Loctite SI 598 RTV Black Silicone for Automotive: Sensor-Safe, High-Temperature, Low-Odor, Non-Corrosive, Fast Cure

LOCTITE Black RTV 598 High-Performance Silicone is designed to meet dealership warranty requirements and ensure extended drivetrain warranty compliance. This fast-curing formula is sensor-safe, low odor, and non-corrosive, meeting the performance specifications of OE silicone gaskets. The product retains high flexibility and oil resistance properties, with a temperature range of -75°F to 625°F (-59°C to 329°C) for intermittent use, and it resists auto and shop fluids, as well as vibration.

LOCTITE automotive aftermarket products are not only OEM-specified, but they are also designed by auto manufacturers and lab tested. Engines of nearly every professional race car are assembled and maintained with LOCTITE brand adhesives, sealants, gasket makers, and coatings. Whether gasoline or diesel, from bolts and gaskets to cooling lines and core plugs, Henkel products are used to seal, secure, and repair vehicle components.

The LOCTITE automotive aftermarket products are OEM-specified, designed by auto manufacturers, and lab tested. Wherever engines are being built or repaired, LOCTITE is trusted by professionals.

This high-temperature silicone sealant works on all metals, including passive substrates (e.g., stainless steel, aluminum, plated surfaces), and it resists cracking, shrinking, and migrating, providing reliable adhesion.

The product's flexibility enhances the load-bearing and shock-absorbing characteristics of the bond area, allowing it to replace almost any cut gasket or coat pre-cut gaskets to increase reliability.

The excellent oil resistance of this LOCTITE silicone sealant ensures it retains effective properties in contact with automotive fluids, such as motor oil, transmission fluids, alcohol, and antifreeze solutions.

The convenient curing process allows the sealant to become tack-free in 30 minutes and reach full strength in 24 hours.

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