LOCTITE® SI 5900 Flange Sealant

Known as LOCTITE 5900

Features and Benefits

Available sizes:

300 ml Standard cartridge
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Silicone-based gasketing product suitable for various substrates. Good resistance to oil and joint movement.
LOCTITE® SI 5900 is a moisture-cured, heavy bodied, silicone-based form-in-place flange sealant with excellent resistance to oil and joint movement. Its heavy bodied properties allow it to withstand on line, low pressure tests before the product begins to cure. Typical applications include stamped sheet metal covers, and it’s suitable for gaps up to 1 mm (0.04") in metal, plastic, glass, and ceramic substrates. It has a skin-over time of just 15 minutes, and once cured provides a seal that won’t shrink, compress, crack or relax, even when exposed to oil or joint movements.
  • Excellent oil resistance
  • Registered to NSF Category P1
  • Thixotropic for ease of application
  • Adheres to metal, plastic, glass, ceramic
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Documents and Downloads

Technical Data Sheet
LOCTITE® SI 5900®
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Safety Data Sheets and RoHs
  • 300 ml Standard cartridge - IDH 2061873
LOCTITE SI 5900, 300ml 2061873 en-ES
IDH: 2061873
EAN: 5010266234359

Size Case: 300 ml Standard cartridge

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Technical Information

Color Black
Cure type Room temperature vulcanization (RTV) cure
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 )
Recommended for use with Metal, Plastic
Storage temperature 8.0 - 21.0 °C
Tack free time 15.0 min.

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LOCTITE® SI 5900
Silicone-based gasketing product suitable for various substrates. Good resistance to oil and joint movement.
  • 300 ml Standard cartridge - IDH 2061873

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