HMDI / Ethers
The HMDI/Ethers series includes aliphatic isocyanate–terminated polyether prepolymers (e.g., Pre-Pol® PC 70-90 and PC 70-70D) designed for high-performance elastomers. These systems cure rapidly (especially with Ethacure 100) to deliver high Shore A hardness, excellent UV resistance, and outstanding clarity—ideal for durable, color-stable parts.
Product Category Features
- Aliphatic MDI-terminated polyether chemistry, enabling outdoor durability and color stability.
- High Shore A hardness (~93–95 A), providing firm and resilient elastomeric properties.
- High resilience and low-temperature flexibility, ensuring performance under stress and cold conditions.
- Excellent clarity and UV resistance, maintaining optical quality over time.
- Good hydrolytic stability, ideal for environments with moisture exposure.
- Fast curing when paired with Ethacure 100 (for PC 70-90), enabling efficient processing cycles.
Typical Uses
- Optically clear and UV-stable elastomeric parts, such as protective lenses and transparent wear components.
- Outdoor-exposed components, like seals and bushings where color and clarity must endure sunlight.
- High-resilience elastomeric parts needing durability and flexibility across various temperatures.
- Cast moldings requiring short processing times, particularly when paired with rapid curatives like Ethacure 100.
