Bio-SAH 322 Liquid is a high-performance carbodiimide hydrolysis stabilizer developed specifically for polyurethane (PU) systems and related materials. Polyester-based polyurethanes, including TPU, CPU, and MPU, are widely used in elastomers, coatings, and adhesives due to their excellent mechanical properties and flexibility. However, these materials are inherently susceptible to hydrolysis because of ester linkages in their structure.
Exposure to moisture, heat, and long-term environmental conditions can lead to chain scission, resulting in reduced molecular weight, deterioration of mechanical properties, and failure in end-use applications. Bio-SAH 322 Liquid provides an effective solution by stabilizing these materials against hydrolytic degradation.
Its liquid form offers significant processing advantages compared to solid stabilizers, including easier handling, faster mixing, and improved dispersion in formulations. This makes it particularly suitable for adhesive systems and liquid processing environments.
Efficient hydrolysis stabilization for PU, TPU, CPU, and MPU systems
Liquid form for easy dosing and uniform dispersion
Excellent compatibility with polyester-based polyurethanes
Improves durability and mechanical property retention
Suitable for PLA, EVA, and adhesive systems
Enhances performance under humid and high-temperature conditions
Bio-SAH 322 Liquid is widely used in:
Polyurethane elastomers (PU, TPU, CPU, MPU)
Adhesives and sealants
EVA-based materials
Biodegradable polymers such as PLA
Coatings and flexible polymer systems
Applications exposed to moisture and heat
Bio-SAH 322 contains reactive carbodiimide functional groups that react with carboxylic acid end groups generated during hydrolysis. This reaction forms stable N-acylurea linkages, eliminating catalytic degradation sites and preventing further chain scission. As a result, the hydrolysis process is effectively suppressed, maintaining molecular integrity and long-term performance.
Recommended dosage: typically 0.5% – 2.0% depending on system requirements
Can be directly added during formulation or compounding
Suitable for extrusion, coating, and adhesive processing systems
Store in a cool, dry, and well-ventilated environment. Avoid exposure to moisture and air. Keep container tightly sealed after use. Follow standard industrial safety procedures.
