Specialty Tapes - Metal Foil

Product	Tape Structure (Backing/Adhesive)	Backing Thickness mils (mm)	Total thickness mils (mm)	Adhesion to Steel oz./in. (N/100mm)	Tensile Strength lbs./in. (N/100mm)	Elongation at Break %	Temperature Range °F(°C)	Comments
ASTM Test Method:		D-3652	D-3652	D-3330	D-3759	D-3759
Premium Performance Aluminum Foil Tapes
425	Aluminum/Acrylic	2.8 (0.07)	4.6 (0.12)	47 (51)	30 (525)	8	-65 to 300°F (-54 to 149°C )	Most versatile aluminum tape.1, 2, 3, 4
427	Aluminum/Acrylic	2.8 (0.07)	4.6 (0.12)	50 (55)	30 (525)	8	-65 to 300°F (-54 to 149°C )	Linered version 425 tape.2, 3, 4
431	Aluminum/Acrylic	1.9 (0.05)	3.1 (0.08)	41 (45)	19 (338)	5	-65 to 300°F (-54 to 149°C )	Conformable aluminum tape.3
433	Aluminum/Silicone	2.0 (0.05)	3.6 (0.09)	40 (43.8)	20 (350)	3.5	-65 to 600°F (-54 to 316°C )	MIL-T-47014.3
433L	Aluminum/Silicone	2.0 (0.05)	3.5 (0.09)	38 (42)	20 (350)	3.5	-65 to 600°F (-54 to 316°C )	Linered 433 tape.3
438	Aluminum/Acrylic	5.0 (0.13)	7.2 (0.18)	43 (47)	59 (1033)	10	-65 to 300°F (-54 to 149°C )	Thickest aluminum tape.3
439	Aluminum/Acrylic	1.9 (0.05)	3.1 (0.08)	41 (45)	18 (315)	3	-65 to 300°F (-54 to 149°C )	Linered version 431 tape.3
HVAC & Refrigeration Aluminum Foil Tapes
3311	Aluminum/Rubber	2.0 (0.05)	3.6 (0.09)	90 (98)	17 (298)	3	-10 to 180°F (-54 to 149°C )	UL 723 listed, linered.
3326	Aluminum/Acrylic	2.3 (0.06)	4.4 (0.11)	70 (77)	25 (438)	4	-20 to 250°F (-29 to 121°C )	UL 181A-P & 181B-FX listed, printed backing, linered.
General Purpose Aluminum Foil Tapes
1449	Aluminum/Acrylic	1.4 (0.04)	2.6 (0.07)	37 (40)	19 (333)	11	-25 to 250°F (-32 to 121°C )	Thinnest aluminum tape for added conformability.
1450	Aluminum/Rubber	1.9 (0.05)	3.1 (0.08)	114 (125)	19 (333)	6	-40 to 200°F (-40 to 93°C )	High initial tack on low energy surfaces.
Aluminum Foil Reinforced Tapes
363	Aluminum/Glass Cloth/Silicone	3.4 (0.09)	7.3 (0.19)	67 (73)	135 (2364)	7	-65 to 600°F (-54 to 316°C )	Highest temperature metal tape.3
1430	Aluminum/Nonwoven/Acrylic	5.0 (0.13)	5.5 (0.14)	22 (24)	19 (333)	12	-65 to 300°F (-54 to 149°C )	Flexible wrapping tape.
Lead Foil Tapes
420	Lead/Rubber	4.7 (0.12)	6.8 (0.17)	45 (49)	20 (350)	12	-60 to 225°F (-54 to 106°C )	Linered plating tape.
421	Lead/Rubber	4.0 (0.10)	6.3 (0.16)	31 (34)	15 (263)	14	-60 to 225°F (-54 to 106°C )	Unlinered plating tape.
1 Can be qualified to L-T-80B,MIL-T-23397B II 2 Meets U.L.723,Class L File R 7311 3 F .A.R.25.853 (a) 4 Meets U.L.746C File E122798