Knowra Adhesive tape Adhesive tape Adhesive tape is a flexible strip or sheet coated with adhesive that bonds, seals, holds, or insulates surfaces. Its backing and adhesive are designed to suit particular materials and conditions.
Pressure-sensitive adhesive : An adhesive that bonds to a surface under light pressure without requiring heat, water, or solvent activation. Most everyday tapes rely on this adhesive type to stick immediately when pressed.
Backing material : The flexible carrier that supports an adhesive coating and gives a tape its physical properties. Backing controls tape strength, flexibility, stretch, and resistance to the environment.
Duct tape : A cloth-backed pressure-sensitive tape with a polyethylene coating, used for repairs, bundling, and sealing. Its reinforced backing and aggressive adhesive make it a familiar repair tape.
Liquid adhesive : A bonding material applied as a fluid that hardens or sets to join surfaces. Unlike tape, it is spread or dispensed before bonding and may require curing.
Adhesion : The attraction between unlike materials where their surfaces meet. It describes the bond between tape adhesive and the surface it contacts.
Acrylic adhesive : An adhesive based on acrylic polymers, valued for weathering resistance and stable bonding. Acrylic formulations are common where long-term aging and outdoor exposure matter.
Masking tape : A paper-backed tape designed for temporary masking during painting and finishing. It is designed to hold during work and peel away with limited residue.
Hot-melt adhesive : A thermoplastic adhesive applied while molten that bonds as it cools. Some tapes use hot-melt adhesive, but hot-melt bonding also works without a tape backing.
Cohesion : The attraction that holds together molecules or parts of the same material. The adhesive must hold together internally when tape is peeled away.
Rubber-based adhesive : An adhesive formulated from natural or synthetic rubber, often offering high initial tack. Rubber adhesives explain the quick grab of many general-purpose tapes.
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