Bio-SAH CA302 VOC-Free Waterborne Polycarbodiimide Crosslinker Hydrolysis Stabilizer for Eco-Friendly Coatings Adhesives and Polymer Systems

Overview

Bio-SAH CA302 is an innovative VOC-free waterborne polycarbodiimide solution developed to meet the growing demand for environmentally friendly and high-performance additives in modern industrial applications. Traditional carbodiimide solutions often contain volatile organic compounds (VOCs), which pose environmental and regulatory challenges. Bio-SAH CA302 eliminates this issue by offering a water-based, VOC-free formulation without compromising performance.

As a dual-function additive, it acts both as a crosslinking agent and a hydrolysis stabilizer. It is particularly suitable for aqueous systems where long-term stability, durability, and environmental compliance are critical.

Key Specifications

• Appearance: Colorless to light yellow liquid

• Chemical Type: Waterborne polycarbodiimide

• VOC Content: Zero (VOC-free)

• Solvent System: Water-based

Key Features

• VOC-free formulation for environmental compliance

• Waterborne system compatible with eco-friendly formulations

• Dual functionality: crosslinking and hydrolysis stabilization

• Significantly improves resistance to hydrolysis and moisture

• Enhances chemical resistance and durability

• Improves abrasion and scratch resistance

• Promotes adhesion to various substrates

Applications

Bio-SAH CA302 is widely used in:

• Waterborne coatings (industrial, protective, and functional coatings)

• Water-based adhesives and sealants

• Acrylic emulsions and polyurethane dispersions (PUD)

• Textile coatings and finishing systems

• Eco-friendly polymer systems requiring low VOC content

Mechanism of Action

Bio-SAH CA302 contains reactive carbodiimide groups that react with carboxyl functional groups in polymer chains, forming stable crosslinked networks. At the same time, these groups neutralize carboxylic acids generated during hydrolysis, effectively suppressing degradation. This dual mechanism enhances both the structural integrity and long-term stability of materials, particularly in water-exposed environments.

Processing & Dosage

• Recommended dosage: typically 1.0% – 3.0% based on resin solids

• Can be directly added to waterborne systems under stirring

• Suitable for room temperature processing or mild heating

• Best used within a defined pot life after addition

Storage & Handling

Store in a cool, dry, and well-ventilated environment. Avoid freezing. Keep container tightly sealed. Follow standard industrial safety guidelines.