Bio-SAH™ 362 Powder
Bio-SAH™
Bio-SAH™ 362 powder
BIO-SAH 362 Powder is a carbodiimide-based hydrolysis stabilizer specifically engineered for polyester polyurethane (PU) systems. Polyester-based materials are highly susceptible to hydrolysis due to the presence of ester bonds, especially under conditions of heat and humidity. BIO-SAH 362 provides an efficient and reliable solution by chemically reacting with carboxyl groups generated during degradation, thereby preventing autocatalytic hydrolysis and extending material lifespan.
Excellent hydrolysis resistance for polyester-based polymers
Reactive stabilization mechanism (carbodiimide chemistry)
Improves long-term mechanical properties and durability
Powder form for convenient dosing and uniform dispersion
Good compatibility with TPU, PU elastomers, coatings, and adhesives
Maintains performance under high humidity and elevated temperatures
BIO-SAH 362 Powder is widely used in industries where polyester polyurethane materials are exposed to moisture and heat:
Thermoplastic Polyurethane (TPU)
PU coatings (industrial, automotive, textile coatings)
Adhesives and sealants
Synthetic leather and films
Outdoor and high-humidity applications (e.g., tents, cables, footwear)
The carbodiimide functional groups in BIO-SAH 362 react selectively with carboxylic acid end groups formed during ester hydrolysis. This reaction forms stable N-acylurea structures, effectively eliminating the catalytic sites that accelerate further degradation. As a result, the hydrolysis cycle is interrupted, and the material retains its structural integrity over extended service periods.
Recommended dosage: typically 0.5% – 2.0% depending on system requirements
Can be added during compounding or directly into the polymer matrix
Suitable for extrusion, injection molding, and coating processes
Store in a cool, dry place away from moisture. Keep the container tightly sealed after use to maintain product stability. Proper protective equipment is recommended during handling.
