For connections that last: brazing flux (KAlF₄) from GELSENCHEM
When it comes to aluminum brazing, the flux makes the difference. Our potassium fluoroaluminate-based (KAlF₄) flux solutions create durable, leak-tight, corrosion-resistant bonds that stand the test of time.
We supply critical industries where reliability isn’t negotiable:
- Automotive: cooling systems, heat exchangers, lightweight components
- Refrigeration and HVAC: high-efficiency heat exchange systems
- White goods and electrical appliances: long-lasting, corrosion-proof assemblies
Our product range spans powder flux, flux pastes, paints, and bespoke formulations tailored to your exact specifications. Every GELSENCHEM product holds all relevant certificates and approvals.
Quality, proximity, speed:
GELSENCHEM – your partner for aluminum brazing
With more than 20 years of experience in aluminum brazing and with strategic locations in Germany, the USA, and China, we serve customers worldwide.
We offer flexibility, fast communication from inquiry to order and delivery, as well as intelligent logistics and warehouse management. In this way, we set new standards in our industry for successful and lasting customer relationships: sustainable, efficient, and future-oriented.
Our certified quality management system ensures consistent product excellence and processes that meet the highest industrial standards.


