LOCTITE SI 5900 Flange Sealant

Known as LOCTITE 5900

Features and Benefits

Silicone-based gasketing product suitable for various substrates. Good resistance to oil and joint movement.
LOCTITE® SI 5900 is a low strength, moisture-cured, thixotropic silicone-based paste. Typical applications include stamped sheet metal covers (timing covers and oil sumps). It exhibits a rapid skin-over time of 15 min and is suitable for gaps up to 1 mm. As a single component it requires no mixing.
  • Good oil resistance
  • Withstands joint movement
  • Reduces migration of liquid after application
  • Adheres to metal, plastic, glass and ceramic materials
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE SI 5900 Non-Aerosol 1906100 en-US
IDH: 1906100
EAN: 079340005525

Size Case: 50 lb Open Head Pail with Lid

Quantity: 1.0/case

LOCTITE SI 5900 Non-Aerosol 212184 en-US
IDH: 212184
EAN: 079340201668

Size Case: 300 ml Standard Cartridge

Quantity: 10.0/case

LOCTITE SI 5900 Non-Aerosol 230153 en-US
IDH: 230153
EAN: 079340201675

Size Case: 550 lb Open Head Pail with Lid

Quantity: 1.0/case

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Technical Information

Color Black
Extrusion Rate 30.0 g/min.
Key Characteristics Adhesion: High Adhesion, Oil Resistance: Excellent Oil Resistance
Operating Temperature -65.0 - 400.0 °F (-55.0 - 200.0 °C )
Substrates Metal, Plastic
Tack Free Time 15.0 min.