42, High Temperature Anti-Static Masking, 3M, adhesive tape datasheet

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3M 42
High Temperature Anti-Static Masking

General Information

A 2.2 mil. anti-static masking tape used to mask, hold or protect sensitive electronic components. 42 tape represents a breakthrough in PSA tape technology. This product may be used at static safeguarded workstations as part of your total static control program. When 42 tape is used in high temperature applications, it should be removed by pulling back over itself 180°. The substrate should also be allowed to cool to room temperature. This tape neutralizes triboelectrically generated charges at the instant of separation of surfaces. It also generates very low levels of static charge, even in dry conditions of 10% R.H. 42 tape is opaque with gold tint for easy indentification and differentiation for standard high temperature tapes. Plastic anit-static cores are available to minimize particulate contamination in clean work areas.

Backing	Adhesive (unwind)	Thickness (total)	Liner Type (outer)
Polyimide	Acrylic	2.20 mil

Adhesion to Steel 180° Peel	Adhesive Activation	Tensile Strength	Elongation Percent
15.00 oz/in	Pressure	28.00 lbs/in

Min Application Temp	Min Service Temp	Max Short-Term Temp	Max Long-Term Temp
40 °F	0 °F	500 °F

Adhesive Tape Features

1.2 mil. water based acrylic adhesive
1.0 mil. polyimide backing
Passes contact corrosiveness to copper, aluminum, stainless steel, silver, tin lead, and kovar
Total mass loss (TML): 1.6%
Collected volatile condensable material (CVCM): 0.1%
Static charge when removed from roll: 20volts at 10%R.H and 5volts at 50%R.H
Static charge when removed from stainless steel: 50volts at 10%R.H and 5volts at 50%R.H
Surface resistance: 1 x 10 to the 5th power/ 1 x 10 to the 11th power
Unwind force: 30oz./in.
Eliminates ESD as a potential source of damage
Increases production yields
Complies with E.I.A Standard 625 which calls for less than 200volts within 12in. of a PCB
No residue after normal removal
No need for solvent cleaning
Easy identification and differentiation from standard high temperature tapes
Reliable backing
Clean room applications are possible
PCB's can be masked without fear of corrosion

Adhesive Tape Applications

Mask gold fingers and other components populating the board
Wave solder, dip and drag solder
Hand-soldering

Adhesive Tape Markets Served

Adhesive Tape Colors

Gold

Comparable products

3M 42

High Temperature Anti-Static Masking

Backing	Adhesive	Thickness	Adhesion
Polyimide	Acrylic	2.20mil	15.00oz/in

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The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.