Portwest PW3 Modaflame Knit FR Long Sleeve Polo Shirt

The Portwest FR733 PW3 Modaflame Knit FR Long Sleeve Polo Shirt delivers premium flame resistant protection with a professional, smart appearance ideal for customer-facing roles and corporate environments. Constructed from an inherently fire resistant yarn of 60% Modacrylic, 39% Cotton and 1% Carbon Fibre, this innovative polo shirt provides permanent protection that will never wash out or diminish over time.

The Modaflame Knit technology uses high performance fibres blended without any chemical treatment, giving the fabric its unparalleled soft, natural touch and appearance. This makes the FR733 exceptionally comfortable for all-day wear while maintaining critical safety performance in hazardous work environments. The high cotton content ensures breathability and comfort against the skin.

Featuring a stylish 3-button placket design with concealed button closure, ribbed collar and cuffs, this FR polo shirt offers a smart, professional look without compromising on safety. Heat applied segmented reflective tape provides enhanced visibility in low-light conditions, making it suitable for a wide range of industrial applications.

The inherent flame resistant qualities will not diminish with washing, making the FR733 a cost-effective investment in long-term worker protection. This garment offers protection against radiant, convective and contact heat while remaining lightweight and breathable for comfortable wear throughout the working day.

Key Features & Benefits

Inherent Flame Resistance

• Inherent flame resistant qualities will not diminish with washing
• Modacrylic fibres are difficult to ignite and do not combust – material will self-extinguish
• Permanent FR protection for the life of the garment
• No chemical treatments that can wear off or wash out

Arc Flash Protection

• IEC 61482-2 IEC 61482-1-1 certified (Elim 4.4 CAL/CM², EBT 5.5 CAL/CM²)
• ASTM F1959/F1959M-12 rated (EBT = 4.3 CAL/CM², HAF = 66%)
• APC Class 1 arc protection rating
• Suitable for electrical work environments

Anti-Static Properties

• 1% Carbon Fibre content provides inherent anti-static protection
• Suitable to be worn in an ATEX environment
• Prevents static discharge in explosive atmospheres
• EN 1149-5 certified

Professional Appearance

• 3-button placket with concealed button closure
• Ribbed collar and cuffs for a smart finish
• Designed with a comfort fit
• Ideal for customer-facing and corporate environments

Enhanced Visibility

• Heat applied segmented reflective tape for added visibility
• EN 17353 Type B3 enhanced visibility certification
• Ideal for low-light working conditions

Superior Comfort

• High cotton content for superior comfort
• Lightweight and breathable fabric
• Loop at placket ideal for attaching glasses/pens
• Designed for all-day wear

UV Protection

• 40+ UPF rated fabric to block 98% of UV rays
• Protects against harmful sun exposure during outdoor work

Technical Specifications

Safety Standards & Certifications

The Portwest FR733 is certified to multiple international safety standards:

• EN 1149-5 – Anti-Static Properties
• IEC 61482-2 – Arc Flash Protection
• IEC 61482-1-1 – Arc Rating (Elim 4.4 CAL/CM², EBT 5.5 CAL/CM²)
• IEC 61482-1-2 – APC Class 1
• EN 17353 Type B3 – Enhanced Visibility
• ASTM F1959/F1959M-12 – Arc Thermal Performance (EBT = 4.3 CAL/CM², HAF = 66%)
• CE-CAT III – Complex Design PPE
• UKCA Marked – UK Conformity Assessed

Ideal Applications & Industries

The Portwest PW3 Modaflame Knit FR733 Long Sleeve Polo Shirt is specifically designed for professionals working in:

• Electrical Utilities – Power generation, transmission, and distribution work
• Oil & Gas – Refineries, petrochemical plants, and offshore platforms
• Manufacturing – Metal fabrication, foundries, and industrial processing
• Welding & Hot Works – Professional appearance with FR protection
• Rail Industry – Track maintenance and infrastructure work
• Mining & Quarrying – Underground and surface operations
• Chemical Processing – Plants handling flammable substances
• ATEX Environments – Explosive atmosphere zones
• Corporate & Supervisory Roles – Smart appearance with full FR compliance

Layering System

The FR733 is designed as a versatile mid-layer or standalone garment in a complete FR protection system:

• Wear as standalone FR polo in warmer conditions
• Layer under FR jackets and coveralls for enhanced protection
• Combine with FR fleece or sweatshirts in cold weather
• Ideal over FR base layer t-shirts (FR732) for additional warmth

The comfort fit design allows for easy layering without restricting movement, while the inherent FR properties ensure protection is maintained throughout the garment system.

Care Instructions

To maintain optimal performance and longevity:

• Machine wash at 40°C using non-biological detergent
• Do not use fabric softeners or bleach
• Do not tumble dry – drip line dry recommended
• Iron on medium temperature (max 150°C) if required
• Do not dry clean
• Inherent FR properties are permanent and will not wash out

Why Choose Portwest Modaflame Knit FR733?

Portwest has manufactured protective workwear since 1904, and the Modaflame Knit range represents the cutting edge of FR polo shirt technology. The Modaflame Knit range is strong, durable and highly innovative, tested to meet and surpass required EN and US standards.

When you choose the FR733, you're investing in:

• Permanent Protection – Inherent FR properties that never wash out or fade
• Professional Appearance – Smart polo design suitable for customer-facing roles
• All-Day Comfort – High cotton content for breathability and softness
• Multi-Hazard Safety – Arc flash, flame, and anti-static protection in one garment
• Long-Term Value – Durable construction that maintains protection throughout the garment's life
• ATEX Suitability – Certified for use in explosive atmosphere environments
• Versatile Wear – Ideal standalone or as part of layered FR system

Companion Products

For complete FR protection, pair the FR733 polo shirt with:

• FR732 PW3 Modaflame Knit FR Long Sleeve T-Shirt – Ideal base layer
• FR738 Modaflame Knit FR Full Zip Sweatshirt – Mid-layer warmth
• FR434 Bizflame Rain+ FR Winter Trousers – Lower body protection
• FR617 Bizflame Rain+ FR Winter Jacket – Outer layer protection

FAQ Schema Content

Q: Will the flame resistance wash out over time? A: No. The inherent flame resistant qualities will not diminish with washing. The Modaflame Knit fabric uses inherently FR fibres, not chemical treatments, so the protection is permanent for the life of the garment.

Q: What is the arc rating of the FR733? A: The FR733 is rated to IEC 61482-1-1 (Elim 4.4 CAL/CM², EBT 5.5 CAL/CM²) and APC Class 1, providing protection against electric arc flash hazards.

Q: Can this polo shirt be worn in ATEX zones? A: Yes, the FR733 is suitable to be worn in an ATEX environment thanks to its inherent anti-static properties from the 1% Carbon Fibre content.

Q: Is the FR733 suitable for customer-facing roles? A: Yes, the FR733 features a smart 3-button placket design with ribbed collar and cuffs, making it ideal for supervisory, corporate and customer-facing roles that require FR protection.

Q: What sizes are available? A: The FR733 is available in sizes S through XXXL to accommodate a wide range of body types.

Q: Can I layer other FR garments with this polo shirt? A: Yes, the FR733 works excellently as a standalone garment or as part of a layered FR system. Wear over the FR732 base layer t-shirt or under FR jackets and coveralls for enhanced protection.

Q: Does this polo shirt provide UV protection? A: Yes, the fabric is 40+ UPF rated to block 98% of UV rays, providing excellent sun protection for outdoor work.

Q: How does the FR733 polo differ from the FR732 t-shirt? A: The FR733 polo shirt features a 3-button placket with concealed closure, ribbed collar and cuffs for a smarter, more professional appearance. It's ideal for customer-facing roles where a more formal look is required while maintaining the same FR protection levels.