Pro-Tac Industries uses pressure-sensitive adhesives (PSA). PSA refer to a distinct category of adhesives that remain permanently highly aggressive and tacky under normal temperatures. There are a number of advantages to using these types of adhesives. Their basic physical properties are consistent, and so is the uniformity of their thickness. Pressure-sensitive adhesives act as a moisture barrier. They provide acoustical and noise reduction properties. They can easily be bonded to very light and thin substrates. There are several other advantages related to the structure and composition of the adhesives. At Pro-Tac Industries, we mainly use transfer tapes and double-sided adhesives.

Transfer tapes are coated on a protecting silicone paper. Because transfer tapes are not supported by a film, they are better at adequately coating irregular surfaces than double-sided adhesives. Double-sided adhesives are coated on both sides with a supporting film. A silicone paper protects the adhesive. One of the advantages of this type of construction is that it allows each film side to be coated with different substrates and different adhesive thicknesses as well. Optimum results may be obtained depending on the final use of the product. The supporting film increases the dimensional stability of the substrate to which the adhesive is bonded, especially if this substrate is soft and elastic.

As far as the adhesive composition is concerned, the main adhesives we use are rubber-based and acrylic. Rubber-based adhesives have a high initial tack. These adhesives are the most economical types of adhesives.

Acrylic adhesives generally have a lower initial tack. However, they offer better resistance and performance in the long run, and perform better outdoors than do rubber-based adhesives.

To find out more about this series, please contact your technical advisor.