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General Purpose Polyester/Silicone Tape

General Information
8951 is a 2.8mil, polyester tape, primarily used to break flash in composite bonding as well as splicing silicone and non-silicone coated paper and films. Silicone adhesive allows for high temperature applications.
Backing Adhesive
Liner Type
PET - Polyester Silicone 2.80 mil  
Adhesion to Steel
180° Peel
Adhesive Activation Tensile Strength Elongation Percent
30.00 oz/in Pressure 30.00 lbs/in 100.00%
Min Application
Min Service
Max Short-Term
Max Long-Term
40 °F 0 °F 425 °F  
Adhesive Tape Features
  • Designed to provide clean removal during masking operations involving high temperatures and pressure
  • Polyester film retains flexibility and thermal resistance to help reduce failures due to cracking
  • Abrasion, chemical and thermal resistance to help reduce failures due to backing deterioration
  • Silicone adhesive helps reduce failure due to softening, oozing, and adhesive transfer
Adhesive Tape Applications
  • Masking edges of overlap seams in metal bonding process where excess epoxy flows onto tape
  • Clean-up is complete upon tape removal
  • Cleanly removes from stainless steel, anodized aluminum and glass after a four-hour bake cycle at 350&degF
  • Holding parts or vacuum bags during bonding process
  • Splicing silicone treated materials, including paper, liners and films
  • One hour photo lab splicing tape
  • Electrical insulation tape
  • Circuit board masking
  • Masking parts in an anodizing process
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Transparent
Comparable products
Backing Adhesive Thickness Adhesion
 PET - Polyester   Silicone   2.80mil   30.00oz/in 

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.

Choose the surface energy of the exact surface that the adhesive will contact (e.g. if the part was painted metal, paint would be the surface energy).