Portwest Bizweld Work FR Coverall

Voted the number one favourite coverall in the welding industry, the Portwest Bizweld Work FR Coverall BZ523 delivers complete head-to-ankle flame resistant protection for professionals working in hazardous heat environments. This best-selling coverall combines comprehensive multi-standard safety certification with the comfort and breathability of 100% cotton construction.

Crafted from Portwest's premium Bizweld fabric – a 330gsm (9.5oz) 100% cotton material with a durable flame resistant finish – this coverall provides certified protection against radiant, convective, and contact heat, as well as molten metal splash. The fabric offers the natural comfort that only cotton can deliver, allowing workers to stay comfortable throughout long shifts in demanding conditions.

The generous, roomy fit ensures unrestricted movement for tasks requiring bending, stretching, and reaching, while thoughtful design features like ample pocket storage, a concealed phone pocket, and radio loop provide the practical functionality that working professionals need. Whether you're welding, working in foundries, or performing hot work maintenance, the BZ523 is engineered to keep you protected and productive.

Key Features & Benefits

100% Cotton Bizweld Fabric The Bizweld fabric is manufactured from 100% cotton with a high-performance flame resistant finish. Cotton provides natural breathability and comfort, making it ideal for all-day wear in hot working environments. The fabric absorbs moisture effectively and feels comfortable against the skin – significant advantages over synthetic FR alternatives.

Multi-Standard Flame Resistant Protection This coverall provides comprehensive protection against multiple heat hazards including flames, radiant heat, convective heat, contact heat, and molten metal splash. The FR finish ensures the fabric self-extinguishes when removed from the ignition source, preventing ongoing burn injuries.

EN ISO 11611 Welding Protection Certified to EN ISO 11611 Class 1 (A1+A2), this coverall meets the stringent requirements for welding and allied processes. It protects against small splashes of molten metal, short contact time with flame, radiant heat, and UV radiation from the electric arc during welding operations.

EN ISO 11612 Heat & Flame Protection The BZ523 achieves full EN ISO 11612 certification (A1+A2, B1, C1, E2, F1), demonstrating protection across multiple heat transfer mechanisms including limited flame spread, convective heat, radiant heat, molten aluminium splash, and contact heat.

Arc Flash Protection With an ATPV rating of 11.2 CAL/CM² (HAF 80.4%), this coverall provides certified arc flash protection for workers exposed to electrical hazards. The garment meets IEC 61482-2 requirements for protection against electric arc thermal hazards.

UV Protection The Bizweld fabric offers UPF 50+ UV protection, blocking 98% of harmful UV rays – essential protection for outdoor welding and workers exposed to UV radiation from welding arcs.

Premium FR Aramid Thread The coverall is constructed using flame resistant Aramid thread throughout, ensuring the stitching maintains its integrity when exposed to heat and flame – a critical safety detail often overlooked in lesser quality FR garments.

Generous Roomy Fit Designed with a generous fit that allows complete freedom of movement without restriction. The roomy cut enables bending, kneeling, reaching, and other physical tasks required in industrial environments.

Practical Pocket Configuration Extensive storage includes:

• 2 front pockets
• 2 back pockets
• 2 side pockets
• Concealed mobile phone pocket
• Rule pocket
• Radio loop for communication devices

Comfort Features

• Concealed stud front fastening for easy donning/doffing
• Stud adjustable cuffs for personalised fit
• Side elastic waist for comfort and mobility
• Chest pockets with secure stud closure

Safety Certifications & Standards

The Portwest BZ523 Bizweld Work FR Coverall meets or exceeds the following safety standards:

Understanding the Certifications

EN ISO 11612 Performance Codes Explained:

• A1+A2: Limited flame spread – both surface and edge ignition tested
• B1: Convective heat protection – Level 1 (4-10 seconds)
• C1: Radiant heat protection – Level 1 (7-20 seconds)
• E2: Molten aluminium splash protection – Level 2 (100-350g)
• F1: Contact heat protection – Level 1 (5-10 seconds at 250°C)

EN ISO 11611 Class 1: Designed for welding techniques with lower levels of spatter and radiant heat. Suitable for manual gas welding, TIG welding, MIG welding (light duty), microplasma welding, spot welding, and oxygen cutting.

Arc Flash Protection (ATPV 11.2 CAL/CM²): The Arc Thermal Performance Value indicates the incident energy level that would result in a 50% probability of sufficient heat transfer to cause a second-degree burn. An ATPV of 11.2 CAL/CM² provides protection suitable for many electrical work tasks.

HAF 80.4%: Heat Attenuation Factor – this means the fabric blocks 80.4% of incident heat energy, significantly reducing thermal exposure to the wearer.

Technical Specifications

Size Guide

Leg Lengths:

• Regular: 31" (79cm) inside leg
• Long/Tall: 33" (84cm) inside leg

Ideal Applications

The Portwest Bizweld Work FR Coverall BZ523 is the professional choice for:

Welding & Metal Fabrication:

• MIG, TIG, and arc welding
• Gas welding and brazing
• Plasma cutting
• Oxy-acetylene cutting
• Spot welding
• General metal fabrication

Heavy Industry:

• Steel works and foundries
• Shipbuilding and ship repair
• Metal casting operations
• Blacksmithing
• Heavy manufacturing

Electrical Work:

• Electrical panel maintenance
• Switchgear work
• Cable installation
• Electrical utilities

Additional Industries:

• Automotive manufacturing
• Aerospace manufacturing
• Rail industry maintenance
• Oil and gas (non-ATEX areas)
• Power generation
• Industrial maintenance

Why the Bizweld Coverall is Voted #1 by Welders

Natural Cotton Comfort Professional welders consistently rate comfort as a top priority – uncomfortable PPE leads to reduced wear compliance and increased accident risk. The 100% cotton Bizweld fabric breathes naturally, absorbs perspiration, and doesn't cling uncomfortably like synthetic materials.

Proven Protection The comprehensive multi-standard certification provides confidence that you're protected against the real hazards encountered in welding environments: sparks, spatter, molten metal splash, radiant heat, and UV radiation.

Practical Design Features like the generous cut, ample pockets, radio loop, and adjustable cuffs demonstrate that Portwest understands the practical needs of working welders. Tools and devices are always within reach, movement is unrestricted, and the garment stays secure throughout the working day.

Durability Bizweld fabric maintains its FR properties through up to 50 industrial washes, providing excellent cost-per-wear value. The quality construction and Aramid thread ensure the garment withstands demanding industrial use.

Value The Bizweld range delivers professional-grade protection at a competitive price point, making certified FR protection accessible without compromising on safety.

Why Choose FR Coveralls Over Separate Jacket and Trousers?

Coverall Comparison: BZ523 vs Other Bizweld Styles

Care Instructions

To maintain the flame resistant properties and longevity of your BZ523 coverall:

• Machine wash at maximum 40°C (mild process)
• Do not bleach
• Do not tumble dry
• Line dry only
• Iron at maximum 150°C (do not iron directly on any badges)
• Do not dry clean
• Maximum 50 industrial washes
• Inspect regularly for damage, tears, or contamination
• Replace immediately if protective properties may be compromised

Important Care Notes:

• Always remove heavy soiling and contamination before washing
• Flammable contaminants (oils, greases, solvents) reduce FR performance
• Do not apply fabric softeners – they can affect FR properties
• Store clean and dry in a protected location
• Keep away from direct sunlight when stored

Order Your Bizweld Work FR Coverall Today

Join the thousands of professional welders who have made the Portwest Bizweld their coverall of choice. With comprehensive multi-standard protection, 100% cotton comfort, and practical working features, the BZ523 delivers the performance and value that professional workers demand.

Available now at Hall-Fast – your trusted supplier of quality workwear, PPE, and industrial safety equipment since 1977.

Related Products You May Also Need

• Portwest Bizweld FR Jacket BZ739
• Portwest Bizweld FR Trousers BZ30
• Portwest Bizweld Iona FR Coverall BIZ5
• FR Welding Gauntlets
• Welding Helmets and Auto-Darkening Visors
• FR Head Protection (Balaclavas and Hoods)
• FR Safety Boots

Frequently Asked Questions

Why is the Bizweld coverall voted #1 in the welding industry? Professional welders consistently rate the Bizweld coverall highly for its combination of comprehensive protection, natural cotton comfort, practical features, and excellent value. The generous fit allows unrestricted movement, the ample pockets provide convenient storage, and the multi-standard certification delivers confidence in protection against real workplace hazards.

What's the difference between EN ISO 11611 Class 1 and Class 2? Class 1 is designed for less hazardous welding techniques with lower levels of spatter and radiant heat (such as TIG, light MIG, gas welding). Class 2 provides higher protection for techniques producing more spatter and heat (such as heavy MIG, MAG, arc gouging). For most general welding applications, Class 1 provides appropriate protection.

Can I use this coverall for arc flash protection? Yes, with an ATPV of 11.2 CAL/CM², this coverall provides certified arc flash protection. Always conduct a site-specific hazard assessment to ensure the garment's protection level matches your workplace requirements under NFPA 70E or equivalent standards.

How many washes will maintain the FR properties? The Bizweld fabric maintains its flame resistant properties through 50 industrial wash cycles when following the care instructions. The FR treatment is durable but can be affected by contamination with flammable substances or use of fabric softeners.

Is the coverall comfortable in hot conditions? Yes, the 100% cotton fabric provides natural breathability and moisture absorption, making it more comfortable in hot conditions than synthetic FR alternatives. However, like all FR PPE, it provides thermal protection by limiting heat transfer, which means some warmth retention is inherent to the protective function.

What sizes and leg lengths are available? The BZ523 is available in sizes S through 5XL, with Regular (31") and Long/Tall (33") leg length options to ensure proper fit across different body types.

Can the coverall be embroidered or printed? Contact Hall-Fast to discuss logo application options. Any modifications must not compromise the garment's protective properties, and work should only be performed by approved providers using FR-compatible materials.

Is this coverall suitable for ATEX zones? The BZ523 is not anti-static certified and is not suitable for ATEX-rated explosive atmosphere zones. For ATEX applications, consider the Portwest Bizflame range which includes anti-static properties.