Flux Paste | McMaster-Carr

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	Form Form	Show

Paste

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Paste

Liquid

	For Joining For Joining

	Container Type Container Type

Jar

Syringe

	Container Size Container Size

	Cleanup Method Cleanup Method

Water

	Specifications Met Specifications Met

	Color Color

	White
	Black

	For Use With For Use With

Beverage

Food

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

1600° F

1700° F

	Tip Shape Tip Shape

Needle Point

	Tip Diameter Tip Diameter

0.031"

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12 Products

Soldering Flux Paste for Plumbing

This flux meets NSF/ANSI Standard 61 for drinking water. Do not use it on magnesium or electronics.

For Joining	Container Size, fl. oz.	Form	Cleanup Method	Environment	Specifications Met		Each
Steel, Copper, Brass, Zinc	2	Paste	Water	Food Industry	MIL-F-4995 Type II; NSF/ANSI 61	0000000	00000
Steel, Copper, Brass, Zinc	4	Paste	Water	Food Industry	MIL-F-4995 Type II; NSF/ANSI 61	0000000	0000
Steel, Copper, Brass, Zinc	16	Paste	Water	Food Industry	MIL-F-4995 Type II; NSF/ANSI 61	0000000	00000

Nokorode Soldering Flux

Protect the solder joint from corrosion with this flux paste. Do not use it on magnesium or electronics.

For Joining	Container Size, fl. oz.	Form	Cleanup Method	Specifications Met		Each
Nickel Alloys, Copper, Zinc	1.69	Paste	Water	A-A-51145 Type IA; MIL-FS-6872; NSF/ANSI 61	000000	00000
Nickel Alloys, Copper, Zinc	16	Paste	Water	A-A-51145 Type IA; MIL-FS-6872; NSF/ANSI 61	000000	00000

Fast-Flushing Soldering Flux for Plumbing

This flux paste provides the fastest removal of flux from pipe lines. It meets NSF/ANSI 61 safety standards for use with drinking water systems. Do not use it on magnesium or electronics.

For Joining	Container Size, fl. oz.	Form	Cleanup Method	Specifications Met		Each
Steel, Copper, Brass, Zinc	4	Paste	Water	ASTM B813, NSF/ANSI 61	00000000	000000

Soldering Flux for Aluminum

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

Easy-Clean Soldering Flux for Electronics

Syringe

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

	Container		Tip
For Joining	Size	Type	Shape	Diameter	Form	Cleanup Method	Specifications Met		Each
Nickel Alloys, Copper, Brass	0.3 fl. oz.	Syringe	Needle Point	0.031"	Paste	Water	IPC J-STD-004	000000	000000

Brazing Flux

Use this flux with silver brazing alloys to clean and prepare surfaces. Residue washes off with hot water. Do not use it with titanium.

1/2 lbs.
Max. Temperature, ° F	Color	Form	Cleanup Method	Specifications Met		Each
For Joining Brass, Bronze, Copper, Stainless Steel, Steel
1600°	White	Paste	Water	AWS A5.31-92, Type FB3A; Fed. Spec. O-F-499, Type B; SAE AMS3410	000000	00000
1 lbs.
For Joining Brass, Bronze, Copper, Stainless Steel, Steel
1600°	White	Paste	Water	AWS A5.31-92, Type FB3A; Fed. Spec. O-F-499, Type B; SAE AMS3410	000000	00000

Brazing Flux for Nickel Alloys and Carbide

Use this flux with silver brazing alloys to clean and prepare surfaces. It is boron modified and residue washes off with hot water. Do not use it with titanium.

1/2 lbs.
Max. Temperature, ° F	Color	Form	Cleanup Method	Specifications Met		Each
For Joining Carbide, Nickel Alloys
1700°	Black	Paste	Water	AWS A5.31-91, Type FB3C; Fed. Spec. O-F-499, Type B; SAE AMS3411	0000000	000000
1 lbs.
For Joining Carbide, Nickel Alloys
1700°	Black	Paste	Water	AWS A5.31-91, Type FB3C; Fed. Spec. O-F-499, Type B; SAE AMS3411	0000000	00000