SilGrip™ PSA6574 is a silicone pressure-sensitive adhesive (PSA) manufactured by Momentive with excellent thermal stability and chemical resistance. It is used in the manufacture of industrial tapes and labels for use in temperature extremes.
SilGrip™ PSA6574 is a solvent-based silicone pressure-sensitive adhesive (PSA) that offers good adhesion to low–surface energy substrates and outstanding thermal stability. This pressure-sensitive adhesive is supplied as a 55% solids solution consisting of a phenyl-based polysiloxane gum and a resin in toluene and VM&P Naphtha. It can be used as provided or further diluted to achieve an appropriate viscosity to coat onto tape and label stock.
When cured, the SilGrip™ PSA6574 adhesive is serviceable at temperatures up to 500°F and resistant to attack by chemicals, weathering, and microbes. Its high-temperature resistance makes it the most useful Momentive pressure-sensitive adhesive in tape applications for plasma and flame sprays, electrical insulation, and heat shielding. This adhesive also provides good performance in low-temperature environments, making it an ideal adhesive for freezer-safe labels.
SilGrip™ PSA6574 can also be used to bond materials as a replacement for mechanical fasteners in automotive and aerospace assembly. When used in assembly applications, SilGrip™ PSA6574 provides improvements to vibration damping. If increased peel and shear properties are desired, SilGrip™ PSA6574 may be blended with the SilGrip™ SR545 resin.
Silicone solids (%): 55
Specific gravity (at 25°C): 0.98
Density (lbs/gal): 8.3
Viscosity (at 25°C, cPs): 17,000
Color: Light straw
Flash point (PMCC, °C): 11
Solvent: Toluene, VM&P Naphtha
Primary Chemistry: Silicone
Effective in a wide temperature range
Leaves minimal silicone residue on surfaces
Provides effective adhesion to various substrates
Superior thermal stability and resistance to chemical attack
Failure of acrylic and rubber adhesives at high temperatures
Delamination of adhesives due to microbial, fungal, and chemical attack
Inability to achieve the highest-service temperatures using methyl silicone pressure-sensitive adhesives
Vibration in automobiles that causes excess road noise
High-performance tapes and labels
Brake shim transfer adhesives
Thermal spray masking tapes
Electrical insulation tapes
Heat shielding tapes
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