PRODUCT DESCRIPTION
Permatex Hi-Temp RTV Silicone Gasket is a single
component, room temperature vulcanizing gasketing
compound designed to provide reliable “formed-in-place”
gaskets for mechanical assemblies. This material cures on
exposure to moisture in the air to form a tough, flexible, silicone
rubber gasket. The product resists aging, weathering and
thermal cycling without hardening, shrinking or cracking.
Designed to maintain maximum performance in a continuous
temperature environment of 600°F. OEM Specified.
PRODUCT BENEFITS
• High temperature use
• Superior adhesion and flexibility
• Replaces most cut gaskets
• Can be used as a gasket maker or dressing
• Easy application
• Non-flammable
• Non-toxic
TYPICAL APPLICATIONS
• Drive housings
• Exhaust manifolds
• Thermostat housings
• Valve covers
• Timing gear covers
• Water pumps
• Differential covers
DIRECTIONS FOR USE
For assembly as a form-in-place gasket
1. Remove all previous material from mating surfaces.
Permatex Gasket Remover is recommended for most
materials, not for plastics or painted surfaces.
2. For best results, clean and dry all surfaces with a
residue-free solvent, such as Permatex Brake and
Parts Cleaner.
3. Cut nozzle to desired bead size, 1/16“ to 1/4“ in
diameter. An 1/8” bead is usually sufficient for most
applications.
4. Remove cap, puncture tube or cartridge seal and attach
extension nozzle.
5. Apply a continuous and even bead of silicone to one
surface, first tracing the internal areas of the gasket
configuration, then all surrounding bolt holes as shown:
Permatex Adhesive Sealant Silicone RTV Red 85g
Permatex Hi-Temp RTV Silicone Gasket is a single
component, room temperature vulcanizing gasketing
compound designed to provide reliable “formed-in-place”
gaskets for mechanical assemblies. This material cures on
exposure to moisture in the air to form a tough, flexible, silicone
rubber gasket. The product resists aging, weathering and
thermal cycling without hardening, shrinking or cracking.
Designed to maintain maximum performance in a continuous
temperature environment of 600°F. OEM Specified.





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