort. A Mini Hood comes with all type T suits.
Read more about the AlphaTec® Mini Hood.

GLOVES & attachments

AlphaTec® #38-628 Viton®/Butyl rubber gloves in combination with rubber cuffs for added safety. Other glove options are available. The gloves are attached with a Bayonet glove ring system, which offers quick and simple glove exchange. 
Read more about Gloves.

FOOTWEAR & attachments

Sewn-in socks/booties made of the suit material. Alternatively attached black nitrile rubber safety boots with European approval as Firemen's boots. The boots are fixed with an ergo­nomically designed ring attachment, for simplified boot exchange. Read more about Boots.


HCR zipper, which includes a barrier film for increased chemical resistance. The zipper is closing downwards, for added safety, and is protected by a flap/splash guard.


A ventilation system is included as standard. For the safety of the wearer, it provides a constant level of overpressure inside the suit. The Regulating valve has 3 ventilation rates (2, 30 and 100 l/min) plus zero/off position and is an option also available in a passthrough version for use with external air supply. Encapsulating suits have two overpressure valves in the back of the hood. Non-encapsulating suits have one overpressure valve on the chest. Read more about Suit Ventilation.


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