Permatex Red RTV Gasket Maker 85g – High Temperature Silicone Sealant
Permatex Red RTV Gasket Maker 85g is a professional-grade high-temperature RTV silicone sealant engineered to replace conventional cut gaskets in demanding automotive and industrial applications. Designed for heavy-duty service, it forms durable, flexible, and leak-proof gaskets that withstand extreme heat, vibration, and thermal cycling without cracking, shrinking, or leaking.
OEM manufacturers specify this premium gasket maker for high-temperature sealing applications where conventional gaskets may fail. Its advanced RTV silicone formula creates reliable formed-in-place gaskets that maintain a strong seal under demanding operating conditions, including towing, heavy-duty engines, industrial equipment, and machinery exposed to elevated temperatures.
Permatex Red RTV Gasket Maker resists oil, coolant, transmission fluid, and many common automotive and workshop fluids, making it ideal for engine repairs, gearbox assemblies, differential covers, thermostat housings, valve covers, water pumps, timing covers, and numerous other sealing applications.
The silicone begins to form a protective skin within approximately one hour and cures completely within 24 hours under normal temperature and humidity conditions. Once cured, it provides a durable, flexible gasket that withstands intermittent temperatures from -54°C to +343°C (-65°F to +650°F) while maintaining long-lasting sealing performance.
For best results, apply a continuous bead around the flange and bolt holes, assemble the components immediately, and tighten the fasteners according to the recommended procedure. The uncured material cleans easily from hands and tools before curing.
Note: Permatex Red RTV Gasket Maker is not recommended for cylinder head gaskets or applications involving direct contact with gasoline.
Key Features
- Premium high-temperature RTV silicone gasket maker
- Replaces conventional cut gaskets
- Forms durable, leak-proof gaskets
- OEM specified for high-temperature applications
- Excellent resistance to cracking and shrinking
- Resists thermal cycling
- Flexible after curing
- Excellent adhesion to metal surfaces
- Resistant to oil, coolant, and shop fluids
- Suitable for heavy-duty automotive applications
- Ideal for towing and high-load conditions
- Skins over in approximately one hour
- Fully cures within 24 hours
- Operating temperature: -54°C to +343°C (-65°F to +650°F intermittent)
- Made in USA
Applications
Permatex Red RTV Gasket Maker is suitable for:
- Valve covers
- Thermostat housings
- Water pumps
- Timing covers
- Transmission pans
- Differential covers
- Gearbox housings
- Engine components
- Industrial machinery
- Heavy-duty equipment
- Flanged metal assemblies
- Automotive maintenance
- Equipment repair
- Industrial sealing applications
Not recommended for:
- Cylinder head gaskets
- Parts in direct contact with gasoline
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | Permatex Red RTV Gasket Maker |
| Product Type | RTV Silicone Gasket Maker |
| Part Number | 81160 |
| Color | Red |
| Temperature Range | -54°C to +343°C (-65°F to +650°F Intermittent) |
| Skin Formation | Approximately 1 Hour |
| Full Cure Time | Approximately 24 Hours |
| Fluid Resistance | Oil, Coolant & Shop Fluids |
| Content | 85 g |
| Quantity | One Piece |
| Country of Origin | USA |
Benefits
Permatex Red RTV Gasket Maker creates reliable formed-in-place gaskets that eliminate the need for many traditional gasket materials. Its advanced silicone formula resists heat, vibration, oil, and thermal cycling while maintaining a flexible, leak-resistant seal. The product improves sealing reliability, reduces maintenance costs, and extends the service life of automotive and industrial equipment operating under demanding conditions.
Why Choose Permatex Red RTV Gasket Maker?
Professionals worldwide trust Permatex Red RTV Gasket Maker for high-temperature sealing applications because it delivers dependable performance in demanding environments. Its OEM-quality silicone formula provides exceptional durability, reliable leak prevention, and long-lasting flexibility while resisting oils, coolants, and workshop fluids. Whether you are repairing an engine, servicing industrial equipment, or replacing traditional gaskets, Permatex Red RTV Gasket Maker offers a professional sealing solution that stands up to extreme conditions.







