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LOCTITE® SI 5900™
LOCTITE® SI 5900™ is a highly effective adhesive sealant designed for use in industrial and professional applications. This versatile product provides exceptional sealing performance, preventing the leakage of fluids, such as oils, coolants, transmission fluids, and hydraulic fluids, commonly caused by vibration and thermal expansion. Its fast-curing formula forms a flexible seal that withstands high temperatures and resists chemicals in demanding environments.
LOCTITE® SI 5900™ is a high-performance gasket sealer specifically designed to provide reliable sealing and bonding for a wide range of automotive and industrial applications. With its flexible nature, LOCTITE® SI 5900™ can accommodate thermal expansion and vibrations between mating surfaces, commonly experienced in demanding environments. This flexibility ensures a secure and enduring seal, even under dynamic conditions. It also provides excellent sealing capabilities, resisting damage and leaks from fluids, gases, moisture, and other harmful contaminants. Its fast curing time at room temperature allows it to form a resilient, rubber-like elastomer within a short period, reducing assembly time and increasing productivity. In applications where superior heat resistance is required, LOCTITE® SI 5900™ can withstand temperatures ranging from -75°F to 450°F (-60°C to 232°C).
Specifications
Chemical type: Oxime silicone Appearance (uncured): Black paste Viscosity: Thixotropic paste Cure: Room temperature vulcanizing (RTV) Specific gravity @ 25°C: 1.3 to 1.37 Extrusion rate, g/min: 20 to 50 Blow-out resistance, seconds (4 mm flange, 1.5 mm gap @ 0.014 MPa): ≥100 Flow, ISO 7390, mm (after 2 minutes @ 25 °C): ≤0.2 Volatile content, %: ≤0.5 Tensile strength, ISO 37 N/mm² (psi): ≥1.7 (≥246)
Primary Chemistry: Oxime silicone
Features & Benefits
Silicone type adhesive Excellent resistance to automotive engine oils Good oil resistance Tolerates high joint movement Withstands on line, low-pressure tests Thixotropic nature Reduced migration of liquid product Excellent adhesion profile to a variety of plastic substrates, glass, ceramics, and metals Wide temperature performance of temperatures are -75°F to 450°F (-60°C to 232°C) Leak-proof Blow-out resistance Sensor-safe Protects against leaks caused by vibration and thermal expansion
Problems Solved
Leaks caused by vibration and thermal expansion Poor adhesions to plastic substrates, glass, ceramics, or metals Breakdown of sealant in the presence of high temperatures or chemicals
Applications
LOCTITE® SI 5900™ is designed for the sealing of: -Stamped sheet metal covers, timing covers, and oil sumps -Automotive and marine gaskets -Valve covers -Gearbox covers -Pumps -Compressors -Oil pans -Thermostat housings -Water pumps
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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