Specification	3M 438 3" X 3"-25

Adhesive	Acrylic
Backing	Aluminum Foil
Carrier	Aluminum Foil
Color	Silver
Length	3 "
Shelf Life	24 Months
Shelf Life Start	Date of Manufacture
Storage/Refrigeration Temperature (Maximum)	80 °F
Storage/Refrigeration Temperature (Minimum)	60 °F
Tape Type	Aluminum Foil
Temperature Range (Max)	300 °F
Temperature Range (Min)	-65 °F
Thickness	0.0072 in
Thickness - Adhesive	0.0022 in
Thickness - Backing, Carrier	0.005 in
Width	3 in

438 Series

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Part	Shelf Life	Shelf Life Start	Storage/Refrigeration Temperature (Maximum)	Storage/Refrigeration Temperature (Minimum)	Thickness	Tape Type	Width	Temperature Range (Min)	Temperature Range (Max)	Backing	Carrier	Length (ft)	Length (yd)	Thickness - Adhesive	Color	Thickness - Backing, Carrier	Adhesive	Length	Usage
3M (TC) 3M 438 3.78" X 60YD	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	3.78 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil	180 ft	60 yd	0.0022 in	Silver	0.005 in	Acrylic
3M (TC) 438-7-7.25(25)	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	7 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic	7.25 in
3M (TC) 3M 438 CIRCLE-0.563"-2000	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	0.56 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic
3M (TC) 3M 438 CIRCLE-0.625"-2000	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	0.63 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic
3M (TC) 3M 438 8" X 10.5"-25	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	8 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic	10.5 in
3M (TC) 438-1.5-4(100)	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	1.5 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic	4 in
3M (TC) 438SQ-12(6)	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	12 in	-65 °F	300 °F	Aluminum	Aluminum			0.0022 in	Silver	0.005 in	Acrylic	12 in	Thermally Conductive
3M (TC) 3M 438 8" X 9.25"-25	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	8 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil			0.0022 in	Silver	0.005 in	Acrylic	9.25 "
3M (TC) 3M 438 1.625" X 60YD	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	1.63 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil	180 ft	60 yd	0.0022 in	Silver	0.005 in	Acrylic
3M (TC) 438-1.125-60	24 Months	Date of Manufacture	80 °F	60 °F	0.0072 in	Aluminum Foil	1.13 in	-65 °F	300 °F	Aluminum Foil	Aluminum Foil	180 ft	60 yd	0.0022 in	Silver	0.005 in	Acrylic

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3M 438 3" X 3"-25 | Datasheet