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Dynacast Industrial Products Natural Rubber - NR

Dynacast Industrial Products Natural Rubber - NR is a general purpose rubber with the optimum balance of physical properties essential for high performance engineering applications. It has a long fatigue life and high strength even without reinforcing fillers and is the first choice for spring applications. It can be compounded to give a wide range of hardness. Good low temperature flexibility, excellent elasticity with strong ensile and good elongation. Its chief disadvantage is its poor oil resistance and its lack of resistance to oxygen and ozone, although these latter disadvantages can be ameliorated by chemical protection.

Polymer Name: Polyisoprene (IR)

End Uses: Belts & Belt Repair, Conveyor Parts

Features: Electrical Resistance, Excellent Elasticity, Good Abrasion Resistance, Good Color Stability, Good Elongation, High Strength, Improves Physical Properties, Low Temperature Flexibility, Tacky, Tear Resistance, Water Resistant

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Natural Rubbers,

Polyisoprenes

Polymer Name

Polyisoprene (IR)

Technologies

Elastomers

Product Families

Elastomers — Thermoset Elastomers

Isoprene Rubbers (IR)

Features & Benefits

Materials Features

Electrical Resistance,

Excellent Elasticity,

Good Abrasion Resistance,

Good Color Stability,

Good Elongation,

High Strength,

Improves Physical Properties,

Low Temperature Flexibility,

Tacky,

Tear Resistance,

Water Resistant

Applications & Uses

Markets

Automotive & Transportation,

Industrial

Applications

Automotive & Transportation — Automotive

Tires

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts,

Other Industrial Applications

Plastics & Elastomers End Uses

Belts & Belt Repair,

Conveyor Parts

Applications & Uses

The outstanding strength of natural rubber has maintained its position as the preferred material in many engineering applications. Other than for thin sections it can be used to approximately 100C, and sometimes above. It can maintain flexibility down to -60C if compounded for the purpose. It has good creep and stress relaxation resistance and is low cost.

Uses

General uses: Industrial products, rubber tubes, rubber belts.

Technical Details & Test Data

Material Properties
Hardness Range 30-90
Temp. Range C° -40 / 90
Strength Properties Excellent
Compression Set Excellent
Abrasion Resistance Excellent
Tear Resistance Excellent
Weather Resistance Poor
Ozone Resistance Unacceptable
Water Resistance Excellent
Mineral Oil Resistance Unacceptable
Vegetable Oil Resistance Poor
Gas Barrier Properties Poor
Electrical Properties Good
Flame Resistance Unacceptable
Acid Resistance Suitable
Tackiness Excellent
Color Stability Good