Slip Resistance
33% of workplace injuries in the oil and gas industry have been attributed to slips and falls. This number is rising as the number of jobs in hazardous, slick conditions increase.
Tread design and sole composition play a major role in determining the slip resistance of a boot. A great many environmental factors need to be considered when looking for slip resistance in footwear however. Working conditions, floor composition and chemical composition will all affect how footwear performs.
Surface Friction
The surface being worked on, and whether it is smooth, coarse, sharp or gritty all contribute and are mitigating factors in the slip resistance of a boot. Rough, sharp surfaces such as metal gratings require a harder soling material in order to withstand wear, however a degree of softness is necessary to grip the ground and provide adequate slip resistance.
Surface Moisture
Overly wet conditions on the surface will negatively impact slip resistance. Tread patterns with sharp points and high surface area may be designed to combat these specific circumstances.
Chemicals
Much like wet surfaces, oily or chemically compromised surfaces will lower the slip resistance of a material. Oil and acid resistant soling materials should be considered, as well as tread designs with high surface contact to maximize slip resistance.
Working Temperature
Working Temperature – Whether the surface is covered in ice, or is red hot, temperature will play a part in dictating the materials chosen for the outsole, and thus contribute to its slip resistance. Colder temperatures tend to cause materials to harden up, reducing its ability to grip the surface and lowering overall slip resistance. Special compounds and additives can be applied to soling materials to increase their operating temperature.