CSL588 | Electronic Grade Silicone Sealant / Adhesive - Case of 20 cartridges

Minimum Order Quantity:
1 unit
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CSL-588 is a one-part moisture cure, neutral RTV (room temperature vulcanizing) silicone/ adhesive which cures to form a tough, permanently flexible rubber. The noncorrosive curing systems makes it ideally suited for protecting, sealing and insulating corrosion sensitive electrical and electronic materials such as copper, brass and silver. CSL-588 has excellent dielectric properties, high surface resistivity and repels water to protect sensitive electronic components. CSL-588 has excellent resistance to weathering including ozone, ultraviolet radiation and airborne chemicals. After cure, the heat stability range is from -62°C to 232° C (-80°F to 450°F) and the sealant/adhesive can be applied to surfaces from -18°C to 50° C (0°F to 120°F). CSL-588 can be used as a durable, general purpose sealant/adhesive in a wide range of electrical and electronic applications. Priming is not normally required for application to most substrates.



  • Lead wire entries
  • Conduit terminal boxes and connectors
  • Component mounting
  • Conduit ends
  • Splices
  • Cover plates
  • Coaxial cable connectors
  • Printed circuit boards
  • Conductor entry holes



  • Neutral cure formulation
  • Recognized under the Components Program of the Underwriters Laboratories Inc.®
  • Meets MIL-A-46146A, Type 1 specifications
  • Non-corrosive to metals in electronic/ electrical applications
  • Durometer Hardness (ASTM D2240, Shore A) 25 points
  • Tensile Strength (ASTM D412) 14.0 kg/cm2 (200 psi)
  • Elongation at Break (ASTM D412) 400%
  • Tear Resistance (ASTM D624, Die B) 3.5 kN/m (20 ppi)
  • Thermal Expansion Coefficient (0°C to 100°C / 32°F to 212°F) 9.3 x 10-4 cm/°C
  • Useable Temperature Range -62°C to 232°C (-80°F to 450°F)
  • Dielectric Strength (ASTM D149) 550 V/mil (217kV/cm)
  • Volume Resistivity (ASTM D257) 1.5 x 1015
  • Dissipation Factor, 100 Hz to 100 kHz (ASTM D150) 0.0015
  • Dielectric Constant, 100 Hz to 100 kHz (ASTM D150) 2.80
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