High-Strength Extended-Pot-Life
SM-CS-104
Polyurethane Extended-Pot-Life Cryogenic Adhesive
Product Description：
A two-component polyurethane cryogenic structural adhesive specifically developed to solve the engineering pain points of “balancing high-strength bonding, high-toughness cushioning, and strict cost control.” The product innovatively integrates the excellent flexibility of polyurethane with epoxy-like high adhesion, delivering a structural-grade shear strength approaching 20 MPa at room temperature. Complemented by a long pot life exceeding 60 minutes, this adhesive operates stably across a broad temperature range of -269℃ to +60℃. It serves as an ideal non-contact cryogenic structural bonding solution for applications subject to alternating high and low temperatures, particularly in cost-sensitive scenarios where the adhesive does not come into direct contact with cryogenic media.
Key Features:
Balanced Rigid-Flexible Mechanical Matrix: Overcomes the strength limitations of traditional polyurethanes by combining high elasticity with superior adhesion.
Extended Operational Window: Features a prolonged pot life of over 60 minutes.
Cost-Effective Non-Contact Solution: Specifically optimized for external structural components not in direct contact with liquefied media.
Typical Properties
| Property | Value |
| Main Resin | Polyurethane |
| Cured Appearance | Yellow Translucent |
| Viscosity @ 25°C (mPa·s) | 12,000 |
| Curing Time（25°C,h） | 1 |
| Track-free Time (h) | 8 |
| Operation Temperature | -196～40℃ |
| Tensile Strenth : 25℃ / -196℃ | 18.0 MPa / 20.0 MPa |
| Hardness | 25 Shore D |