Products

OEM ODM Hot Air Circulation Oven for Polyurethane Products

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

Send Inquiry

Product Introduction

We produce a variety of new styles of MDI System Casting PU Elastomer, Zinc Borate 2335 400, Cold Casting Polyurethane Prepolyer, and put them on the market in large quantities, which has been fully recognized by all sectors of society. The company is oriented to differentiated development concept and integrated problem-solving ability. We rely on our own advantages, closely follow the market trend, continue to introduce new products, and actively carry out international trade.

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 with its own unique professional and technical groups, relying on strong technical resources, and constantly develop new OEM ODM Hot Air Circulation Oven for Polyurethane Products. We are making great efforts to research and develop related products and markets. Our company attaches great importance to after-sales service, and the service team covers many foreign regions.

Hot Tags: two componment mdi based polyurethane prepolyer, China, manufacturers, factory, buy, PU ROD, Flame Retardent Zinc Borate, Two Componment Polyether Based Polyurethane Prepolyer, 3 5 Crystal Water Zinc Borate, Polyurethane Rubber Parts, MDI System Casting Polyurethane Elastomer

[[ProKeywords]]

Special Properties Polyurethane Prepolymer Hydrolysis Resistance and Low Temperature Resistant

Two Component Silicone Elastomer for Mould Making