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Products >> Millathane
Millable Polyurethane Rubbers


TSE Industries Inc. is the world's largest manufacturer of millable polyurethane rubbers under the brand name of Millathane. These rubbers possess a combination of physical and mechanical properties not found in any other rubber and make a significant to the high performance rubber market.

Peroxide curing grades have very good compression set. Sulfur curable grades have excellent mechanical properties and are used mainly in industrial parts, roller coverings and suction cups especially in lower hardness down to 30 shoreA.

Polyester grades feature excellent resistance to oil and high temperatures. They are also better in sliding abrasion due to their high resilience.

Millable polyurethane rubbers are used in many industrial markets such as business machines, railways, automotie, aeorsapce, textile, footwear, etc. Typical high performance applications include foller coverings, belts, o-rings, gaskets, diaphragms, seals, vibration isolators, bunpers, impellers, hose tubes and covers and shoe soles.

 
SELECTION CHART MILLATHANE
CM E-34 97 76 5004 66
Type of Millable Polyurethane Rubber POLYETHER POLYESTER
PHYSICAL PROPERTIES
Tensile Strenght ++ ++ + ++ ++ +
Rebound resilence ++ + ++ o + ++
Elongation at break + + + ++ + +
Abrasion resistance ++ + + + + +
Tear Resistance ++ + o ++ o o
Mechanical properties at hardness + + o + + +
Mechanical properties at low hardness + o o ++ o o
Compression set + + o o + ++
Heat resistance o o o o + ++
Low temperature performance ++ + o + + ++
Impermeability to gases + + + + ++ +
Crystal clear colorless vulcanizates - - ++ - o o
Resistance to hydrolysis ++ ++ ++ o/+ o/+ o/+
Oil resistance + + + ++ ++ ++
Resistance to diesel fuels + o o ++ ++ ++
PROCESSING PROPERTIES
Preparing high hardness compounds + + + + ++ +
Preparing low hardness compounds ++ + o ++ o o
Compression molding ++ ++ ++ ++ ++ ++
Transfer molding ++ ++ ++ ++ ++ ++
Injection molding + + ++ + ++ ++
Extrusion + + ++ + ++ ++
Steam vulcanization ++ ++ ++ - - -
Hot air vulcanization ++ ++ ++ ++ o o
LEGEND:     ++ Excellent     + Good     o Poor     - NA
 
PROPERTIES OF MILLABLE POLYURETHANES
 
Abrasion Resistance
Polyurethane rubber provides the highest abrasion resistance of any rubber, synthetic or natural.
 
Excellent Oil, Fuel and Solvent Resistance
Polyurethanes have comparable oil & solvent resistance to medium nitrile rubber and better fuel resistance.
 
Very High Tensile Strength and tear Strength
Values exceeding 34.5 MPa (5000 psi) tensile strength and 70 kN/m (400 lb/in) tear strength are obtainable.
 
High Ozone and Oxygen Resistance
The saturated backbone of the urethane polymer does not permit attach by ozone or oxygen
 
Excellent Resistance to Compression Set
Preoxide cured polyurethanes have excellent set resistance.
 
Conventional Compounding and Preocessing
Polurethane rubbers can be processed on conventional rubber equipment & cured by extrusion, injection, transfer or compression molding. Filers, plasticizers, vulcanizing agents and other ingredients are used to develop optimum properties for a given application.
 
Excellent low Temperature Properties
Polurethane rubber has very low brittle point, -68 degree C.
 
Standard Cure Products
Polyrethane rubber compounds can be press cured, or steam cured with certain precautions, using standard peroxide and sulfur cure systems.
 
Dynamic Properties
Polurethanes offer a broad spectrum of resiliency, from low resilience compounds for good damping and vibration resistance, to high resiliance compounds.
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