COLD DEFENDER PU
EXCELLENT RESISTANCE TO HYDROCARBONS
is a special PU compound which guarantees higher performances than the ordinary PU for:
7 days
soaked in naphtha and gasoline and salt water
- MECHANICAL RESISTANCE TO LOW TEMPERATURES: particularly sturdy in dynamic conditions and under strong mechanical strains, typical of different work activities, under extreme temperatures up to –25°C;
COLD INSULATION
- THERMAL INSULATION: together with the footwear construction, guarantees successful tests for Cold Insulation with better results than -17°C required by the standard EN ISO 20345
its physical-mechanical properties remain unchanged
RESISTANCE TO HYDROCARBONS increase of volume MINIMUM REQUIREMENTS EN ISO 20344:2004
≤12%
0,5%
FOR A PROPER MAINTENANCE WASH THE BOOT AFTER USE
CHEMICAL CHART
ALCOHOLS
Amyl alcohol Benzyl alcohol Butyl alcohol Ethyl alcohol Methyl alcohol Octyl alcohol Propyl alcohol Diacetone alcohol Diethanolamine Glycerine Ethylene glycol Triethanolamine
PU-BOOTS
PC-2010-2-EN.indd 196
3 3 3 3 3 3 2 2 3
ALDEHYDES AND KETONES Acetaldehyde Acetone Benzaldehyde Butyraldehyde Chloracetone Formaldehyde Methyl ethyl Ketone
1 2 2 3 3 3 3 1 3 3 3 3
ORGANIC ESTERS Amyl acetate Butyl acetate Ethyl acetate Zinc acetate Dibutyl phtalate Ethyl formate Methyl acetate Propyl acetate Tricresyl phosphate
PU
Potassium dichromate Calcium hypochlorite Calcium chloride Copper chloride Ferric chloride Ammonium hydroxide Potassium hydroxide Sodium hydroxide Ammonium sulfate
Bromidric acid Hydrochloric acid conc. Hydrofluoric acid Phosphoric acid Nitric acid 10% Nitric acid conc. Perchloric acid Hydrogen sulphide Sulphuric acid 50% Sulphuric acid conc. Chlorine water
1 1 1 1 1 X 1 2 1 X 2
X X X X 1 3 1
X X 1 3 1 1 X X 3
ORGANIC ACIDS Acetic acid Boric acid Citric acid Carbolic acid Formic acid Malic acid Naphtenic acid Oleic acid Palmitic acid Stearic acid (158°F) Tannic acid
PU
PU
1 X 3 3 X 2 2 2 X 1 3 3 2 X 3 3 X
PU
Acrylonitrile Aniline Butter (158°F) Milk butter Chlorobenzene Chlorophenol Cresol Dibenzylether Dichlorobenzene Ethylether Sodium hypochlorite Milk Monoethanolamine Morpholine Hydrogen peroxide Soap Paint remover
INORGANIC ACIDS
PU
1 3 1 3 X 3 3 3 X X X 3 3 3 3 1 3 X 3 3 3 3 X 3 3 3 3 3 3 3 3 1 3 3 X 1 1 X
SALTS AND ALKALIES
PU
Turpentine ASTM 1 OIL ASTM 2 OIL ASTM 3 OIL Benzene Butane Kerosene (domestic) Cyclohexane Chloroform Benzyl Chloride Methylene Chloride Hexane Gas oil Grease (all kinds) Isoctane Methyl Chloride Oil mixture Nitrobenzene Animal oi Coconut oil Cod-liver oil Linseed oil Olive oil Pine oil Castor oil Cottonseed oil Silicone oil Lard oil (158°F) Hydraulic oi Mineral oil Vegetable oil Perchlorethylene Propane Beef tallow (158°F) Carbon tetrachloride Toluene Trychlorethylene Xilene
MIXTURES
PU
HYDROCARBONS (oils and solvents)
PU
Cofra boasts one of the most advanced laboratories in the safety world. Within its walls, continuous quality checks on materials are conducted and tests on all components are carried out, with particular attention to their features in terms of mechanics, hydrolysis and resistance to aggressive agents. The SAFEST Compound is the result of an indepth research and a specialized know-how and is able to satisfy any demand of work environments.
2 3 3 1 3 3 3 1 3 2 3
LEGEND EXCELLENT
3
GOOD
2
FAIR
1
NOT RECOMMENDED
X
196
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