Toe
protection tested to 200 Joules impact and 15,000 Newtons compression
S1
Toe
protection tested to 200 Joules Impact and 15,000 Newtons compression
Antistatic
Energy absorbing heel
S2
Toe protection tested to 200 Joules
impact and 15,000 Newtons compression
Antistatic and Energy absorbing heel
Water resistant upper
S3
Toe
protection tested to 200 Joules impact and 15,000 Newtons compression
Antistatic
Energy absorbing heel
Water resistant upper
Penetration resistant sole
S4
Toe
protection tested to 200 Joules impact and 15,000 Newtons compression
Antistatic and Energy
absorbing heel
Waterproof polymer upper
S5
Toe
protection tested to 200 Joules impact and 15,000 Newtons compression
Antistatic
Energy absorbing heel
Waterproof polymer upper
Penetration resistant sole
HRO
Resistance to
high heat 300ºc
P
Penetration
resistance 1100 Newtons
WR
Water
resistant
SRA
Tested on
ceramic wetted tile contamination with a diluted soap solution.
SRB
Tested on
smooth steel contamination with glycerol.
SRC
Passes SRA
& SRB tests
Sole Materials
PU Polyurethane, is a synthetic material: Flexible and lightweight Resistant to 130°C heat, oil
and low concentration acids/alkalis and solvents
N Nitrile
rubber, is a synthetic rubber copolymer of acrylonitrile and butadiene: More resistant than natural
rubber to oils and acids, not as strong or flexibility Better puncture-resistance
than natural rubber
R Rubber, (vulcanised caoutchouc) produced
from the latex sap: Resistant to 200°C (300 if HRO)
heat, oil, low concentration acids/alkalis and solvents
VR Vulcanised
Rubber, Vulcanization chemically combines the rubber and sulfur.
PVC PVC , is a water
resistant polymer:
Resistant to minerals, oil and fats. Resistant to 90°C heat,
oil and low concentrations acids/alkalis and solvents.
PVN PVC/Nitrile,
PVC combined with Nitrile to produce a harder wearing sole:
Resistant to 100°C
heat, oil and low concentration acids/alkalis and solvents
PH Phylon, compressed
ethylene vinyl acetate, expanded using heat and cooled in a mould.
Light and
flexible with good cushioning.
RPH Rubber/Phylon combined, usually with
rubber in the midsole for flexible and resilient cushioning.
Uppers
Leather:
A processed natural product. Has
durability, elasticity and ability to keep its shape. Holds heat and resists
moisture.
Nubuck
(not to be confused with suede) Nubuck
is a top-grain rawhide leather with good strength, thickness and resistance to
wear. Nubuck is fine leather that has been sanded on the grain side. Fine
calfskin and cowhides are normally used in the manufacture Nubuck remains
water-resistant for a long time, is extremely supportive.
