Henkel has developed a variety of liquid flux materials to facilitate Pb-free and SnPb wave soldering processes, selective soldering, rework operations, and laser soldering. Henkel’s liquid flux products are environmentally responsible and align with sustainable manufacturing approaches.

Liquid flux materials from Henkel deliver outstanding performance, allowing efficient flow of solder while also providing cleaning and purification properties. Additional benefits include:

  • Exceptional soldering performance
  • Electrically safe, high surface insulation resistance (SIR)
  • Minimal residue
  • Suited to a broad range of applications and metallic substrates
  • For wave and selective soldering automated process

In any soldering application, various challenges may present themselves to the manufacturer depending on the exact application. Cleaning and purification of joints is among the most important factors for ensuring precision electronics in consumer goods. Moreover, solder fluxes also help enable the high mechanical strength of joints which may also be important in automotive applications where vibration and impact resistance is required.

Henkel helps manufacturers meet these challenges with a range of high-quality flux materials suitable for any application in any industry. Whether using lead-free or lead-based solder, our solder flux delivers exceptional workability in both manual and automated processes.

Contact a member of our team to learn more about our products and to discuss your specific requirements.

Liquid No-Clean Flux

Lead-free no-clean flux provides extremely low residue material in applications where final cleaning of PCB boards or components is unnecessary. Ideal for production processes where high throughput and low product complexity are present, liquid no-clean flux reduces production costs and speeds up manufacturing times. In many applications where no-clean flux is used, any residue left by the flux is benign and will not affect the functionality of the PCB or components. No-clean, liquid soldering flux is used in manual and automated processes where solid flux may not be suitable.

Halogen-Free Flux

Many conventional fluxes contain halogens in order to aid oxide removal. However, concerns over their toxicity has led manufacturers to seek halogen-free fluxes as a potentially safer alternative for both humans and the environment. Halogen-free flux, otherwise known as halide-free flux, allows manufacturers to meet increasingly stringent environmental guidelines on end-of-life disposal of products.

VOC Free Flux

This type of flux has also been developed in response to calls for increased environmental safety when used in consumer electronics and automotive applications. VOC-free flux substitutes volatile organic compounds, such as solvents and other alcohols, for water-based chemistry. Additionally, VOC-fluxes are non-flammable for increased consumer safety.

Water Soluble Flux

Water soluble flux offers high reliability in long term applications as well as delivering safe chemistries for both consumers and the environment. Conventionally used in plumbing applications, water soluble flux has now been developed for use in electronics, offering more efficient application of solder and easy-clean formulas once PCBs and components are fixed.

Wave Soldering Flux

Used within large scale soldering process where components are soldered to PCBs, wave soldering automates electronics assembly in a wide range of industries. In order for these processes to work efficiently and effectively, high-quality wave soldering flux must be automatically dispensed, first cleaning the components and removing any build-up of oxide, and then soldering components to the board. Wave soldering flux is available in both corrosive (high acidity) and non-corrosive (low acidity) formulas depending on the applications.

Contact us today to learn more about the different types of flux available and which is suited to your existing soldering processes.

Industrial Applications for Solder Flux

Electronics assembly and automotive applications are two industries with high demand for soldering processes and, subsequently high-quality solder flux. Additionally, other industries may benefit from either select soldering or wave soldering techniques, with these processes offering distinctive advantages.

Automotive Industry

In addition to efficient joining and high-quality electrical operation, solder joints within the automotive industry also require high levels of mechanical strength. Vibration, impacts, and other environmental forces must be factored in, and with the increase in electronic components integrated into vehicles, reliable electronics are more important than ever before.

Henkel solder flux materials allow manufacturers within the automotive industry to create solid electrical connections using both manual and automated processes, delivering efficiency and high levels of reliability across the board in automotive applications which minimizes the risk for electrochemical migration.

Electronics Industry

The electronics industry includes the manufacture of a broad range of devices and components, spanning industrial to consumer applications. Each device or component represents its own set of specific challenges, and Henkel offers manufacturers flexibility and through our selection of liquid fluxes for electronics.

Whether high-mechanical strength is required on larger parts, or precision electronic soldering is needed on tiny PCBs, our liquid flux for electronics deliver superior performance across a range of different applications. These fluxes are ideal for both manual and automated processes.

Selective Soldering vs. Wave Soldering

Used within the automotive and electronics industries, both wave and selective soldering processes deliver pros and cons. For large scale processing of mass-produced components and boards, high-quality wave soldering fluxes are required to ensure cleaning and joining. Selective soldering fluxes, on the other hand, are required for precision manual processes.

The selective soldering vs. wave soldering debate then, is really down to the type of processes you currently use or plan to implement in the near future. For more information on the best flux for your application, contact a member of our team.

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