Special properties polyurethane prepolymer Hydrolysis resistance and low temperature resistant

  • Brand:

    sinograce
  • Item NO. :

    HRL-1021,HRL-1022,HR
  • Payment:

    L/C、D/A、D/P、T/T、MoneyGram、Paypal Other.
  • Product Origin:

    China Anhui
  • Color:

    viscous liquid
  • Shipping Port:

    Shanghai And Other Ports
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Product Detail

Description

Hydrolysis resistance and low temperature resistant


Key features

The material has good hydrolysis resistance and low temperature resistance.


Typical properties 

Hydrolysis resistance and low Temperature Resistant

HRL-

1021

HRL-1022

HRL-1023

Prepolymer

Appearance (25℃)

viscous liquid

Waxy solid

Waxy solid

NCO Content(%)

5.0~5.5

4.5~5.0

4.5~5.5

Using Mixture Ratio (PHR)

14.4~16.0

13.0~14.5

13.2~15.8

Life in the Reaction Kettle (75~78℃/min)

3~5

8~10

5~6

Physical Properties of Finished Products

Hardness      (Shore A)

90±5

90±5

90±5

Tensile Strength (MPa)

34.7

48.2

68.3

Tearing Strength (kN/m)

38.5

112.0

133.1

Elongation at Break (%)

320

380

431

Available Using Environment(℃)

-35

-70

-70


Application

-Mainly used in the production of water pump parts, marine coating, pipe fittings and other polyurethane products.


Usage method

-Can be used for manual, but also suitable for the operation of pouring machine, chain extender is MOCA or other chain extender.


Attention

prepolymer storage should be placed in a low temperature drying place, at higher temperatures (more than 75 degrees Celsius) should not be heated for more than 3 hours.

After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.

The storage period of unopened prepolymer is three months.

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      Special properties polyurethane prepolymer Hydrolysis resistance and low temperature resistant
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