Hand Protection 101: Understanding Glove Materials, Cut Ratings, and Electrical Classes
A worker’s hands are their most valuable tools, yet hand injuries remain one of the most common—and preventable—incidents on Canadian job sites. The challenge for safety managers isn't a lack of options; it’s that there are too many options.
Grabbing a generic leather work glove might prevent a blister, but it won't stop a razor-sharp piece of sheet metal or an arc flash. To outfit your crew correctly, you need to understand exactly what materials and safety ratings align with their specific hazards. Here is your complete guide to selecting the right work gloves.
1. The Foundation: Core Materials and Coatings
The base material of a glove dictates its comfort, dexterity, and primary defenses. Many modern work gloves combine a knit shell with a specialized coating to offer the best of both worlds.
Leather: The traditional heavyweight. Leather (cowhide, pigskin, or goatskin) offers excellent abrasion resistance, durability, and natural heat resistance. It is ideal for heavy construction, welding, and rigging.
Knit Synthetics (HPPE, Kevlar, Dyneema): High-Performance Polyethylene (HPPE) and aramid fibers like Kevlar are the backbone of cut-resistant gloves. They are incredibly strong yet thin enough to allow for high dexterity.
Nitrile Coating: A synthetic rubber coating applied to the palms and fingers of knit gloves. Nitrile provides an outstanding grip, resists punctures, and stands up well to oils and harsh chemicals without breaking down.
Polyurethane (PU) Coating: The best choice for extreme dexterity. PU coatings are very thin and breathable, making them perfect for precise tasks like electronics assembly or handling small screws, though they offer less grip in oily conditions than nitrile.
2. Decoding Cut Protection (ANSI / ISEA 105)
When dealing with sharp edges—from glass handling to HVAC sheet metal work—you need verified cut protection. In North America, the ANSI/ISEA 105 standard is the benchmark. It measures exactly how much weight (in grams) it takes for a razor blade to cut through the glove material.
The rating system runs from A1 to A9:
ANSI Cut Level Grams to Cut Best Application
A1 - A2 200g - 999g Light duty: Material handling, packaging, warehouse work.
A3 - A4 1000g - 2199g Medium duty: General construction, light glass handling, drywall.
A5 - A6 2200g - 3999g Heavy duty: Metal fabrication, automotive assembly, HVAC.
A7 - A9 4000g - 6000g+ Extreme duty: Heavy metal stamping, meat processing, sharp glass manufacturing.
Buyer's Tip: Don't just buy A9 gloves for everyone. The higher the cut rating, the thicker and less flexible the glove becomes. Over-protecting a worker can lead to hand fatigue and cause them to take the gloves off entirely to perform detailed tasks.
3. Electrical Insulation and Arc Flash Ratings
For electricians and utility workers, gloves are literally a lifeline. Hand protection in this sector is divided into two entirely separate hazards: electrical shock and arc flash. A glove rated for one does not automatically protect against the other.
Electrical Insulating Gloves (ASTM D120)
To prevent lethal electric shock, workers must wear specialized rubber insulating gloves. Because rubber is fragile and easily punctured by a stray wire, these must always be worn underneath a leather protector glove.
They are strictly categorized by the maximum voltage they can safely handle:
Class 00: Up to 500 Volts AC
Class 0: Up to 1,000 Volts AC
Class 1: Up to 7,500 Volts AC
Class 2: Up to 17,000 Volts AC
Note: Rubber insulating gloves must be electrically tested by a certified lab every 6 months to remain compliant. We can get your gloves through the testing if needed as well.
Arc Flash Gloves (NFPA 70E / CSA Z462)
An arc flash is an explosive release of energy caused by an electrical fault. It creates blinding light and temperatures hotter than the surface of the sun.
Arc flash gloves are designed specifically to resist catching fire and to insulate the hands from extreme radiant heat. They are measured by their Arc Rating (ATPV or EBT) in cal/cm². The higher the calorie rating, the more thermal energy the glove can block. If your crew is working on energized panels, their gloves must meet or exceed the calculated incident energy of that specific equipment.
Equip Your Hands for the Hazard
Whether you need high-dexterity PU-coated gloves for finishing work, Level A6 cut resistance for the fabrication shop, or certified dielectric rubber for your electrical crew or easy to use disposable nitrile gloves, we have you covered. We carry a massive selection of gloves and can get you many types of every version at fantastic pricing - contact us for bulk site outfitting.
