alpha metals

Buying Guide: Choosing Soldering Flux

Acid Flux Brushes
These brushes are used for applying flux to work areas before soldering or welding, including pipe soldering applications. They also suit general-purpose uses such as PCBs, wires, stained glass and arts and crafts. The brushes are non-shedding and can apply glue, oil and pastes as well.

Rosin Core Flux Paste
This 2 oz paste is intended for electrical and electronic repairs. Its main applications are radio, TV, VCR, stereo, wires and motors. It is formulated for use with both tin/lead and lead-free alloys.

Matching Flux to the Job
Choose acid flux brushes for pipe and general work areas, and rosin core paste for electronics and wiring. Check the solder alloy you plan to use before you buy. Follow the manufacturer's instructions, and have a qualified technician handle any brake, fuel, gas or pressure-system work.

Frequently Asked Questions

What does Alpha Metals offer?
Alpha Metals offers aluminum flux brushes in a 4-7/8 in. length, sold as 144 pc, and a 2 oz lead-free rosin core flux paste for soldering.

How do I choose between a flux brush and flux paste?
Choose the flux brush for applying flux to pipe soldering and general work areas before soldering or welding. Choose the rosin core paste for electrical and electronic repairs. Match the product to your job and your solder alloy.

Which solder alloys does the flux paste work with?
The Alpha Metals rosin core flux paste is formulated for use with tin/lead and lead-free alloys. Follow the manufacturer's instructions when you use it.