ArcWear™ Sentinel™ 4500 Series Protective Outerwear Data

  Made in USA


Specific Material Data

Outer Shell FR Polyurethane Moisture / Chemical Barrier
Inner Layer 100% FR Cotton Knit
Finished Fabric Weight 339gsm / 10.0oz
Seam Construction Dielectrically Welded with Safety Stitch
Colours Fluorescent Lime Yellow (FLY), Fluorescent Orange (FO)
Reflective Trim 3M™ 9720 Scotchlite™ Reflective Material
Electric Arc ASTM F1891 Fluorescent Lime Yellow ATPV 14.0 cal/cm2 | HAF 87% | Ebt 28 cal/cm2
  Fluorescent Orange ATPV 16.0 cal/cm2 | HAF 88% | Ebt 32 cal/cm2
NFPA 70E Fluorescent Lime Yellow PPE CAT 2 | Fluorescent Orange PPE CAT 2
Flash Fire ASTM F 2733 22.04% Total body burn 3 second test exposure with 2 cal/cm2 per second heat flux
High Visibility ANSI 107 Fluorescent Lime Yellow and Fluorescent Orange 4500 Series are ANSI 107 Class 3 Level 2 compliant
Chemical Resistance ASTM F903 Resistant to oils, hydrocarbons, salts and most alcohols











Electric Arc Resistance






ASTM F1891 Standard Specification for Arc and Flame Resistant Rainwear


This specification establishes applicable test methods, minimum physical and thermal performance requirements, suggested sizing and recommended purchasing information for rainwear for use by workers who may be exposed to the thermal hazards of momentary electric arcs and open flames. The objective of this specification is to prescribe fit, function and performance criteria for rainwear that meets a minimum level of thermal and physical performance when exposed to a laboratory-simulated electric arc or flame exposure.

Key Definitions

Performance Requirements

Flash Fire Resistance






NFPA 2112 Standard on Flame Resistant Garments for Protection of Industrial Personnel Against Flash Fire, and

ASTM F2733 Standard Specification for Flame Resistant Rainwear for Protection Against Flame Hazards


This specification establishes test methods, minimum physical and thermal performance criteria, a suggested sizing guide and suggested purchasing information for rainwear for use by workers who are potentially exposed to industrial hydrocarbon fires or other petrochemical fire hazards.

Performance Requirements

Requirements must be met initially as manufactured as well as after five cleanings.

Tear Resistance

Material must have a trapezoidal resistance of 6 lbs (2.72 kg) in the warp direction and 6 lbs (2.72 kg) in the fill direction.

Markings and Reflective Materials

These material attached to the rainwear must be permanent and must not degrade the performance of the rainwear.

Flame Resistance

Rainwear material must be flame resistant and must not melt and drip when tested in accordance with ASTM D6413 and must exhibit no more than a 2 second afterflame time and less than 6 inch char length.

Thermal Protection

Rainwear must be tested in accordance with ASTM F1930, a design test, after 1 washing and 1 drying. Testing parameters are set at a heat flux of 84 ± 2kW/m2 (2.0 ± 0.05 cal/cm2) and an exposure time of 3 ± 0.1 seconds. The following information is determined:

Rainwear Construction

Must utilise materials, stitching, tapes, coatings, fasteners and closure materials that minimise heat conduction for the construction of compliant FR rainwear. Fasteners and closures used, for example, zippers, snaps, buttons etc. that are made from metal, must be covered with a layer of rainwear material on the inside of the garment such that these items of construction will not contact undergarments or the skin.

Labeling Requirements

Leak Resistance

ASTM F1891

Material must withstand water pressure of 30 psig without leaking. The seams of the rainwear must not exhibit any evidence of leakage when exposed to water at 3 psig for two (2) minutes.