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

Liquid flux materials from HARIMA 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.

HARIMA 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.

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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.

Industrial Applications

While solder techniques are used within many industries, today, both the automotive and consumer electronics industries are highly dependent on high-quality solder wires.

Automotive

Solder wires used within the automotive industry for electronic control units and harnesses need to fulfill a broad range of tasks. Reliable electrical connection, high-mechanical strength and corrosion resistance are also crucial to the reliability and efficiency of any vehicle and its associated components. HARIMA offers 90ISC alloy in cored and solid wire to achieve highest solder joint reliability.

Electronics

The consumer electronics industry represents a high demand for all types of solder wire. Both lead-based and lead-free solder wires are used, with the latter becoming increasingly popular as the technology advances and environmental restrictions become increasingly prevalent. Additionally, as devices become increasingly miniaturized, robotic soldering techniques are developing quickly, and ensuring you have the right solder technologies for production lines is paramount to cost efficiency and maintaining high standards. This is especially important in the telecom and datacom industry.

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.

Solder Flux Materials