Substrate characteristics
Adhesive tapes and films can be formulated to bond almost any material, or substrate. When considering a tape for your product, examine every aspect of the specific application. In addition to the adhesion and cohesion factors of the adhesive mass, the properties of the backing, and the amount of contact pressure, formulators and designers need to factor in the contact surface of the substrate(s) to determine the nature of the bond.
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In determining how to choose a tape, important aspects of the substrate(s) include:
- High or low (tensile) strength
- Rigidity or flexibility
- Size and weight
- Smooth or rough texture
- High or low surface energy
- High, low or no porosity
- High, low, or no absorbency
- Coated or uncoated
- Surface contaminants
- Environmental conditions.