Generally a Tamper Evident Security Seal can be compared to a self-adhesive label.
It is usually supplied on a roll exactly like a self-adhesive label.
It consists of a “Face” material and then a layer of adhesive.
The face material varies due to the requirements of the purpose, position and application of the seal.
The kind of adhesive that is used will also depend on the purpose, position and application of the seal.
The real technology lies in the treatment of the face material, so that the hidden message will appear when tampering takes place, according to the purpose and design requirements of the seal.
A tamper evident tape has many of the above attributes yet when it is rolled up may look exactly like a roll of packaging tape, as all the technology is “hidden” until tampering starts.
The choice of adhesive is determined by the surface and climatic conditions where the seal will be applied and used.