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Polyurethane Elastomer (MDI-Polyester Type) – Durable & Versatile Industrial-Grade Material
Product Overview
Our MDI-Polyester Polyurethane Elastomer series is engineered for superior performance in demanding environments. Utilizing MDI (Methylene Diphenyl Diisocyanate) and polyester polyols, this series offers excellent mechanical properties, outstanding abrasion resistance, and good oil resistance. With a hardness range spanning from rigid 56D to flexible 80A, it provides tailored solutions for high-wear, high-load, and dynamic applications across various industries, from heavy machinery to consumer goods.
Technical Specifications
| Product Series |
MDI polyester |
| model |
M220/56D |
M220/95A |
M220/90A |
M220/85A |
M220/80A |
| NCO% |
9.3 |
9.8 |
8.8 |
6.9 |
5.9 |
| VIS/70C |
800.00 |
850.00 |
1500.00 |
1400.00 |
2000.00 |
| CURATIVE |
BDO |
BDO |
BDO |
BDO |
BDO |
| RATIO |
9.40 |
9.90 |
8.90 |
7.00 |
6.00 |
| POT LIFE |
4MIN |
5MIN |
5MIN |
5MIN |
6MIN |
| HARDNESS |
56D |
95A |
91A |
85A |
80A |
| TENSILE STRENGTH |
50 |
46 |
44 |
45 |
40 |
| ELONGATION |
470 |
550 |
320 |
480 |
600 |
Key Features & Technical Highlights
Balanced Hardness & Flexibility
Spans from rigid (95A) to flexible (75A), suitable for products requiring structural support or impact absorption.
Example: T150/95A is ideal for high-stress rollers, while T150/75A is perfect for soft-grip handles.
Superior Mechanical Properties
Maintains solid tensile strength (up to 55 MPa) and significant elongation (up to 520%), ensuring resilience under mechanical stress and repeated use.
Offers good tear resistance and abrasion resistance, contributing to long product life.
Controlled Processability
Pot life ranges from 3.5 to 18 minutes, providing flexibility for various manufacturing processes, from quick casting to detailed molding.
Viscosity at 70°C is optimized for processing, ranging from 650 to 2500 cP, facilitating easy handling and molding.
Eco-Friendly Advantage (Biodegradability)
The PCL-based structure offers a degree of biodegradability under specific conditions, making it a more sustainable choice for environmentally conscious products.
Industrial & Consumer Applications
| Application Scene |
Recommended Model |
Performance Advantage |
| Heavy-Duty Wheels & Rollers |
M220/56D / M220/95A |
High hardness and tensile strength withstand heavy impact and load without deformation, ideal for forklift wheels and conveyor rollers. |
| Industrial Seals & Gaskets |
M220/90A / M220/85A |
Excellent compression set resistance and oil resistance ensure long-term sealing performance in hydraulic and pneumatic systems. |
| High-Abrasion Lining & Wear Parts |
M220/95A / M220/90A |
Superior abrasion resistance extends service life in mining equipment, slurry pumps, and chute linings. |
| Flexible Couplings & Shock Absorbers |
M220/85A / M220/80A |
High elasticity (480-600% elongation) and resilience effectively absorb vibration and impact energy in machinery. |
| Printing & Coating Rollers |
M220/90A / M220/85A |
Balanced hardness and flexibility provide precise surface contact for uniform ink or coating transfer. |
Why Choose Our MDI-Polyester Elastomer?
- Material Versatility: Suitable for heavy machinery, automotive, oil & gas, material handling, and printing industries.
- Longevity: Offers significantly longer service life compared to conventional rubber, especially in abrasive and oily environments.
- Customization: Adjustable NCO% (5.9–9.8%) and curing ratios allow for precise customization to meet specific equipment and operational requirements.
Technical Support & Services
We provide comprehensive technical support, including material selection guidance and process optimization recommendations. Download our detailed technical datasheet for complete curing parameters and safety handling instructions.
Loading and Packaging Process
We offer flexible packaging solutions to meet your needs, whether you're testing a sample or preparing for large-scale production.
Company Overview
Quality Assurance & Research
Manufacturing & Storage
Frequently Asked Questions
What is the target application for your prepolymer?
Please specify your industry and end-use, e.g., footwear (soles), industrial rollers, seals, or other elastomeric components. This helps us recommend the optimal formulation and curing system.
What are your specific performance requirements?
Please indicate your target values for hardness (Shore A/D), tensile strength, elongation at break, and abrasion resistance. Our standard M240/60D offers excellent specifications, but we can customize to meet your needs.
Do you require a specific curing agent or system?
We typically recommend BDO or other curatives. Let us know if you have a preferred curative or if you need technical assistance in selecting the best one for your process.
What is your required sample quantity for testing and evaluation?
We provide free samples (typically 1-2 kg) for R&D purposes. Please specify the quantity needed to conduct your initial trials.
What certifications or quality standards are mandatory for your project?
Our products are SGS and ROHS certified. Inform us if you need additional certifications like ISO, REACH, or specific industry standards.
What is your estimated monthly or annual consumption volume?
Providing your forecasted volume (kg/month or tons/year) allows us to structure the most competitive pricing and ensure supply chain stability.
What is your target price per kilogram?
While we strive to offer the best value, sharing your budget helps us find a solution that meets both your performance and cost requirements.
Do you require technical support during the product development or production phase?
Our technical team can provide guidance on formulation optimization, processing parameters, and troubleshooting. Let us know your level of support needed.
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