303-5 - Polyimide Film

DeWal Industries

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ADHESIVE TAPE FEATURES

Std Roll Length: 36.00 yards

ADHESIVE TAPE ADVANTAGES

ADHESIVE TAPE APPLICATIONS

Designed for high temperature masking applications
Protecting printed circuit board gold finger contacts during wave soldering
Meets class H requirements
Primarily used electrical applications including gold finger masking, insulation in transformers, coils, flat cables and high temperature harness wrapping

ADHESIVE TAPE MARKETS SERVED

Electrical

ADHESIVE TAPE COLORS

GENERAL INFORMATION

303-5 is a 5 mil, polyimide film and silicone adhesive is designed for high temperature masking applications, including the protection of printed circuit board gold finger contacts during wave soldering. This product can also be used in electrical insulation applications meeting class H requirements. These tapes are primarily used electrical applications including gold finger masking, insulation in transformers, coils, flat cables and high temperature harness wrapping.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	Polyimide	5.00
Adhesive (unwind)	Silicone	1.50
Thickness (total)		6.50

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	20.00 oz/in
Adhesive Removable	Yes
Adhesive Clean Removable	Yes
Adhesive Repositionable	Yes
Adhesive Activation	Pressure
Tensile Strength	125.00 lbs/in
Elongation Percent	50.00%

SECONDARY PHYSICAL PROPERTIES

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	40°F
Minimum Service Temperature	0°F
Maximum Short-Term Temperature	500°F
Dielectric Strength	20000.00 volts

Adhesive Tape and Foam Converting Services

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.