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Address
304 North Cardinal
St. Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM

Engineered for high-temperature service, this red RTV silicone sealant can withstand temperatures up to 316°C (600°F) under suitable operating conditions. Its flexible cured rubber accommodates vibration, movement, and thermal expansion, helping maintain a reliable seal where rigid materials may crack or lose adhesion.
The smooth, flowable paste is easy to dispense manually or with professional dispensing equipment. Once exposed to moisture in the air, it cures into a durable elastomeric seal without becoming hard, brittle, or excessively shrunken during normal service. This makes it suitable for maintenance, repair, manufacturing, and formed-in-place gasket work.

Typical uses include sealing industrial furnaces, ovens, boilers, exhaust stacks, high-temperature ducting, and heating elements in electrical appliances. It can also be considered for metal assemblies requiring a flexible, moisture-cured seal and for formed-in-place gasketing where heat resistance and long-term elasticity are important.
LOCTITE SI 596 High Temperature RTV Silicone is particularly valuable in industrial maintenance environments where equipment experiences temperature changes, vibration, moisture, and outdoor exposure. Its red color provides clear visual identification during application and inspection.
For best results, remove old gasket material, dust, oil, grease, and loose contamination from the bonding surfaces. Ensure the substrates are clean and dry before applying a continuous bead. Assemble components within the recommended working time and avoid excessive movement while the silicone begins curing.
Cure speed depends on temperature, humidity, bead thickness, and joint design. Because this is an acetoxy silicone, users should confirm compatibility with sensitive metals, electrical components, and other substrates before production use. Always review the latest technical data sheet and safety data sheet before handling.
Choose LOCTITE SI 596 High Temperature RTV Silicone for dependable sealing performance in demanding thermal environments. It is available in practical package sizes for repair teams, distributors, factories, and equipment service operations. Packaging availability may vary by market, so confirm the required size, quantity, and lead time before ordering.
Before full-scale application, test the sealant on representative materials and confirm that joint dimensions, service temperature, chemical exposure, and cure conditions meet project requirements. Store unopened containers according to the manufacturer’s instructions and use clean dispensing tools to reduce contamination. For production lines, consistent bead size and controlled assembly pressure can improve sealing quality. Buyers should verify regional packaging, shelf life, and regulatory documentation with the supplier, especially when purchasing for export, OEM manufacturing, or scheduled plant maintenance programs.
For additional product data, visit the official Henkel LOCTITE SI 596 product page. You can also explore our industrial silicone sealants for related high-temperature sealing solutions.
Contact us for quotations, bulk purchasing, export packaging, and technical product matching. Our team can help commercial buyers select the appropriate sealant format for maintenance, production, and resale requirements.