RelcaLink® HX-1: Safe Polycarbodiimide Crosslinker for Coatings

When you’re formulating coatings that need to last, whether for wood, plastic, metal, or film, crosslinkers play a critical role in delivering durability, resistance, and performance. But many commonly used options, like aziridines and isocyanates, come with health and safety concerns, not to mention increasing regulatory pressure.

RelcaLink® HX-1 offers a better way forward.

RelcaLink® HX-1 is a safe, high-performance polycarbodiimide crosslinker for coatings with fast cure, long pot-life and no hazard labelling.

 

A more Advanced Solution

RelcaLink® HX-1 is based on a new polycarbodiimide technology designed to deliver high-performance crosslinking, without the drawbacks that usually come with it. It reacts quickly at room temperature, builds a strong, stable network within the coating, and enhances everything from chemical resistance to surface hardness.

What sets it apart? It combines fast reactivity, extended pot-life, and a safer classification, making it much easier to work with, while still delivering the results you expect from high-end crosslinkers.

What to Expect

  • Direct replacement for polyaziridines (1:1)
  • Fast curing at room temperature
  • Up to 32 hours of pot-life
  • Excellent resistance to chemicals like ethanol, coffee, ink, and acetone
  • Strong adhesion on tough substrates like aluminum
  • No hazardous labelling required

RelcaLink® HX-1 is a safe, high-performance polycarbodiimide crosslinker for coatings with fast cure, long pot-life and no hazard labelling.

 

Tested, Proven, Reliable

In lab tests, RelcaLink® HX-1 outperformed traditional crosslinkers in many key areas. It showed stronger final hardness, better stain resistance, and longer open time without compromising performance. It’s versatile too: it works in primers, base coats, and topcoats, and works nicely with all kinds of binders and additives.

RelcaLink® HX-1 is a safe, high-performance polycarbodiimide crosslinker for coatings with fast cure, long pot-life and no hazard labelling.

 

Ready for What’s Next

The coatings industry is evolving fast. Performance alone isn’t enough anymore — you need compliance, sustainability, and flexibility. RelcaLink® HX-1 delivers on all fronts, helping formulators create better coatings with fewer compromises.

Want to know more? Visit us at stahl.com or contact us at communications@stahl.com to get in touch, request a sample or speak with our experts.


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