Bio-SAH CA302 is a high-performance waterborne polycarbodiimide crosslinker that also functions as an efficient hydrolysis stabilizer. It is specifically designed for aqueous polymer systems such as waterborne acrylic emulsions and polyurethane dispersions (PUD). In these systems, exposure to moisture, heat, and chemicals can lead to hydrolytic degradation, reduced mechanical strength, poor surface durability, and weakened adhesion.
By combining crosslinking capability with hydrolysis stabilization, Bio-SAH CA302 provides a dual-function solution that enhances both the chemical structure and performance of polymer networks. It is especially suitable for applications requiring long-term durability and resistance in demanding environments.
Dual functionality: crosslinking and hydrolysis stabilization
Excellent waterborne compatibility and easy formulation
Significantly improves hydrolysis resistance
Enhances chemical resistance and solvent resistance
Improves abrasion and scratch resistance of coatings
Promotes adhesion to various substrates (plastics, metals, textiles)
Suitable for environmentally friendly water-based systems
Bio-SAH CA302 is widely used in:
Waterborne acrylic emulsion coatings
Polyurethane dispersions (PUD)
Water-based adhesives and sealants
Textile coatings and finishing agents
Protective coatings for plastics and metals
Functional coatings requiring durability and adhesion
Bio-SAH CA302 contains reactive carbodiimide groups that can react with carboxyl groups in polymer chains, forming stable crosslinked structures. At the same time, these functional groups also react with carboxylic acid species generated during hydrolysis, effectively eliminating catalytic sites responsible for degradation. This dual mechanism not only strengthens the polymer network but also suppresses hydrolytic chain scission, resulting in improved long-term stability and performance.
Recommended dosage: typically 1.0% – 3.0% based on solid resin content
Can be added directly into waterborne systems under stirring
Suitable for room temperature or mild heating conditions
Recommended to use shortly after addition for optimal crosslinking performance
Store in a cool, dry, and well-ventilated environment. Avoid freezing and prolonged exposure to air. Keep container tightly sealed after use. Follow standard industrial safety procedures during handling.
