When operating in severe environments one of the major properties of footwear is its high sliding resistance.
The ability of footwear not to slide on icy, flooded, muddy, oily, sandy, oil-covered and other surfaces depends on:
- sole material;
- sole and protector design (suitable press form design is also important);
- special tools.
Soles made of nitrile are the least exposed to sliding. This material has high sliding resistance on slippery and contaminated surfaces. Two-layer soles made of double-density material (PU/PU, PU/nitrile, PU/TPU) have good sliding resistance prorerties.
Jointly with colleagues from Italy and Germany the Vostok-Service engineering experts developed a sole protector sensitive to operation under the risk of slidding:
- multidirectional protector edges;
- protector depth is — over 4 mm;
- grooves width is — at least 3 mm;
- protector pattern is designed at different angles;
- special ribbed surface increases traction.
During operation the dirt is removed continuously from this type of self-cleaning protector grooves.
To move and work on icy surfaces, the footwear is completed with special spikes mounted directly to a sole, or with slip-proof tips.