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Machine Casting Polyurethane Cast Elastomer, Elastomer Casting Machine for Polyurethane ...

Machine Casting Polyurethane Cast Elastomer, Elastomer Casting Machine for Polyurethane ...

They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.

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Product Introduction

We always put the service to users in a prominent position and are committed to become a globally competitive supplier of Casting Polyurethane Elastomer, PU Color Sheet, PU Elastomer Finished Product sales and services. Our company pays attention to innovation, focuses on selling high-quality and safe products, steadily improves production capacity and provides high-quality product services for the groups in need. Our group members are goal to provides merchandise with significant performance cost ratio to our consumers, as well as target for all of us is usually to satisfy our consumers from all around the environment. By offering a wide range of high-quality products at competitive prices, we provide customers with significant advantages in the market. We see ourselves not just as a supplier for our clients, but as their partner in helping them achieved their own goals and objectives.

PTMEG based Casting Polyurethane prepolymer

1. PTMEG based polyurethane prepolymer is the higher level of Polyether prepolymer, they are recommended for applications where parts undergo dynamic stress, etc, they incur lower heat build-up. They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.

2. Specifications,Application and operation details.


PTMEG/TDI system Casting Polyurethane prepolymer

Item

Type

HJ-2185

HJ-2190

HJ-2195

HJ-2197

NCO% Content

3.5±0.2

4.2±0.2

6.0±0.2

6.5±0.2

Density 25℃/(g/cm³)

1.11

1.11

1.12

1.12

Viscosity 80℃/mpa·s

900-1100

800-1000

700-900

600-800

Appearance at 25℃

Colorless transparent liquid

Mix Temperature ℃

Prepolymer /Moca

85℃/115℃

80℃/115℃

75℃/115℃

75℃/115℃

Gel Time /min

13-18

10-15

6-10

3-5

Vulcanization Time (h)

25-16

25-16

25-16

25-16

Physical Properties

Hardness (Shore A)

85±2

90±2

95±2

97±2

Tensile Strength (Mpa)

25-28

33-38

38-45

40-46

100% Modulus (Mpa)

11-12

14-16

16-18

18-20

300% Modulus (Mpa)

18-20

28-30

38-42

40-43

Elongation at Break (%)

360-420

350-400

280-350

250-300

Tear Strength (KN/m)

60-65

75-85

90-100

95-105

Compression permanent deformation %

4-6

4-6

2-4

2-4

DIN Abrasion loss（mm³）

≤45

≤40

≤40

≤40

Resilience %/25℃

40-45

35-40

28-32

26-30

- Product application : PU Rollers, casters, seals, pistons, classification screens, flotation machine impellers, forklift tires, molds, slurry pump linings and other products.

- Operation details:After vacuum degasing at 75-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation.

- Storage:Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months.

- Packing:20kg or 200kg iron drum

We are committed to providing quality Machine Casting Polyurethane Cast Elastomer, Elastomer Casting Machine for Polyurethane ... and services through our main business strengths and synergistic development of related industries. We are always trying to make use of new innovation and product performance to improve the product series. In the future, we will continue to increase investment in research and development to further enrich our technical reserves, enhance independent innovation capabilities, and accelerate technological transformation to maintain our leading position in technology.

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