Overview Key Applications Permanent acrylic adhesive may require temperature, UV, and moisture resistance. However, adhesive properties can also be adjusted to allow for early removal or for repositioning. Acrylic adhesives have excellent outdoor weathering and aging characteristics. One of their main applications is for outdoor graphics. Although they have lower adhesion than rubber-based PSAs, acrylics have higher temperature stability and excellent UV resistance. Acrylic adhesives tend to stick well to substrates such as metals, glass, and high-energy polymeric surfaces. Thus, they can be used for holding a wide variety of substrates including automobile identification tags, mounting tape, protective moldings, etc. Many pressure-sensitive acrylic resins provide excellent packaging and label adhesives at temperatures as low as –50°C. These are commonly used in the food processing industry. Depending on the properties of the base polymer and additive resins, these adhesive systems may be applicable to freezer conditions. Acrylic tapes and label adhesives have medium water resistance, good resistance to oil and thermal shock, and poor resistance to organic solvents. Temperature resistance varies with the nature of the base polymer. They are especially well suited for outdoor applications (e.g., auto "bumper stickers", identification tags, barcodes, signs, etc.). Acrylic tapes are used in high performance applications such as mounting tape. Waterborne acrylic PSAs generally do not have the degree of moisture resistance as those acrylic adhesives that are available via solvent solution or UV polymerization. This is more related to the additives resulting from the emulsion polymerization process than to the base polymer itself. UV curable acrylic PSA is gaining acceptance in the industry. Acrylic hot-melt pressure-sensitive adhesives (HMPSA) are also relatively new to the industry. Acrylic HMPSAs provide better oxidative resistance and UV stability than other hot melt or pressure-sensitive adhesives. These adhesives can be applied as a hot melt, but once on the substrate they act as a pressure-sensitive adhesive. In this method of application, the use of solvent simply as a carrier to apply pressure-sensitive resin to the substrate is eliminated. Suppliers Brands