Cold-Shrink Tape | McMaster-Carr

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70HDT

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Fed. Spec. A-A-59163 Type I

Fed. Spec. A-A-59163 Type II

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19 Products

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Performance

High Voltage

Insulate the most demanding electrical connections

7 products

Arc Resistant

Protects against electrical arcs

2 products

Performance

High Temperature

Won't melt or degrade in temperatures as high as 500° F

12 products

Low Temperature

Stays flexible and secure in temperatures down to -100° F

7 products

High-Temperature Self-Fusing Silicone Electrical Tape


Standard Profile	Tapered Profile

Create long-lasting seals around electrical connections, even in hot, cold, or wet conditions. Made of silicone, this tape stands up to chemicals, temperature changes, and UV rays, making it a good choice for insulating wiring and components in outdoor and other harsh environments. It is self-fusing, so it sticks to itself as you layer it for a secure seal that keeps moisture out. Also known as cold-shrink tape.

Tapered Profile—Thickest in the middle and thinner at the edges. This shape ensures that when you apply partially overlapping layers, the thickness remains uniform for a smooth, even surface and consistent dielectric strength. The center guide eliminates guesswork to help you precisely align each wrap.

ASTM D495—Rated to protect against electrical arcs, which cause surface damage that can lead to short circuits or fires.

	Temp. Range, ° F	Voltage Rating, V	Specs. Met	Mil. Spec.	Choose a Color		Each
Standard Profile







	3M Scotch 70

	1"	30	0.012"	32 to 355	35,000	ASTM D495	Fed. Spec. A-A-59163 Type I	Gray	76455A35	000000




			Electrical Tape

			1/4"	36	0.01"	-65 to 500	4,000	UL 510	Fed. Spec. A-A-59163 Type I	Black, Clear, Gray, Red	7643A61	00000


			1/2"	54	0.01"	-85 to 500	10,000	UL 510	Fed. Spec. A-A-59163 Type I	Black, Clear, Gray, Red	7643A74	00000
			1"	10	0.012"	-85 to 500	12,000	UL 510	Fed. Spec. A-A-59163 Type I	Black, Clear, Gray, Red	7643A57	0000
			1"	30	0.012"	-85 to 500	12,000	UL 510	Fed. Spec. A-A-59163 Type I	Black, Clear, Gray, Red	7643A79	00000
			1"	36	0.02"	-85 to 500	15,000	UL 510	Fed. Spec. A-A-59163 Type I	Black, Clear, Gray, Red	7643A75	00000
			2 1/2"	15	0.08"	-65 to 500	35,000	UL 510	Fed. Spec. A-A-59163 Type I	Gray, Red	7643A58	00000


			Tapered Profile







							3M Scotch 70HDT

							1"	30	0.02"	32 to 355	35,000	ASTM D495	Fed. Spec. A-A-59163 Type II	Gray	7643A59	000000




									Electrical Tape

									1"	36	0.02"	-85 to 500	15,000	UL 510	Fed. Spec. A-A-59163 Type II	Black, Clear, Gray, Red	7643A71	00000


									1 1/2"	36	0.03"	-85 to 500	20,000	UL 510	Fed. Spec. A-A-59163 Type II	Black, Clear, Gray, Red	7643A72	00000
									2"	36	0.02"	-85 to 500	15,000	UL 510	Fed. Spec. A-A-59163 Type II	Black, Clear, Gray, Red	7643A76	00000
									2"	36	0.03"	-85 to 500	20,000	UL 510	Fed. Spec. A-A-59163 Type II	Black, Clear, Gray, Red	7643A73	00000

High-Voltage EPM Electrical Tape

Plastic Lined

Insulate high-voltage connections, such as splicing power lines or wrapping bus bars and motor leads. This tape is self-fusing, so it bonds to itself to form a tight, long-lasting seal. Made of EPM rubber, this tape dissipates heat and does not degrade in direct sunlight, helping your splices hold up over time.

Apply overwrapping tape (sold separately) for a stronger seal and extra electrical insulation.

Plastic Lined—Stays clean and dust-free until you need it. Peel away the plastic liner during application to keep dust and dirt sealed out.

132,000 V Rating—Engineered for long-distance power cables run overhead and underground, this tape withstands nearly double the voltage load of other high-voltage tapes.

				Temp., ° F
	Wd.	Lg., ft.	Overall Thk.	Min.	Max.	Color		Each
Plastic Lined







				132,000 V Rating

				3/4"	30	0.02"	-40	210	Black	7682A42	000000


				1"	10	0.02"	-40	210	Black	7682A41	00000
				1"	30	0.02"	-40	210	Black	7682A65	00000
				1 1/2"	30	0.02"	-40	210	Black	7682A43	00000
				2"	30	0.02"	-40	210	Black	7682A44	00000

Overwrapping Tape

		Each
3M Scotch Super 33+ Electrical Tape	76455A22	000000
Electrical Tape	7619A11	0000