Select Your Region
- Manufacturer: Henkel
- Product Line: LOCTITE® Gasketing Sealants
- Product: LOCTITE® RTV Silicone Gasket Makers
- Industries: Adhesives | Coatings | Facility Infrastructure | Maintenance, Repair, Overhaul | Metal Processing & Fabrication | Transportation
- Authorized Countries: Canada | Mexico | United States
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.
Documents
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
Note: Product Fulfillment Provided by the Producer
Note: The producer provides fulfillment and controls personal data. ChemPoint mediates to share data with the producer.
Manufacturer
Product Line
Industries
Authorized Countries
Canada
Mexico
United States
Overview
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).
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
Related Applications
Adhesives
Coatings
Maintenance, Repair, Overhaul
Related End Markets
Facility Infrastructure
Maintenance, Repair, Overhaul
- Energy Generation & Utility
- Facility Infrastructure
- General Industrial
- Heavy Industry
- Metal Processing & Fabrication
- Oil & Gas
- Pulp & Paper
- Transportation
Global Supply Chain
Global Warehouse Network
Strategically located across North America and EMEA for fast, reliable delivery. Every order, every time.
0
North America
0
EMEA
North America
EMEA
ChemPoint Is Here to Help
Are you in the correct region?
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Canada
