Flux Pens | McMaster-Carr

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15 Products

No-Clean Soldering Flux for Electronics


Pen	Syringe

This flux leaves minimal residue so there's no cleanup. It cleans and prepares electrical assemblies and printed circuit boards for soldering. Product regulations restrict sales to the listed jurisdictions/areas.

Pastes—Paste flux is easier to apply than liquid flux for precise applications.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met	Features	Cannot Be Sold To		Each
Nickel, Copper, Brass, Bronze	0.3	Syringe	—	—	Paste	No Clean	IPC J-STD-004	Luer Lock Connection	—	0000000	000000
Copper, Brass, Bronze	0.3	Pen	Chisel	0.2"	Liquid	No Clean	IPC J-STD-004	—	Outside United States and Canada	0000000	0000

Lead-Free No-Clean Soldering Flux for Electronics

This flux leaves minimal residue so there's no cleanup. It cleans and prepares electrical assemblies and printed circuit boards for soldering.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met		Each
Copper, Brass, Bronze	0.3	Pen	Chisel	0.2"	Liquid	No Clean	IPC J-STD-004	0000000	000000

Easy-Clean Soldering Flux for Electronics


Pen	Syringe

The flux residue easily washes away with water. The flux cleans and prepares electrical assemblies and printed circuit boards for soldering.

Pastes—Paste flux is easy to apply for precision applications.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met		Each
Nickel, Copper, Brass	0.3	Pen	Chisel	0.157"	Liquid	Water	IPC J-STD-004	000000	000000
Nickel, Copper, Brass	0.3	Syringe	Needle	0.031"	Paste	Water	IPC J-STD-004	000000	00000
Copper, Brass, Bronze	0.3	Pen	Chisel	0.2"	Liquid	Water	IPC J-STD-004	0000000	0000

Flux Removers

Pen

For applications such as printed circuit boards, switches, and heat sinks, these removers get rid of any residue left behind by no-clean flux.

Pen—Pens are best for spot cleaning and precise removal.

For Removing—Lead-free and rosin flux removers are designed to remove the flux residue but not impact the remaining solder. It's common to use this remover when soldering with lead-free and tin/lead solders.

Cannot Be Sold To—Flux removers cannot be sold to the listed jurisdictions/areas due to import and product regulations.

	Container		Tip
For Removing	Size, fl. oz.	Type	Shape	Dia.	Form	Cannot Be Sold To		Each
Easy-Clean Flux, No-Clean Flux	0.3	Pen	Chisel	0.2"	Liquid	Outside United States	0000000	000000
Lead-Free Flux, Rosin Flux	0.3	Pen	Chisel	0.2"	Liquid	Outside United States	0000000	00000

Nonactivated Rosin Soldering Flux for Electronics

Pen

This flux has less cleaning action, but leaves the least amount of residue. The residue requires flux remover. Flux cleans and prepares electrical assemblies and printed circuit boards for soldering. Product regulations restrict sales to the listed jurisdictions/areas.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met	Cannot Be Sold To		Each
Copper, Brass, Bronze	0.3	Pen	Chisel	0.2"	Liquid	Flux Remover	IPC J-STD-004	Outside United States and Canada	0000000	00000

Mildly-Activated Rosin Soldering Flux for Electronics


Pen	Syringe

This flux has strong cleaning action and leaves residue that will not compromise the reliability of the joint. The residue requires flux remover. Use this flux to clean and prepare electrical assemblies and printed circuit boards for soldering.

Pastes—Paste flux is easy to apply in precise applications.

	Container		Tip
For Joining	Size	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met		Each
Nickel, Copper, Brass	10 ml	Syringe	Needle	0.055"	Paste	Flux Remover	IPC J-STD-004	00000000	000000
Copper	1/5 fl. oz.	Pen	Needle	0.013"	Liquid	Flux Remover	IPC J-STD-004	0000000	00000

Empty Needle-Point Pen Dispenser for Soldering Flux

Fill this dispenser with the flux of your choice to prepare electrical assemblies and printed circuit boards for soldering.

Container		Tip
Size, fl. oz.	Type	Shape	Dia.		Each
1/5	Pen	Needle	0.013"	0000000	00000

Soldering Flux for Stainless Steel

Syringe

Often used on metal that is difficult to solder, this flux works with stainless steel, Monel, and Inconel. Easily wash away residue with water.

Pastes—Paste flux is easier to apply than liquid flux, so it is a good choice for precise applications.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met		Each
Stainless Steel	0.3	Syringe	Needle	0.055"	Paste	Water	Fed. Spec. A-A-51145 Type I Form A	0000000	000000

No-Clean Soldering Flux for Low-Melting-Point Solders

Prepare workpieces for low-temperature lead-free soldering. This flux leaves minimal residue, so there’s no cleanup required. It doesn’t need to be used quickly; it can sit for hours without degrading.

	Container		Tip
For Joining	Size, fl. oz.	Type	Shape	Dia.	Form	Cleanup Method	Specs. Met		Each
Copper, Indium, Indium Alloy	4/5	Syringe	Needle	0.096"	Liquid	No Clean	IPC J-STD-004	0000000	000000
Copper, Bismuth	4/5	Syringe	Needle	0.096"	Liquid	No Clean	IPC J-STD-004	0000000	00000