Solder Stop Masks | McMaster-Carr

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121 Products

Solder Mask

Shield circuit boards from flux, solder, conformal coatings, and high temperatures. Heat resistant up to 640° F, solder mask is most often used to protect open through-holes and components during wave soldering. Solder mask can also act as a short-term adhesive to keep parts in place when you’re soldering a two-sided SMT circuit board. An alternative to masking tapes that require cutting to shape, solder mask flows easily into small spaces and doesn’t leave a residue when removed.

Wash-Away Removal—Choose wash-away solder mask if you use a water-based cleaning process such as a batch or in-line cleaning system.

Peel-Away Removal—Choose peel-away solder mask if you use a solvent-based cleaning process or don’t clean your circuit boards.

15 min. Overall Dry Time—Solder mask with a 15-min. overall dry time cures more evenly than peel-away solder mask with a one-hr. overall dry time, so it can be applied in thick layers. It's also nonflammable.

1 hr. Overall Dry Time—Peel-away solder mask with a one-hr. overall dry time produces low odors because it doesn’t contain ammonia. Wash-away solder mask with a one-hr. overall dry time is nonflammable. It's not completely water soluble, so it can’t be used in closed-loop cleaning systems.

2 hr. Overall Dry Time—Solder mask with a two-hr. overall dry time is completely water soluble for use in closed-loop cleaning systems. It's slightly flammable.

Cannot Be Sold To—Product regulations restrict sales to the listed jurisdictions/areas.

			Dry Time
	Container Size, fl. oz.	Consistency	Touch, min.	Overall	Max. Temp., ° F	Mil. Spec.	For Use On	Color	Features	Cannot Be Sold To		Each
Wash-Away Removal



		8	Gel	60	1 hr.	640	MIL-STD-2000	Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, Silver	Blue	—	Outside United States and Canada	2533N3	000000


		8	Gel	60	2 hr.	640	—	Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, Silver	Red	Closed-Loop Compatible	Outside United States and Canada	2533N4	00000


		Peel-Away Removal



				8	Gel	15	15 min.	640	MIL-STD-2000	Aluminum, Brass, Steel, Stainless Steel, Titanium, Gold, Silver	White	—	Outside United States and Canada	2533N2	00000


				8	Gel	60	1 hr.	640	MIL-STD-2000	Aluminum, Brass, Copper, Steel, Stainless Steel, Titanium, Gold, Silver	Red	—	Outside United States and Canada	2533N1	00000

Conformal Coatings

Pen

These coatings protect circuit boards and other electronics from moisture, dust, and static. They’re thinner than potting compounds, so they flow into the smallest contours of your components to cover them completely. Apply these coatings without needing a potting box or other container. You can remove them if necessary.

Acrylic Plastic—Acrylic plastic coatings are our thinnest option, so they’re the easiest to apply. They’ll also come off the easiest when you have to rework or repair your component—just use a solvent. These coatings dry in a day or less.

Silicone/Acrylic Plastic—Silicone/acrylic plastic coatings combine the flexibility and temperature resistance of silicone with the thinness of acrylic for easy application. Use them in the environments you’d use silicone coatings, such as high-vibration and high-temperature areas.

Pen—Coatings in a pen are best for precise application. Use them to repair scratches and chips on components, or touch up areas you missed while coating. They’re also good for blocking off areas you don’t want solder to flow into.

Ultraviolet—Coatings with ultraviolet visibility show up under a black light, so you can easily check if you’ve applied them evenly.

IPC-CC-830—Coatings that meet IPC-CC-830 are certified for use on circuit boards.

UL 94 V-0—Coatings that meet UL 94 V-0 have passed a test for flame retardance.

Cannot Be Sold To—Coatings that cannot be sold to the listed areas are restricted due to VOCs (volatile organic compounds) regulations.

		Dry Time					Temperature, ° F
	Container Size, fl. oz.	Touch, min.	Overall, hr.	Color	Visibility	Dielectric Strength, V/mil	Min.	Max.	Specs. Met	Flammability Rating	For Use On	Cannot Be Sold To		Each
Acrylic Plastic







				Pen—0.03" Diameter Tip

				0.16	10	24	Black	Ultraviolet	1,000	-85	255	—	—	Plastic	Canada	6801A207	000000


				0.16	10	24	Clear	Ultraviolet	1,000	-85	255	IPC-CC-830	UL 94 V-0	Plastic	Canada	6801A208	00000
				0.16	10	24	Green	Ultraviolet	1,000	-85	255	—	—	Plastic	Canada	6801A209	00000
				0.16	10	24	White	Ultraviolet	1,000	-85	255	—	—	Plastic	Canada	6801A211	00000


				Silicone/Acrylic Plastic







								Pen—0.03" Diameter Tip

								0.16	10	48	Clear	Ultraviolet	1,000	-40	390	—	UL 94 V-0	Plastic	Canada	6801A206	00000

Masking Tape Shapes for Electronics

Use these convenient cut shapes to mask holes, fastener heads, and small areas while soldering. This polyimide tape dissipates heat and is an excellent electrical insulator.

Discs


	No Spool	Cardboard Spool

Dia.	Overall Thk.	Material	Adhesive Material	Temp. Range, ° F	Spool Material	Voltage Rating, V	Mil. Spec.	Specs. Met	Color	Pkg. Qty.		Pkg.
1/4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	—	6,000	MIL-P-46112	UL 510	Amber	100	77595A31	000000
1/4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	1,000	77595A13	00000
3/8"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	—	6,000	MIL-P-46112	UL 510	Amber	100	77595A32	00000
3/8"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	1,000	77595A15	00000
1/2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	—	6,000	MIL-P-46112	UL 510	Amber	100	77595A33	00000
1/2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	1,000	77595A17	00000
3/4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	—	6,000	MIL-P-46112	UL 510	Amber	50	77595A34	00000
3/4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	500	77595A22	00000
1"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	—	6,000	MIL-P-46112	UL 510	Amber	50	77595A35	00000
1"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	250	77595A26	00000
1 1/2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	250	77595A611	00000
2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	250	77595A612	00000
4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	100	77595A613	00000
5"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	Cardboard	6,000	MIL-P-46112	UL 510	Amber	100	77595A614	000000

Rings


	No Spool

OD	ID	Overall Thk.	Material	Adhesive Material	Temp. Range, ° F	Voltage Rating, V	Specs. Met	Color	Pkg. Qty.		Pkg.
1/2"	5/32"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	45	77595A51	000000
1"	13/32"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	25	77595A52	00000
1 3/4"	7/8"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	17	77595A53	00000

Rectangles


	No Spool

Wd.	Lg.	Overall Thk.	Material	Adhesive Material	Temp. Range, ° F	Voltage Rating, V	Specs. Met	Color	Pkg. Qty.		Pkg.
1/2"	1/2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	64	77595A41	000000
3/4"	3/4"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	40	77595A42	00000
1"	1"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	25	77595A43	00000
2"	2"	0.0025"	Kapton® Polyimide	Silicone	-100 to 500	8,000	UL 510	Amber	15	77595A44	00000

Super-Thin Masking Tape for Electronics

At half the thickness of our other masking tape for electronics, this polyimide tape conforms easily. Use it to mask components while soldering or to wrap and splice cables. It dissipates heat and is an excellent electrical insulator.

						Temp., ° F
Wd.	Lg., ft.	Overall Thk.	Material	Adhesive Location	Adhesive Material	Min.	Max.	Tensile Strength, lbf/in. wd.	Adhesion to Steel, ozf/in. wd.	Voltage Rating, V	Color	Spool Material	Spool ID		Each



	1/4"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N11	000000


	1/2"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N12	00000
	3/4"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N15	00000
	1"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N13	00000
	1 1/2"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N16	00000
	2"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N14	00000
	3"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N17	000000
	4"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N18	000000
	6"	108	0.0015"	Polyimide	One Side	Silicone	-40	400	10	20	4,000	Amber	Plastic	3"	1754N19	000000

Antistatic Masking Tape for Electronics

A coating on this polyimide tape minimizes ESD (electrostatic discharge) when unwound from the roll and also during removal.

Acrylic Plastic Adhesive—Use tape with acrylic adhesive where silicone contamination is a concern, such as surfaces to which you’re applying paint or other adhesives.

								15 ft. Long		108 ft. Long
	Wd.	Overall Thk.	Material	Temp. Range, ° F	Voltage Rating, V	Specs. Met	Color		Each		Each
Acrylic Plastic Adhesive



		1/2"	0.0026"	Polyimide	-40 to 355	6,000	UL 510	Amber	———	0	7639A31	000000


		3/4"	0.0026"	Polyimide	-40 to 355	6,000	UL 510	Amber	———	0	7639A32	00000
		1"	0.0026"	Polyimide	-40 to 355	6,000	UL 510	Amber	———	0	7639A33	00000
		2"	0.0026"	Polyimide	-40 to 355	6,000	UL 510	Amber	———	0	7639A34	00000


		Silicone Adhesive



				1/4"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A61	00000	7639A71	00000


				3/8"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A19	0000	7639A11	00000
				1/2"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A62	00000	7639A72	00000
				5/8"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A22	00000	7639A12	00000
				3/4"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A63	00000	7639A73	00000
				7/8"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A23	00000	7639A13	00000
				1"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A64	00000	7639A74	00000
				1 1/2"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A24	00000	7639A14	00000
				2"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A65	00000	7639A75	00000
				3"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A25	00000	7639A15	000000
				4"	0.0026"	Polyimide	-100 to 500	6,000	—	Amber	7639A26	00000	7639A16	000000

Masking Tape for Electronics

Use this tape to wrap and splice cables or to mask components while soldering. It dissipates heat and is an excellent electrical insulator.

Acrylic Plastic Adhesive—Tape with acrylic adhesive resists solvents and chemicals, so it’s often used in labs.

Silicone Adhesive—Tape with silicone adhesive withstands higher temperatures than tape with acrylic adhesive. It holds fast on engines, generators, and other machines that produce heat.

ASTM E595—Tape that meets ASTM E595, a standard set by NASA, will produce almost no volatile emissions, even in a high vacuum. It's a great choice for use around your most sensitive electronics.

									3 ft. Long		15 ft. Long		108 ft. Long
	Wd.	Overall Thk.	Temp. Range, ° F	Voltage Rating, V	Dielectric Strength, V/mil	Mil. Spec.	Specs. Met	Color		Each		Each		Each
Acrylic Plastic Adhesive







				Kapton® Polyimide

				1/4"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A731	00000	———	0


				1/4"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A61	000000
				3/8"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A732	0000	———	0
				3/8"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A62	00000
				1/2"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A733	0000	———	0
				1/2"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A63	00000
				3/4"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A734	00000	———	0
				3/4"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A64	00000
				1"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A735	00000	———	0
				1"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A65	00000
				2"	0.0025"	-20 to 350	7,000	—	—	—	Amber	———	0	7648A736	00000	———	0


				2"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A66	000000
				4"	0.0025"	-20 to 350	7,000	—	—	—	Amber	7648A861	000000	7648A48	00000	———	0
				6"	0.0025"	-20 to 350	7,000	—	—	—	Amber	7648A863	00000	7648A49	000000	———	0
				6"	0.0025"	-20 to 350	7,000	2,800	—	ASTM E595	Amber	———	0	———	0	7648A69	000000


				Silicone Adhesive







								Kapton® Polyimide

								1/4"	0.0025"	-40 to 500	6,000	—	—	UL 510	Amber	———	0	———	0	7648A36	00000


								1/4"	0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A711	0000	———	0
								1/4"	0.0035"	-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A721	0000	———	0
								1/4"	0.0035"	-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A46	00000
								3/8"	0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A712	0000	———	0
								3/8"	0.0025"	-40 to 500	6,000	2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A37	00000
								3/8"	0.0035"	-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A722	00000	———	0
								3/8"	0.0035"	-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A47	00000
								1/2"	0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A713	0000	———	0
								1/2"	0.0025"	-40 to 500	6,000	2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A32	00000
								1/2"	0.0035"	-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A723	00000	———	0


								1/2"	0.0035"	-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A42	00000
								3/4"	0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A714	00000	———	0
								3/4"	0.0025"	-40 to 500	6,000	2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A33	00000
								3/4"	0.0035"	-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A724	00000	———	0
								3/4"	0.0035"	-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A43	00000
								1"	0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A715	00000	———	0
								1"	0.0025"	-40 to 500	6,000	2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A34	00000
								1"	0.0035"	-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A725	00000	———	0
								1"	0.0035"	-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A44	000000
1 1/2"								0.0025"	-40 to 500	6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A111	00000	———	0


1 1/2"	0.0035"							-100 to 500	10,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A112	00000	———	0
1 1/2"	0.0035"							-100 to 500	10,000	2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A171	000000
2"	0.0025"	-40 to 500						6,000	—	MIL-P-46112	UL 510	Amber	———	0	7648A716	00000	———	0
2"	0.0025"	-40 to 500	6,000					2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A35	000000
2"	0.0035"	-100 to 500	10,000					—	MIL-P-46112	UL 510	Amber	———	0	7648A726	00000	———	0
2"	0.0035"	-100 to 500	10,000					2,850	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A45	000000
4"	0.0025"	-40 to 500	6,000					—	MIL-P-46112	UL 510	Amber	7648A821	00000	7648A717	00000	———	0
4"	0.0025"	-40 to 500	6,000					2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A81	000000
4"	0.0035"	-100 to 500	10,000					—	MIL-P-46112	UL 510	Amber	7648A841	00000	7648A727	000000	———	0
4"	0.0035"	-100 to 500	10,000					4,000	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A91	000000


6"	0.0025"	-40 to 500	6,000					—	MIL-P-46112	UL 510	Amber	7648A822	00000	7648A718	000000	———	0
6"	0.0025"	-40 to 500	6,000					2,600	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A82	000000
6"	0.0035"	-100 to 500	10,000					—	MIL-P-46112	UL 510	Amber	7648A842	00000	7648A728	000000	———	0
6"	0.0035"	-100 to 500	10,000					4,000	MIL-P-46112	UL 510	Amber	———	0	———	0	7648A92	000000