Spray Polyurea Waterproof Coating/Two Part Polyurea Anti-Corrosion Coating

Spray Polyurea Waterproof Coating/Two Part Polyurea Anti-Corrosion Coating

Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.

Product Introduction

Our high-quality raw materials and advanced technology have laid the foundation for the production of high-quality PTMEG Type MDI System Polyurethane Elastomer, PU Tube and Pipe, 7 Crystal Water Zinc Borate. According to our own strength, we are confident to build the company into a world-class enterprise with global competitiveness. Our eternal promise is that we will seize every opportunity to cooperate with customers and seek opportunities for common development. Through the integration of advanced technology and experience at home and abroad, we provide our partners with services that meet their actual needs, discuss and innovate with our partners, and constantly pursue the sustainable development of the company. Our company draws lessons from the advanced management concept and mode, actively integrates and innovates, continuously improves the management level and efficiency, and continuously enhances the operation ability.

Characteristics of MDI raw materials

1. Under conventional hardness, TDI and MDI products have no great difference in strength index, but will have obvious improvement in elasticity and wear resistance.

MDI products will have better wear life and softer hand feeling.

Indicators

Polyester TDI

Polyester MDI

Hardness (shA)

90

90

Tensile strength (Mpa)

51

48

Elongation (%)

577

546

Tear strength (KN/m)

107

102

Rebound (%)

30

40

Wear (mm3)

50

38

2.Fast reaction rate

With high NCO content and catalyst intervention, the reaction rate of MDI feedstock is 1-2 times faster than that of TDI series feedstock.

3.Environmental protection

The vapor pressure of MDI is much lower than that of TDI, and it has aromatic odor and little toxicity in the production process, so MDI is a new material that meets the needs of environmental protection

4.Low application temperature of materials

Because of the high activity of MDI, the application temperature of MDI raw materials is much lower than that of TDI series raw materials in order to prevent the degradation of physical properties of final products caused by self-polymerization of raw material.

5. Because of the high resilience and flexibility, MDI series products are much better than TDI series products in the application effect of sieve plate. The improvement of elasticity is helpful to improve the impact wear resistance and self-cleaning effect of products.

Type

HJ2285M

HJ2290M

HJ2295M

HJ2385M

HJ2390M

HJ2395M

NCO content /%

6.0±0.2

7.5±0.2

8.8±0.2

6.0±0.2

7.5±0.2

8.8±0.2

Appearance in 20℃

PTMEG type,white solid

Polyester type,white solid

1,4-BD dosage (100gPUP )/g

6.2

7.7

9.1

6.2

7.7

9.1

Viscosity(85℃)/mPa·s

1300-1500

900-1100

750-850

1300-1500

1100-1300

900-1100

Mixing temperature/℃ (PUP/1,4BD)

85/40

85/40

80/40

85/40

85/40

80/40

Catalyst addition dosage (1000gPUP)/g

Catalyst addition dosage (1000gPUP)/g

Gel time /min

8—10

5—7

4—6

8—10

5—7

4—6

Vulcanization Time (100-110℃)/h

24-48

24-48

24-48

24-48

24-48

24-48

Hardness(shore A)

85±2

90±2

95±2

85±2

90±2

95±2

Tensile strength/MPa

34-39

37-42

43-48

42-47

48-53

52-57

100% Modulus /MPa

4—6

5—8

10—14

3—6

8—10

10—13

300%Modulus /MPa

10—15

13—18

20—30

8—14

16—20

20—24

Elongation at break/ %

360-460

560-660

440-540

530-630

580-680

480-580

Tear strength(KN/m)

60-70

95-105

105-115

75-85

105-115

115-125

Rebound/ %

48-50

46-48

45-47

45-47

42-45

40-43

Specific gravity(25℃)(g/ cm3

1.11

1.11

1.12

1.23

1.23

1.24

DIN Abrasion loss /mm³

≤38

≤35

≤32

≤38

≤38

≤36

Our company has strong strength, strong technical force and excellent equipment, and its production scale, production capacity and technical force are in the leading position in the same Spray Polyurea Waterproof Coating/Two Part Polyurea Anti-Corrosion Coating industry field in China. We constantly standardize the management business process, provide sales management data, and support the business development of the sales team. From the raw materials into the factory to the output of the complete product at all stages, we reasonably implement the inspection items, methods and approaches according to the product and process process requirements, and take the initiative to master the product structure, performance and quality requirements of the production site.

Hot Tags: two componment mdi based polyurethane prepolyer, China, manufacturers, factory, buy, Hot Casting Polyurethane Prepolyer, PU Rubber Rod, Zinc Borate 2335 80, 3 Crystal Water Zinc Borate, Zinc Borate 2335 200, Zinc Borate 2335 400

[[ProKeywords]]
You Might Also Like