Optibelt ZRP - 3 ZRM;ZRP Timing Belts; ZRM;ZRP Resistance to Chemicals

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The data given on the chemical resistance of the Optibelt ZRM/ZRP

timing belts refers to the material polyurethane and is based on

laboratory figures arrived at under ideal conditions.

Classification of chemical resistance

1. No impairment of physical properties and working life

2. Minor impairment of physical properties and working life

3. Clearly visible swelling/disintegration, reduced physical

properties and shortened working life

4. Rapid disintegration

Copper sulphate, aqueous solution 20 1

Methanol 20 4

Methanol/petrol mixture 15 : 85 20 4

Methylene chloride 20 3

Methylethylketone 20 4

Mineral oil 80 3

n-Heptane 20 1

n-Hexane 50 1

Naphtha 20 2

Sodium carbonate,

saturated aqueous solution 20 2

Sodium chloride,

saturated aqueous solution 20 2

Sodium hydroxide, 1-N aqueous solution 20 2

Sodium phosphate, aqueous solution 20 1

Sodium soap, 20% aqueous solution 80 4

Sodium soap fat 20 3

Oleic acid 20 1

Palmitic acid 20 1

Phosphoric acid,

20-70% aqueous solution 20 1

Phosphoric acid, 85% aqueous solution 20 3

Mercury 20 1

SAE-10 oil 70 1

Nitric acid, 20% aqueous solution 20 4

Hydrochloric acid, 20% aqueous solution 20 2

Hydrochloric acid, 37% aqueous solution 20 4

Grease 20 2

Sulphuric acid, 20% aqueous solution 20 4

Sulphuric acid, 5% aqueous solution 20 2

Sulphurous acid 20 4

Seawater 20 2

Soap solution, aqueous 20 1

Soya oil 20 1

Stearic acid 20 1

Tannic acid, 10% aqueous solution 20 1

Turpentine 20 4

Carbon tetrachloride 20 4

Tetrahydrofuran 20 4

Toluol 20 4

Trichlorethane 20 4

Tricresyl phosphate 20 2

Water 100 4

Water 90 3

Water 20 1

Hydrogen 20 1

Plasticising oils 20 2

Xylol 20 4

3.1 ZRM/ZRP resistance to chemicals

Resistance of endless

optibelt

ZRM/ZRP timing belts

Table 3.1: ZRM/ZRP chemical resistance

Aluminium chloride,

5% aqueous solution 20 2

Formic acid 20 4

Ammonia 10% aqueous solution 20 2

Aniline 20 4

ASTM oil No. 1 80 3

ASTM oil No. 2 80 3

ASTM oil No. 3 80 3

Acetone 20 4

Petrol, “normal” 20 3

Petrol, “super” 20 3

Benzol 20 4

Borax solution 20 1

Boric acid, aqueous solution 20 1

Butane 20 1

Butanol 20 2

Butyl acetate 20 4

Calcium chlorate (I),

5% aqueous solution 20 4

Calcium chloride, aqueous solution 20 1

Calcium hydrogen sulphide,

aqueous solution 20 1

Chlorine, gaseous 20 4

Chromic acid

10 : 50% aqueous solution 20 4

Cyclohexane 20 2

Cyclohexanol 20 1

Diesel fuel 20 2

Dimethyl formamide 20 4

Ferric (III) chloride, 5% aqueous solution 40 3

Acetic acid, 20% aqueous solution 20 3

Ethanol 20 3

Ethyl acetate 20 4

Ethyl ether 20 3

Formaldehyde, 37% aqueous solution 20 3

Freon-11 20 2

Freon-113 20 1

Freon-12 54 1

Freon-22 20 3

Glycerine 20 1

Hydraulic fluid 20 2

Iso-octane 70 1

Iso-propanol 20 3

Potassium hydroxide,

1-N aqueous solution 20 3

Kerosene 20 2

Carbon dioxide 20 1

Copper chloride, aqueous solution 20 1

Medium

Temperatur

(°C)

Beständig-

keit