The Portwest BZ14 Bizweld Work FR Trousers are heavyweight flame resistant trousers for welding and other work involving heat. They protect against radiant heat and molten iron splashes, so one pair covers a range of hot-work hazards.
The 330g cotton fabric is built for demanding daily use, with twin-stitched seams for added strength. Three pockets, including a rule pocket, keep tools and small items close to hand, and reflective tape at the leg ends makes you easier to see in low light.
Key features
- Protection against radiant, convective and contact heat for hot-work tasks
- Premium sew-on flame resistant reflective tape at the leg ends improves visibility in poor light
- Twin-stitched seams add durability for heavy daily wear
- Three pockets give ample storage for tools and small items
- Dedicated rule pocket keeps a folding rule within easy reach
- Half elasticated waist helps keep the trousers secure and comfortable as you move
- UPF 40+ rated fabric blocks 98% of UV rays when working outdoors
Materials and performance
Bizweld Work fabric: 100% cotton, 330g.
Standards and protection
Certified to EN ISO 11612 (A1+A2, B1, C1, E2, F1), EN ISO 11611 Class 1 (A1 + A2), and EN 61482-2 and EN 61482-1-1 (ELIM 8.3 CAL/CM², ATPV 10.9 CAL/CM²). Classified as CE-CAT III personal protective equipment.
Fit and sizing
Regular fit. See our Portwest Sizing Guide for detailed information.
Care
- Machine wash at 40°C on a gentle cycle
- Do not bleach
- Do not tumble dry
- Line dry
- Iron at a medium temperature (max 150°C)
- Do not dry clean
Add your logo
If you’d like to add your logo to the Portwest BZ14 Bizweld Work FR Trousers, please contact us.




































