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DeWal Industries 904-1
Polyester Film Electrical Insulating Tape

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.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
PET - Polyester Silicone 2.50 mil  

Adhesion to Steel
180° Peel		 Adhesive Activation Tensile Strength Elongation Percent
30.00 oz/in Pressure 20.00 lbs/in 100.00%

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
40 °F 0 °F 310 °F  
Adhesive Tape Features
  • Releases cleanly
Adhesive Tape 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
Adhesive Tape Markets Served
Adhesive Tape Colors

Comparable products

DeWal Industries 904-1 View Datasheet
Polyester Film Electrical Insulating Tape
Backing Adhesive Thickness Adhesion
 PET - Polyester   Silicone   2.50mil   30.00oz/in 
3M 1290 View Datasheet
Printed Circuit Board Electroplating Mask
Backing Adhesive Thickness Adhesion
 PET - Polyester   Rubber   2.20mil   19.00oz/in 
Ideal Tape Co. Inc. 9148 View Datasheet
Polyester Film Electrical Insulating Tape
Backing Adhesive Thickness Adhesion
 PET - Polyester   Silicone   2.50mil   30.00oz/in 

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