Rubber adhesives used with tape is based on natural or synthetic rubbers and formulated with tackifying resins, oils and antioxidants. Rubber is the most cost effective PSA and offers quick stick capability. Rubber adhesive is not recommended for high heat applications.
Acrylic adhesives are formulated with acrylic polymers and generally have better long-term aging and are more resistant to solvents and environmental factors. Acrylic adhesives typically develop a stronger bond than the traditional rubber adhesives and are able to take higher temperatures.
Silicone adhesives are formulated with Silicone polymers and are the only adhesive that will bond well with silicone substrates. Silicone adhesives are relatively expensive and have a very low initial tack, but can withstand higher temperatures than both rubber and acrylic adhesive.
Characteristic Rubber Acrylic Silicone Cost Lowest Med/High Very High Tack Med/High Med/Low Low Temp. Resistance Low High Very High Adhesion Med/High Moderate/High Med/Low Shear Med/High Moderate/High Excellent Solvent Resistance Poor Good Excellent UV Resistance Poor Excellent Excellent Plasticizer Resistance Poor Moderate/Good Excellent Low-surface energy materials Excellent Poor/Moderate Poor High-surface energy materials Excellent Excellent Moderate
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