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Portwest  |  SKU: 262115

Portwest FR412 Bizflame Work Lightweight FR Trousers

£23.33 Ex. VAT
£28.00 Inc. VAT
Why buy from us
  • Pay in 30 days with a Trade Account. No fees.
  • Trade and bulk pricing available on request
  • UK stock, dispatched fast

Seen it cheaper elsewhere?

Call the team and we'll beat any genuine quote.

0161 706 0479

Colour: Navy

Ships in 1 – 2 working days
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  • Made in the UK
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  • Next Day Delivery Available
Multi Pockets Multi Pockets
Mobile Pocket Mobile Pocket
Flame Retardant Flame Retardant
Lightweight Lightweight
Reflective Reflective
Stretch Stretch
UV Protection UV Protection
EN 1149 EN 1149
EN 17353 EN 17353
EN ISO 11611 EN ISO 11611
EN ISO 11612 EN ISO 11612
IEC 61482 IEC 61482
Waterproof Rating: Not Waterproof
Thermal Rating: Not Thermal Rated
Logo Printing Available: Yes
Embroidery Available: Yes
Why it works

Why choose the FR412

Multi-norm FR protection

Certified to EN ISO 11612, EN ISO 11611 and IEC 61482 for heat, welding and arc flash risks.

Reflective tape for visibility

Flame-resistant reflective tape at the lower leg improves visibility in low light.

Built for all-day wear

Side elastic waist, extendable leg length and 7 pockets keep the trousers practical through a full shift.

40+ UPF rated fabric

Blocks 98% of UV rays, useful for outdoor and high-sun site work.

Durable Bizflame construction

Lightweight FR fabric built for repeated wear and wash in demanding site conditions.
Overview

Portwest FR412 Bizflame Work Lightweight FR Trousers - Overview

Lightweight flame-resistant work trousers from Portwest's Bizflame Work range, built for site operatives who need heat and flame protection without the bulk of a heavier FR fabric. Multi-norm certified for welding, arc flash and ATEX environments.
40+UPF
Fabric UV rating
98%
UV rays blocked
7pockets
Total pocket count
31-33in
Adjustable leg length
Dimensions
Leg length31in to 33in (extendable)
SizesS to XXXL
Details
BrandPortwest
ModelFR412
ColoursNavy, Orange
WaistSide elastic
CustomisationEmbroidery and logo printing available
StandardsEN ISO 11612, EN ISO 11611, IEC 61482, EN 1149, EN 17353

Frequently asked questions

What safety standards does the FR412 meet?

It's certified to EN ISO 11612 (heat and flame), EN ISO 11611 (welding), IEC 61482 (arc flash), EN 1149 (antistatic) and EN 17353. Ask us for the current test certificates if you need the specific classification for your risk assessment.

Are these trousers suitable for explosive atmospheres?

Yes, the FR412 is rated for ATEX-classified areas, alongside its welding, heat and arc flash certifications.

Which sizes and colours can I order?

Navy and orange, in sizes S to XXXL.

How much can I adjust the leg length?

The FR412's leg length extends from 31 inches to 33 inches, so one size covers a small height range without hemming.

How many pockets does the FR412 have?

Seven in total: a cargo pocket, a rule pocket, a phone pocket and two back pockets, plus the usual front pair.

Can I get my company logo added?

Yes, embroidery and logo printing are both available on this product - talk to us about trade-account branding.

Will the FR412 keep me warm or dry?

No - this is a lightweight FR fabric with no thermal insulation or waterproof rating, so it suits warm working conditions rather than cold or wet ones. Pair it with FR outerwear if you need extra protection.

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