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Portwest  ·  SKU: 262367

Portwest FR56 Bizflame Work Two Tone FR Trousers

Portwest FR56 FR trousers - EN ISO 11611 welding, EN ISO 11612 heat and IEC 61482 arc protection. Two-tone reflective design, sizes S-4XL.

£35.83 each, ex VAT
£43.00 inc VAT
Ships in 1 to 2 working days

Colour: Navy
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Ships in 1 to 2 working days

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  • Made in the UK
  • Next Day Delivery Available

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  • UK stock. Stock and lead time are shown above.
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Multi Pockets Multi Pockets
Contrast Colour Contrast Colour
Durable Durable
Flame Retardant Flame Retardant
Knee Pad Access Knee Pad Access
Reflective Reflective
Stretch Stretch
UV Protection UV Protection
Welding Welding
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
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Why it works

Certified Protection, Built to Work

Certified flame & welding protection

Meets EN ISO 11611 for welding and EN ISO 11612 for heat and flame protection.

Arc flash & antistatic rated

Certified to IEC 61482 for arc-flash risk and EN 1149 for antistatic performance.

Enhanced visibility design

Two-tone reflective panels meet EN 17353 for extra visibility in medium-risk conditions.

Built for a full day's work

Six pockets, a half-elasticated waist and a durable brass zip keep tools to hand and the fit secure.
Overview

Portwest FR56 Bizflame Two Tone FR Trousers - Overview

The Portwest FR56 is a flame-resistant work trouser built for welders, fabricators and industrial maintenance teams who need heat, arc and welding protection in one garment. The two-tone design pairs a durable navy body with contrasting reflective panels for extra visibility on site.
6pockets
Storage
40+UPF
UV protection
S-4XLsize range
Sizing
Dimensions
SizesS to 4XL
ColourwaysNavy (red contrast) and Navy/Royal (royal blue contrast)
Details
MaterialFlame-resistant Bizflame Work fabric
FasteningBrass zip fly
WaistHalf elasticated for a secure, comfortable fit
HemsHook and loop adjustable leg hems
StandardsEN ISO 11611, EN ISO 11612, IEC 61482, EN 1149, EN 17353
GenderUnisex
BrandingEmbroidery and logo printing available

Frequently asked questions

What protection does the FR56 give a welder?

It's certified to EN ISO 11611 for welding and allied processes, EN ISO 11612 for heat and flame, and IEC 61482 for arc-flash risk, so it covers welding sparks, radiant heat and electrical arc hazards in one trouser.

Does the two-tone design mean anything functional, or is it just styling?

Both - the contrast panels carry reflective tape rated to EN 17353 for enhanced visibility, so the colour split isn't purely cosmetic.

Can I wear the FR56 in a potentially explosive (ATEX) atmosphere?

Yes, the fabric is suitable for ATEX environments.

Is the FR56 warm enough for winter outdoor work?

No, it carries no thermal insulation rating, so pair it with FR-rated base or mid layers in cold conditions.

Will these trousers keep me dry in the rain?

No, they aren't rated waterproof to EN 343 - they're built for flame, heat and arc protection rather than wet-weather work.

What sizes and colours does the FR56 come in?

Sizes S to 4XL, in Navy with red contrast panels or Navy with royal blue contrast panels.

Can I get the FR56 branded for my company?

Yes, embroidery and logo printing are both available to order.

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