Leader in silver-containing brazing consumables for the HVAC&R industry

Industry and megatrend

China, Mexico, Middle East and Europe are the main markets for HVAC&R brazing. As a competent partner for brazing applications Fontargen Brazing serves customers in refrigeration, HVAC systems and vehicle air-conditioning as well as in the heating heat pump technology. The industry trends are taken into account in product selection and product development:

  • Ongoing expansion of fast food chains with new equipment needed at smaller locations for cooling large volumes of food.
  • Market driven by the increase in frozen food consumption. Need to increase the cold chain quality in order to insure high hygiene standards.
  • Avoid breakdown and loss of stocks and insure the concordance regarding all National legislations for food safety standards.
  • Reduce production costs by optimizing brazing and post brazing processes.
  • Air-conditioning of buildings, offices in cars, a.s.o. to be seen as standard.
  • Use of aluminum as new base material for micro-channels heat exchangers (HX). The aim is to reduce refrigerant charge in the HX, increase its surface by minimizing its weight, allow a higher efficiency, a lower refrigerant charge and a smaller footprint

Customers and main stakeholders

Our customers trust in our technically proven and customized products. voestalpine Böhler Welding Fontargen GmbH is involved in many global R&D projects, partnerships with HVAC&R manufacturers and networks.

We are proud to support a wide range of major players in the HVAC&R industry segment. Our customers include HVAC Systems manufacturers as well as producers of heat pumps, refrigerators, compressors and control units. We provide the technical support for both developing the brazing process and choosing the appropriate alloys types and forms. We run technical process optimization with the customer and support him in its new projects. Please see a selection of our reference projects below.

Our products are used for the following applications:

  • Heating: heat pumps; water heaters; room heating; towel dryers; induction heaters; thermostats; cookware; car heater cores
  • Air conditioning: heat exchangers; chillers; roof top units; data center cooling; room air conditioning units
  • HVAC DX systems: air-cooled and water cooled (split; build-up; windows unit; packaged unit; condenser water pump units; cooling towers)
  • HVAC central systems: air-cooled chilled and water cooled chilled (condensers; chilled water pump units; chillers; cooling towers)
  • Refrigerating: refrigerators; displays (island; multi-deck); reach-in coolers; walk-in coolers; blast freezers; freezers; transportation coolers
  • HVAC vehicle: evaporator; compressor; condenser; radiator
  • Compressors: rotary; reciprocating; scroll; screw and centrifugal

Product solutions

  • Bare and coated silver rods and wires
  • Fluxes
  • Copper phosphorus rods and wires (square and round)
  • Copper and aluminium wires
  • Copper, tin, silver and nickel brazing paste
  • Preforms
  • Foils


We provide additional value by offering:

  • Process optimization with the customer
  • Brazing process debugging
  • Courses for the staff
  • Expertise in brazing techniques
  • Intensive customer support by our competent internal and external staff

Important benefit for customer

  • Solution provider
  • Global distribution and sales network
  • Broad product range
  • Fulfilling special demands
  • Engineering support
  • ISO 9001 / 14001 Approvals
  • AEO Standard
  • Deliveries just in time in all packing units
  • Financial performance