Sentinel FR™ comprises an FR Polyurethane moisture/chemical barrier outer shell and a 100% FR cotton knit inner layer. It provides superior safety standards compliance and durability that often exceeds the life-cycle of comparable solutions. Sentinel FR™ provides unparalleled protection against arc flash, flash fire, chemical splash and steam hot liquids.
Sentinel FR™ excels as an FR/AR protective barrier due to its engineered combination of specialised multi-hazard protection, durable materials and enhanced user comfort. It is specifically designed to provide a high-performance, waterproof and flash fire and arc rated barrier for demanding environments such as electric, oil and gas and petrochemical industries.
APPLICATION: Gas and Electric Distribution and Transmission, Electrical Switching, Electrical Maintenance, Storm Restoration, Meter Servicing
Fabric: 100% FR Cotton Knit
Flame resistant Cotton is a specially treated fabric designed to offer protection in high-risk industrial environments, while maintaining the comfort of natural fibres. It works by forming a protective char barrier that self-extinguishes when the flame source is removed, ensuring it does not continue to burn, melt or drip. When exposed to heat, the flame retardant chemicals catalyse the fabric's dehydration and carbonisation process. This causes the fabric to form a stable, non-flammable char layer instead of burning or melting into a liquid. This char layer acts as a protective, low-permeable barrier that prevents oxygen reaching the fabric and stops heat from reaching the wearer's skin.
Key working principles of FR Cotton:
PRINCIPLE
ACTION
EFFECT
Charring
Converts cotton to carbon barrier
Insulates and stops fuel feed
Self-Extinguishing
Interrupts combustion chain
Fire/flame ceases when ignition source is removed
No-Melt
Remains solid under threat
Prevents molten debris burns
Breathability
Allows heat dissipation
Improves comfort/worker safety
Moisture Barrier: FR Polyurethane
FR Polyurethane moisture barriers are specialised materials designed to provide a durable, seamless waterproofing layer that simultaneously protects wearers from liquid penetration, moisture-driven degradation and flame and heat hazards. FR Polyurethane is often employed in industrial, construction and high-risk environments where the barrier must not only exclude water, oil or chemicals but also resist ignition, reduce flame spread and self-extinguish if exposed to open flames. FR Polyurethane works by incorporating additives or reactive agents that disrupt the combustion process at various stages, primarily through chemical inhibition and the formation of a protective insulating char layer. When exposed to heat, the material prevents ignition, reduces heat release rates and self-extinguishes.
ASTM F2733 Flash Fire - Body burn injury - 15.3% second degree, 7.10% 3rd degree. Body Burn, 3 second test exposure with 2 cal/cm2 heat flux.
ANSI 107/CSA Z96 High Visibility - ANSI 107 Class 3, Level 2 and CSA Z96.
Options - NASCO has the ability to create high quality corporate images using ink silk-screening, single and multi-colour heat transfers and reflective logos using 3M™ Scotchlite™ reflective material.
Waist Length Pant Features
SKU: 4501PFY - 4000 Series Fluorescent Yellow (FY) (non stock).
SKU: 4501PFO - 4000 Series Fluorescent Orange (FO) (non stock).
Snap fly front closure.
Elastic waist.
Velcro® tab type leg adjusters.
3M™ Scotchlite™ 9720 2" (50mm) reflective trim around knees and calves.
Electric arc, flash fire, chemical splash, steam and hot liquid protection. High visibility and waterproof.
Sizes: S to 5XL. Long sizes available - 2" added in the body and inseam length.
Pricing: S to XL same price, 2XL to 5XL individual pricing.
Bib Style Trouser Features
SKU: 4501TFY - 4000 Series Fluorescent Yellow (FY).
SKU: 4501TFO - 4000 Series Fluorescent Orange (FO).
Snap fly front closure.
Velcro® tab type leg adjusters.
3M™ Scotchlite™ 9720 2" (50mm) reflective trim around knees and calves.
Heavy duty FR black elastic suspenders with quick release buckles.
Electric arc, flash fire, chemical splash, steam and hot liquid protection. High visibility and waterproof.
Sizes: S to 5XL. Long sizes available - 2" added in the body and inseam length.
Pricing: S to XL same price, 2XL to 5XL individual pricing.
