Hardness 85

Product Detail

1. Description

This is an MDI-terminated PTMG prepolymer of low viscosity and easy processing. It enjoys a high performance and high abrasion resistance.

 

2. Application

It applies to make PU rods, castor wheels, PU pad, PU sheet, rubber roller, sieve plate, etc.

 

3. Product Specification

NCO Content (%)6.0±0.2
Density (25℃)/(g/cm3)1.11
Viscosity at 85℃ (Mpa.s)1400
Appearance at 25℃White solid


4. Operation introduction

Ratio (Prepolymer/1,4BDO)100/6.1
Mix temperature/℃ (Prepolymer/1,4BDO)80/40
Gel time/min10
Postcure (110℃)/h48


5. Physical Properties

Hardness/ shore A85±2
Tensile Strength/ Mpa44
100% Modulus/MPa6
300% Modulus/MPa17
Elongation at break/%472
Tear strength (without nick) / kN/m75
Tear strength (with nick) / kN/m19
Rebound/%61
DIN Abrasion(mm3)36


6. Shelf life

The storage time of original packing is 6 months at the above condition from the date of production.


7. Package

20kg or 200kg per steel drum

 

8. Safety

Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.


If Contact Occurs:

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Seek medical attention if allergic reactions occur.

Eyes: Immediately flush with water for at least 15 minutes, contact a physician.

Ingestion: If swallowed, contact a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by medical personnel. Never give anything by mouth to an unconscious person.


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