Kosto Aluskin Molten Metal and Arc Flash Protective FR Pants
- Brand:Kosto
- Applications:Aluminum smelter, Maintenance, Welding
- Arc Flash Protection:ASTM F1506, ASTM F1959, NFPA 70E
- ATPV (cal/cm²):12
- Flame Resistant Protection:EN ISO 11611 Class 2
- Gender:Man

Kosto Aluskin Molten Metal and Arc Flash Protective FR Pants
- Brand:Kosto
- Applications:Aluminum smelter, Maintenance, Welding
- Arc Flash Protection:ASTM F1506, ASTM F1959, NFPA 70E
- ATPV (cal/cm²):12
- Flame Resistant Protection:EN ISO 11611 Class 2
- Gender:Man
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Description
The VPKA21 AluSkin pants are designed for industrial workers exposed to molten metal splashes, radiant heat, flames, and electric arc hazards. Built for aluminum smelters, foundry work, and welding operations, these flame-resistant pants combine thermal protection with everyday wearability. The lightweight AluSkin fabric blend allows for mobility during physically demanding tasks, while segmented reflective tape improves visibility in active work zones. Reinforced seams and durable construction make this garment suitable for harsh industrial environments where protection and comfort must work together.
Key Features
Molten Metal and Heat Resistance: Engineered to protect against molten splinters, flames, and radiant heat in high-temperature environments.
Comfort-Oriented Fit: Lightweight fabric with partial elastic waistband enhances comfort during extended wear.
Durable Reinforced Construction: Heavy Nomex®-resistant thread and reinforced seams at stress points improve longevity.
High-Visibility Segmented Tape: 2″ segmented FR reflective tape enhances visibility without restricting movement.
Functional Workwear Design: Slash side pockets, rear pocket with flap closure, and double-layer fly with YKK® zipper support daily usability.
System Compatibility: Designed to be worn with AluSkin shirts to create a coordinated protective outfit.
Intended Use
These flame-resistant work pants are used as lower-body protection in environments where exposure to heat, molten metal, and arc flash hazards is present. They are typically worn as part of a full FR clothing system during industrial operations requiring durability, mobility, and visibility.
Aluminum smelters and primary metal processing
Foundries and molten metal handling operations
Welding and hot work environments
Heavy industrial manufacturing
Electrical maintenance in high-heat zones
Industrial shutdowns and maintenance projects
Work areas requiring enhanced lower-body visibility
Product Specifications
Manufacturer code: VPKA21
Product type: Flame-resistant industrial work pants
Category: Protective clothing – lower body
Fabric composition: 54% FR viscose, 20% polyamide, 20% wool, 5% aramid, 1% antistatic
Fabric weight: 330 gsm (9.73 oz/yd²)
Reflective tape: 2″ FR segmented reflective tape
Thread type: Nomex®-resistant thread
Closure: Double-layer fly with YKK® zipper
Waist design: ½ elastic waistband at back
Pockets: Slash side pockets, back pocket with flap and button closure
Inseam: 31 in (78.7 cm)
Color: Dark industrial tone with reflective accents
Care instructions: Wash at 60°C, wash inside out, do not bleach, low-heat ironing, tumble dry allowed
Certifications and Standards:
NFPA 70E – Defines electrical safety requirements for arc flash protection in the workplace.
ASTM F1506 – Establishes performance criteria for flame-resistant textiles used in protective clothing.
ASTM F1959 – Determines arc rating performance (ATPV) for arc flash exposure.
ATPV 12 cal/cm² (Category 2) – Indicates protection level against electric arc energy exposure.
EN ISO 11612 – Evaluates resistance to heat, flame, and molten metal splash.
EN ISO 11611 (Class 2) – Provides protection for welding and related hot work processes.
EN 1149-5 – Confirms antistatic properties to reduce electrostatic discharge.
CSA Z96-22 (Class 1, Level 2) – Governs reflective tape placement for enhanced visibility.
Key Features
Molten Metal and Heat Resistance: Engineered to protect against molten splinters, flames, and radiant heat in high-temperature environments.
Comfort-Oriented Fit: Lightweight fabric with partial elastic waistband enhances comfort during extended wear.
Durable Reinforced Construction: Heavy Nomex®-resistant thread and reinforced seams at stress points improve longevity.
High-Visibility Segmented Tape: 2″ segmented FR reflective tape enhances visibility without restricting movement.
Functional Workwear Design: Slash side pockets, rear pocket with flap closure, and double-layer fly with YKK® zipper support daily usability.
System Compatibility: Designed to be worn with AluSkin shirts to create a coordinated protective outfit.
Intended Use
These flame-resistant work pants are used as lower-body protection in environments where exposure to heat, molten metal, and arc flash hazards is present. They are typically worn as part of a full FR clothing system during industrial operations requiring durability, mobility, and visibility.
Aluminum smelters and primary metal processing
Foundries and molten metal handling operations
Welding and hot work environments
Heavy industrial manufacturing
Electrical maintenance in high-heat zones
Industrial shutdowns and maintenance projects
Work areas requiring enhanced lower-body visibility
Product Specifications
Manufacturer code: VPKA21
Product type: Flame-resistant industrial work pants
Category: Protective clothing – lower body
Fabric composition: 54% FR viscose, 20% polyamide, 20% wool, 5% aramid, 1% antistatic
Fabric weight: 330 gsm (9.73 oz/yd²)
Reflective tape: 2″ FR segmented reflective tape
Thread type: Nomex®-resistant thread
Closure: Double-layer fly with YKK® zipper
Waist design: ½ elastic waistband at back
Pockets: Slash side pockets, back pocket with flap and button closure
Inseam: 31 in (78.7 cm)
Color: Dark industrial tone with reflective accents
Care instructions: Wash at 60°C, wash inside out, do not bleach, low-heat ironing, tumble dry allowed
Certifications and Standards:
NFPA 70E – Defines electrical safety requirements for arc flash protection in the workplace.
ASTM F1506 – Establishes performance criteria for flame-resistant textiles used in protective clothing.
ASTM F1959 – Determines arc rating performance (ATPV) for arc flash exposure.
ATPV 12 cal/cm² (Category 2) – Indicates protection level against electric arc energy exposure.
EN ISO 11612 – Evaluates resistance to heat, flame, and molten metal splash.
EN ISO 11611 (Class 2) – Provides protection for welding and related hot work processes.
EN 1149-5 – Confirms antistatic properties to reduce electrostatic discharge.
CSA Z96-22 (Class 1, Level 2) – Governs reflective tape placement for enhanced visibility.
Specifications
- BrandKosto
- ApplicationsAluminum smelter, Maintenance, Welding
- Arc Flash ProtectionASTM F1506, ASTM F1959, NFPA 70E
- ATPV (cal/cm²)12
- Flame Resistant ProtectionEN ISO 11611 Class 2
- GenderMan
- Hi-Vis ProtectionCSA Z96-22 Class 1, Level 2
- IndustryConstruction, Manufacturing, Mining, Oil and gas, Utilities
- Product Made InIndia
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