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PC621
Cloth/Duct Tape



General Information
PC621 is a 11.5 mil, contractor grade, cloth/duct tape. It is primarily used for holding, seaming and sealing HVAC sheet metal and flex ducts, exhaust vents and preformed insulation. It is also used in industrial holding, splicing, protecting and packaging, asbestos abatement to hold and splice poly film and other uses requiring the physical characteristics and benefits of this tape.
Backing Adhesive
(unwind)
Thickness
(total)
Liner Type
(outer)
Polyethylene Coated Cloth Rubber 11.50 mil  
Adhesion to Steel
180° Peel
Adhesive Activation Tensile Strength Elongation Percent
50.00 oz/in Pressure 27.00 lbs/in 10.00%
Min Application
Temp
Min Service
Temp
Max Short-Term
Temp
Max Long-Term
Temp
55 °F 55 °F 200 °F  
Adhesive Tape Features
  • Waterproof backing
  • Excellent conformability
  • Excellent stretch
  • Excellent tensile strength
  • High tack and adhesion
  • Easy unwind for usage in tight work areas and does not twist or curl during applications
  • Designed for demanding HVAC applications and industrial uses
  • Is also available in Silver Printed color
Adhesive Tape Applications
  • Holding, seaming and sealing HVAC sheet metal and flex ducts, exhaust vents and preformed insulation
  • Industrial holding, splicing, protecting and packaging
  • Asbestos abatement to hold and splice poly film
  • Other uses requiring the physical characteristics and benefits of this tape.
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Black
  • Silver
Comparable products
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   11.50mil   50.00oz/in 
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   12.00mil   45.00oz/in 
Backing Adhesive Thickness Adhesion
 Vinyl Coated Cloth      8.20mil   oz/in 
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   12.00mil   60.00oz/in 
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   11.00mil   65.00oz/in 
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   13.00mil   52.00oz/in 
Backing Adhesive Thickness Adhesion
 Polyethylene Coated Cloth   Rubber   11.80mil   39.00oz/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).