Cross-Linking Agents – Poly-Urea: the perfect mix of Adhesion, Resistance, and Flexibility
Chimica Lombarda’s poly-urea portfolio offers the ideal adhesion promoter for leather and textile coatings. Poly-urea combines cross-linking and adhesion promotion without compromising the elasticity and flexibility of the substrate, significantly improving printability.
Our poly-ureas feature exceptional characteristics as cross-linking agents that enhance the bonding strength and cohesive force of resins and binders. They create films with improved mechanical resistance, including: Scratch resistance, Abrasion resistance, Hydrolysis resistance, Chemical resistance.
- High elasticity and mechanical strength.
- Excellent abrasion resistance (wet/dry) and chemical resistance.
- Superior adhesion.
- Low swelling in water and solvents.
- Long-lasting cross-linking durability and flexible processing.
- Suitable for light-colored articles.
- Anti-tacking properties.
- Improved printability.
Our poly-ureas significantly improve adhesion strength and can be used:
- As a high-adhesion solution in leather coating primers.
- As an additive for textile finishing agents, enhancing mechanical performance and wash resistance.
These cross-linkers are compatible with water-based resins and binders such as:
- Acrylic resins
- Polyurethanes
- Latex
- SBR
They react with functional groups like: Carboxylic, Hydroxyl, Chlorosulfonic, Aminic, Ester groups under certain conditions.
Our poly-ureas can initiate cross-linking at ambient temperature for carboxylic groups. The process can be completed efficiently and quickly between 80°C and 120°C.
By using Chimica Lombarda’s poly-ureas, you ensure improved performance, durability, and flexibility for your coatings.
Download our cross-linking agents catalog and discover the poly-urea product best suited to your needs.
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