The Tape Lab has a vast knowledge of tapes and flexible materials to help all of its customers find the right answers to their complex issues.
About Industrial Tape
A lot of people ask: What is Pressure Sensitive Tape? The key differentiator of a pressure sensitive tape from other types of adhesives is that no activation by water, solvent, or heat is necessary to exert a strong adhesive force towards diverse materials such as paper, glass, wood, plastic, or metal. The Pressure Sensitive Tape Council (PSTC) defines Pressure Sensitive Tape as a continuous flexible strip of cloth, paper, metal or plastic coated on one or both sides with a permanently tacky adhesive at room temperature which will adhere to a variety of surfaces with light pressure (finger pressure) with no phase change (liquid to solid) and usually on a roll. The Tape Lab also offers many varieties of flexible materials without PSA applied to them like Films (PE, PET, PP, PC, TPE), foams (PE, PVC, Silicone, PU), Woven and non-woven fabrics and vinyl.
Pressure sensitive adhesives work as a result of three unique properties: Adhesion, Cohesion, and Tack. These three properties balance each other out and can’t work without one another, meaning that it is impossible to have a tape with 100% of each. Adhesion is the bonding strength of adhesive to substrate. Cohesion is the inner strength of the adhesive. Tack is the immediate grip of the tape (adhesive) to substrate (object).
When defining a type of tape it comes down into its components. There are typically three components: the adhesive, the carrier, and the release liner (or backing). Not all tapes will feature all the components. There are also three standard compositions of tape: adhesive transfer, single coated tape, and double coated tape.
Adhesive Transfer tapes consist of an unsupported adhesive on a release liner.
The release liner is commonly a paper or film that has been coated on both sides with a silicone release agent. Adhesive transfer tapes can come as a rubber, acrylic or silicone adhesive. Examples of adhesive transfer tapes include tapes for envelope & bag sealing, graphic attaching, laminating two indifferent substrates and splicing.
Single Coated tapes feature an adhesive applied to only one side of a carrier.
Some Single coated tapes come on a liner and some are self wound. The carrier can be any flexible material, including paper, polymeric film, foil, foam, nonwoven/woven cloth. If the single coated tape is self-wound it will have a release coating applied to the back side of the carrier. There are also single-coated tapes, such as filament tape & duct tape that feature reinforcements of woven cloth or glass strands to keep them stable during the process of making the tape. Examples of single coated tapes are boob tape, stick to skin tapes, electrical tape, masking tape, carton sealing/packaging tape.
Double Coated tapes are constructed with adhesive applied or coated on both sides of a carrier material.
The tape is then wound with a release liner, commonly paper or a film that has been coated on both sides with a silicone release agent. There are a variety of carriers used to make double coated tapes. Most flexible materials can be used as a carrier. Some examples of carriers are: a polymeric film (PET, PE, PP, TPE). The adhesive (acrylic, rubber, or silicone) may be the same or different on either side of the carrier, as well as offering different coating thicknesses (also called coat weights). Some examples of double coated tapes are bonding tapes, mounting tapes, VHB (acrylic foam tapes) tapes, carpet tapes and hair tapes.