LOCTITE® SI 596

Features and Benefits

Red, 1-part, flowable smooth, acetoxy silicone paste sealant.
LOCTITE® SI 596 is a red, 1-part, flowable smooth, acetoxy silicone paste sealant. It forms a tough, flexible, waterproof, oil-resistant silicone rubber bond. It is also used as a sealant and adhesive in industrial furnaces, ovens, boilers, exhaust stacks, high temperature ducting and heating elements in electrical appliances.
  • Resists ageing, weathering and thermal cycling without hardening, shrinking or cracking
  • Typically used in applications with an operating range of -50°C to +250°C
  • Forms a tough rubber seal/bond to most surfaces
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Technical Information

Application method Dispense gun, Dispense system, Manual
Applications For high temperature applications, Formed in place (FIP) sealing, Gasketing, Sealing
Chemical basis / base Acetoxy silicone
Color Red
Cure type Room temperature vulcanization (RTV) cure
Extrusion rate, @ 15.0 sec. (25.0 °C )Pressure 0.62 MPa ≥250.0 g/min.
Key characteristics Flexible, Temperature resistant, Thixotropic
Number of components 1 part
Operating temperature -75.0 - 600.0 °F (59.0 - 316.0 °C )
Physical form Paste
Recommended for use with Metal
Storage temperature 8.0 - 21.0 °C
Tack free time 30.0 min.