AlphaTec™ Breathable Polyester Chemical Bib Overall 66-642

   Comfortable & Durable Chemical Protection P.P.E.

Made in Canada

**Sizes S - 7XL are made to order-please allow extra time when ordering

Ansell® AlphaTec® Breathable Polyester Bib Overalls | Style 66-642

Premium Lower-Body Splash Defenses Engineered to Counter Heat Stress

The Ansell® AlphaTec® Breathable Polyester Bib Overalls (Style 66-642) represent a major breakthrough in protective industrial workwear, combining severe liquid chemical splash protection with advanced thermal comfort. In demanding workspaces like oil refineries, commercial chemical plants, and high-pressure facility washdown bays, outfitting workers in standard non-porous rubber or heavy PVC pants is a common source of physical fatigue. These traditional materials trap body heat and sweat inside the garment, causing rapid thermal spikes, skin irritation, and dangerous heat exhaustion during active shifts.

The AlphaTec® 66-642 overalls eliminate this hazard by using a premium laminated fabric system with a built-in breathable membrane. This specialized matrix allows moisture vapor and internal heat to escape smoothly into the air while maintaining an absolute, impervious barrier against hazardous fluids, ensuring operators stay cool, dry, and compliant.

Rugged, Leak-Tight Structural Build for Demanding Yards

Every inch of the AlphaTec® 66-642 bib overalls is engineered for maximum durability and reliable field performance. The garment is manufactured using a tough 237gsm laminated polyester textile that delivers exceptional resistance against punctures, snags, and heavy surface abrasions. To stop liquids from bypassing vulnerable stitching points, the overalls feature fully stitched and taped seams.

The high-backed bib profile provides extended coverage across the torso and lower back, while adjustable ankle cuffs let workers create a tight, secure seal around industrial work boots. This prevents liquid chemical splashes, oil runoff, and wind-driven rain from entering the garment.

Sustainable, Cost-Reducing Reusability

Unlike low-grade or disposable chemical suits that quickly swell facility waste piles and inflate procurement costs, the AlphaTec® 66-642 overalls are fully reusable and machine washable. The high-tensile polyester weave is designed to withstand repeated commercial laundering cycles without losing its specialized fluid repellency or structural strength. This extended product lifespan lowers the total cost per wear, providing excellent long-term value for corporate safety budgets.

Key Features & Product Benefits

• Advanced Breathable Membrane: Minimizes heat stress risks by venting body heat and sweat vapor while providing an exterior liquid-tight shield.

• Leak-Tight Stitched & Taped Seams: Reinforced with premium taped stitching to block pressurized chemical sprays and low-pressure line runoff.

• Rugged 237gsm Polyester Fabric: Built to endure heavy physical wear, mechanical friction, and abrasive conditions without tearing.

• Extended Torso Protection: High-backed bib design shields the midsection and lower back from low-angle splashes or pooling fluids.

• Heavy-Duty Adjustable Suspenders: Features elastic straps equipped with secure, quick-release buckles for a custom, comfortable fit.

• Certified Viral & Pathogen Barrier: Tested and certified to ASTM F1671 standards for verified resistance against bloodborne pathogens and viral penetration.

Product Specifications & Standards

• Manufacturer Style: 66-642 (Style Number 66642)

• Brand Family: Ansell® AlphaTec®

• Material Composition: Laminated Polyester fabric system with breathable membrane

• Fabric Weight: 237 gsm

• Seam Construction: Stitched and Taped

• Color Profile: Red

• Adjustment Features: Quick-release buckle suspenders; adjustable ankle cuffs

• Shelf Life: 5 Years

• Country of Origin: Canada

• Available Sizes: S, M, L, XL, 2XL, 3XL, 4XL, 5XL,6XL,7XL

• Compliance Certifications:

  • ASTM F1671: Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Blood-Borne Pathogens

  • EN 1149-5: Electrostatic properties (protective clothing with anti-static characteristics)

Recommended Industry Applications

• Petrochemical & Oil Refining: Providing reliable, weather-resistant protection for offshore rig mechanics and terminal workers exposed to volatile liquids.

• Chemical Blending & Loading: Shielding line operators from low-angle valve leaks, tank drainage splatters, and material transfer hazards.

• Industrial Facility Washdowns: Keeping sanitation teams dry and protected against high-pressure chemical washdowns and pooling water runoff.

• Municipal Utilities & Water Processing: Outfitting main maintenance crews working around high-pressure greywater lines or chemical treatment injection zones.

• Heavy Machinery Maintenance: Ideal for operations involving heavy grease cleanings, acid-dipping tanks, or caustic chemical rinses.

Manf: Ansell® #66-642  Replacement of Product : Ansell® #66-662

Packed: 1 each

Click for Chemical Test Data