904-1 - Polyester Film Electrical Insulating Tape

DeWal Industries

E-Mail this datasheet

FEATURES

Std Roll Length: 72.00 yards

ADVANTAGES

Releases cleanly

APPLICATIONS

Transparent for applications where optical clarity is an issue
Used primarly in masking metal parts during bonding or mild acid etching as electrical insulation
Splicing tape for silicone liners and paper
Epoxy bonding of aircraft parts

MARKETS SERVED

Electrical
Optical
Aerospace

COLORS

GENERAL INFORMATION

904-1 is a 2.5 mil, polyester film coated with silicone adhesive. The silicone will release cleanly. It is transparent for applications where optical clarity is an issue. 904-1 is used primarly in masking metal parts during bonding or mild acid etching as electrical insulation, as splicing tape for silicone liners and paper, and in the epoxy bonding of aircraft parts.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	PET - Polyester	1.00
Adhesive (unwind)	Silicone	1.50
Thickness (total)		2.50

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	30.00 oz/in
Adhesive Activation	Pressure
Tensile Strength	20.00 lbs/in
Elongation Percent	100.00%
Testing Info: Adhesion ASTM-D 1000; Tensile, Elongation ASTM-D 3759; Dielectric Strength ASTM-D 149

SECONDARY PHYSICAL PROPERTIES

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	40°F
Minimum Service Temperature	0°F
Maximum Short-Term Temperature	310°F
Dielectric Strength	4500.00 volts

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.