Aluminum Soldering Flux | McMaster-Carr

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For Joining

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Container Net Weight

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Military Specification

Cleanup Method

Container Size

Maximum Temperature

REACH

RoHS

Minimum Application Temperature

650° F

Color

Gray

White

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

1C995

EAR99

Maximum Application Temperature

800° F

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9 Products

Soldering Flux for Aluminum

Solder aluminum to itself, copper, or brass. This flux paste is easier to apply precisely than liquid flux. Simply wash the flux residue away with water.

Container Size, fl. oz.	Form	Cleanup Method	Specifications Met		Each
4	Paste	Water	DOD 1866	000000	000000

Soldering Flux for High-Temperature Aluminum

Often used to solder aluminum to difficult-to-solder metal such as stainless steel and nickel, this flux works in applications up to 800° F. You can also use it with a torch in low-temperature brazing applications. Mix the powder with methanol before use.

	Container
For Joining	Size	Type	Form	Cleanup Method	Application Temperature Range, °F		Each
Aluminum	4 oz.	Jar	Powder	Water	650° to 800°	0000000	000000
Aluminum	8 oz.	Jar	Powder	Water	650° to 800°	0000000	00000
Aluminum	1 lbs.	Jar	Powder	Water	650° to 800°	0000000	000000

No-Clean Brazing Flux for Joining Aluminum to Copper

Clean and prepare surfaces before joining aluminum to copper. With minimal residue, this flux does not require cleanup.

	Container
Max. Temperature, °F	Net Weight	Type	Color	Form	Cleanup Method		Each
For Joining Aluminum, Copper
985°	4 oz.	Jar	Gray	Paste	No Clean	0000000	000000
985°	8 oz.	Jar	Gray	Paste	No Clean	0000000	00000
985°	1 lbs.	Jar	Gray	Paste	No Clean	0000000	000000

Brazing Flux for Aluminum

Clean and prepare surfaces for brazing jobs that require you to join aluminum.

	Container
Max. Temperature, °F	Net Weight, oz.	Type	Color	Form	Cleanup Method		Each
For Joining Aluminum
1280°	6	Jar	White	Powder	Water	0000000	000000
1280°	12	Jar	White	Powder	Water	0000000	00000