The Portwest FR426 PW3 Modaflame Rain+ Hi-Vis Multi-Norm FR Winter Trousers feature detachable braces with a zip off function at the back, two-tier bottom loading knee pad pockets and zipped side leg openings, and come in Orange/Black and Yellow/Black.
Frequently Asked Questions
What certifications does the FR426 carry?
The FR426 is certified to EN ISO 11612 (A1+A2, B1, C1, F1) for heat and flame, EN ISO 11611 Class 1 (A1+A2) for welding, EN 1149-5 for antistatic protection, EN 61482-1-1 and EN 61482-1-2 APC 2 for arc flash, EN 13034 Type 6 for limited chemical splash, EN ISO 20471 Class 2 for high visibility, EN 343 Class 4:1 X for weather protection, and EN 342 for cold protection.
Is the FR426 arc-flash rated?
Yes. It's rated ATPV 37 cal/cm² (ELIM 32 cal/cm²) under EN 61482-1-1, and holds APC 2 under EN 61482-1-2, the higher of the two arc protection classes.
Can I wear the FR426 for welding?
Yes, within its rated class. The FR426 is certified to EN ISO 11611 Class 1 (A1+A2), covering less hazardous welding situations than Class 2. Check whether your task needs the higher Class 2 rating.
Is the FR426 waterproof?
It's rated Class 4:1 X under EN 343, the top water penetration resistance tier under the updated standard, paired with the lowest breathability class.
Does the FR426 keep you warm in cold weather?
Yes. It's also certified to EN 342 for protection against cold, with a measured thermal insulation value of 0.337 m²·K/W.
Is the FR426 approved for rail (RIS) work?
The FR426 carries RIS-3279-TOM Issue 2 approval, but only in the Orange/Black colourway. The Yellow/Black option is not RIS-approved.
How should I wash and care for the FR426 to keep its FR protection?
Follow the care label sewn into the garment and avoid fabric softener and bleach based products, which can degrade flame resistant fibres over time. Retire the trousers if visibly damaged or if they fail a wash care check.
