Portwest BIZ4 Flame Retardant Dungarees
Portwest BIZ4 Flame Retardant Dungarees product features :
- Material and parameters - Bizweld Work outer fabric, 100% cotton , 330 gsm - material designed for flame-retardant clothing.
- Certified thermal protection - Meets EN ISO 11612 (A1+A2, B1, C1, E2, F1) and EN ISO 11611 (Class 1 A1+A2) standards - protection against radiant, convective and contact heat and molten metal splashes.
- Arc Protection and ATPV - Complies with EN 61482-1-1 (ELIM 8.3 cal/cm², ATPV 10.9 cal/cm²) and ASTM F1959/F1959M-12 (ATPV 11.2 cal/cm², HAF = 80.4%).
- Practical pockets - Five spacious pockets: a chest pocket with a snap fastening, two side pockets, a back pocket with a flap and additional pockets for a ruler and a mobile phone.
- Adjustment and fit - The elastic waistband and adjustable, elastic shoulder straps ensure a secure and comfortable fit while working.
- Durable Finishes - Solid brass zipper and double stitching enhance durability and reliability during heavy use.
- UV Protection - UPF 40 fabric blocks up to 98% of UV rays for added protection when working outdoors.
- Compliance and declarations - Product certified and documented in accordance with the relevant safety standards; product data sheet and declarations of conformity available.
FAQ - Portwest BIZ4 Flame Retardant Dungarees
What safety standards do these overalls meet?
The dungarees are certified m.in. accordance with EN ISO 11612, EN ISO 11611, EN 61482-1-1 and ASTM F1959/F1959M-12, among others – details of ATPV and ELIM values can be found in the product documentation.
What is Bizweld Work material intended for?
Bizweld Work is a flame-retardant cotton fabric (100% cotton , 330 g) designed for protection during welding and related work, offering heat resistance and protection against molten metal splashes.
How can dungarees be adjusted to the wearer's figure?
The fit is ensured by an elastic waistband and adjustable, elastic straps that allow you to adjust the tension and comfort of your wear.
What elements are designed for wear resistance?
A durable brass zipper and double stitching increase the durability of the material and finishes during heavy use.
Questions
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Question about the product
Details
EN 11612 - Clothing for protection against heat and flame
EN 61482 - Protective clothing against the thermal hazards of an electric arc
Oblique
Phone pocket
Rear
Ruler pocket
Comments
Manufacturer: Portwest

EU responsible person:
Portwest Polska
Wiejska 49
41-250 Czeladz Poland
obslugaklienta@portwest.com
Download - General Safety Instructions for Work Trousers
Safety warnings:
- Not intended for children - intended for adult users only.
- Risk of suffocation or choking due to packaging – keep foil packaging away from children.
- The trousers do not provide protection against chemical hazards, fire, electrical current or radiation unless specified in the product documentation.
- Knee protection: effectiveness depends on the use of certified knee pads and their correct positioning.
- Reflective elements: may lose effectiveness if dirty, worn or covered by other clothing.
- Do not modify the construction of the trousers – changes may reduce the protective properties.
- Damaged trousers should be replaced immediately – especially if the knee pad pockets are torn or the reflectors are worn out.
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