All About Adhesives
We use Permanent Pressure Sensitive Acrylic Adhesives. Pressure sensitive adhesive (PSA, self-adhesive, self-stick adhesive) is adhesive which forms a bond when pressure is applied to marry the adhesive with the adherent. No solvent, water, or heat is needed to activate the adhesive.
As the name “pressure sensitive” indicates, the degree of bond is influenced by the amount of pressure which is used to apply the adhesive to the surface.
Surface factors such as smoothness, surface energy, removal of contaminants, etc. are also important to proper bonding.
PSAs are usually designed to form a bond and hold properly at room temperatures. PSAs typically reduce or lose their tack at cold temperatures and reduce their shear holding ability at high temperatures; specialty adhesives are made to function at high or low temperatures. It is important to choose an adhesive formulation which is designed for its intended use conditions.
Rubber Based Adhesive vs. Acrylic Adhesive
We use high quality, high performance acrylic pressure sensitive adhesives (psa). These adhesives offer a broad combination of the following attributes:
- High peel and shear adhesive strength
- Aggressive tack
- Wide application temperature range
- Permanent bond
Rubber based adhesives typically exhibit very aggressive tack and initial bond, which can give the impression of superior adhesion performance. However, they do not offer the long-term properties of an acrylic psa. While acrylics tend to get stronger and stronger over time, rubber based adhesives begin to suffer degradation over time. While an acrylic adhesive can be expected to adhere indefinitely, a rubber based adhesive can be expected to have a limited life.
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