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CARBODILITE - Water Based Polycarbodiimide Crosslinking Agent

Waterborne polycarbodiimide resin which contains carbodiimide [ - N=C=N - ] group with hydrophilic segments

Very safe for use and environment friendly crosslinker (Applicable for VOC regulatory compliance products)
Wide range of products (Customers can choose the most suitable ones)

key features water based carbodiimide crosslinking agent

Key Features of Carbodilite - Carbodiimide Crosslinking Agent

Excellent environmental profile – Designed for use in environmentally conscious coating and resin systems.
Long pot life – Provides a longer working time after mixing, supporting convenient processing and application.
Excellent reactivity with carboxylic acid groups – Efficiently reacts with carboxyl groups in resins to promote crosslinking and improve coating performance.
Room-temperature reactivity – Enables crosslinking at room temperature, helping simplify processing conditions.
Improved adhesion – Enhances adhesion between coatings, resins, and various substrates.
Maintains flexibility – Helps maintain the flexibility of the resulting coating or resin system after crosslinking.
Easy dispersion – Can be easily dispersed in suitable water-based resin systems.
Excellent hydrolysis resistance – Improves resistance to hydrolysis, particularly for resins containing ester bonds.

How Does Carbodilite Work?

Carbodilite is a carbodiimide-based crosslinking agent that improves the performance and durability of polymers and coatings.

The carbodiimide groups in Carbodilite react with carboxylic acid groups in the base resin (polymer) to form a three-dimensional crosslinked network. This crosslinking structure strengthens the polymer and improves its resistance to water and solvents.

As a result, Carbodilite can help enhance the water resistance, solvent resistance, and overall durability of various resin systems.

Suitable Resins for Carbodilite

comparison betweencarbodiimide water based crosslinker with other crosslinker

Comparison Between Carbodilite & Other Crosslinker

Specification & Carbodilite Types

Carbodiimide water based crosslinking agent type & specification

Usage Guidelines

Recommended Dosage: Approximately 3–7% CARBODILITE® solids based on the total formulation.
For Faster Crosslinking: Increase the curing temperature to accelerate the crosslinking reaction.
For Longer Pot Life: Increase the formulation pH using a suitable neutralizer, such as ammonia or amines.

Notes:

The crosslinking reaction does not proceed effectively when using metal hydroxide-based neutralizers.
Increasing the pH may not extend pot life when the formulation contains glycol-based solvents.

The next generation of water-based crosslinking technology

Carbodilite: Water-Based Polycarbodiimide Crosslinking Agent

water-based polycarbodiimide crosslinker reaction mechanism

Carbodilite polycarbodiimide reaction with carboxylic acid

Carbodilite is compatible with various water-based resin systems and carboxylic acid-functional polymers. It can be used as a crosslinking agent for the following resin types:

Polyurethane Dispersion (PUD)
Acrylic Emulsions
Carboxylic Acid-Modified Resins, such as SBR and NBR latex
Water-Dispersible Polyester Resins

These resin systems can benefit from Carbodilite crosslinking to improve properties such as water resistance, solvent resistance, and overall durability.

Benefits of Carbodilite

Improved Water Resistance – Enhances resistance to water and moisture.
Improved Durability – Strengthens the resin structure for better long-term performance.
Better Chemical Resistance – Helps protect coatings and polymers from chemical exposure.
Improved Adhesion – Enhances the adhesion of coatings, adhesives, and other resin systems to substrates.
Water-Based System Compatibility – Suitable for various water-based resin systems, including PUD and acrylic emulsions.

Suitable Application for Carbodilite

Carbodilite is a versatile carbodiimide crosslinking agent for water-based coatings, printing inks, adhesives, and other resin systems. It can be used on a variety of substrates, including: