Permatex Ultra Black Maximum Oil Resistance RTV Silicone
Permatex Ultra Black Maximum Oil Resistance RTV Silicone is a professional-grade RTV silicone gasket maker developed for automotive and industrial sealing applications where maximum resistance to oil and powertrain fluids is essential. Its advanced sensor-safe, non-corrosive formulation provides superior adhesion to oily surfaces while creating durable, leak-proof formed-in-place gaskets that withstand demanding operating conditions.
Designed to meet OEM specifications, this premium silicone gasket maker replaces conventional paper, cork, rubber, and pre-cut gaskets with a flexible, long-lasting seal. The cured silicone maintains excellent flexibility, allowing it to absorb vibration, thermal expansion, and movement without cracking, shrinking, or leaking.
Permatex Ultra Black offers outstanding resistance to engine oil, transmission fluid, gear lubricants, coolants, and other automotive fluids, making it one of the preferred gasket makers for modern engines and drivetrain components. Its exceptional durability ensures reliable sealing performance even under continuous exposure to harsh operating environments.
With an intermittent operating temperature range of -54°C to +260°C (-65°F to +500°F), the sealant performs reliably in both extreme cold and high-temperature conditions. Automotive technicians and maintenance professionals trust Permatex Ultra Black for critical sealing applications that demand superior oil resistance and long service life.
Key Features
- Premium RTV silicone gasket maker
- Maximum oil resistance
- Sensor-safe formula
- Non-corrosive silicone technology
- Superior adhesion to oily surfaces
- OEM specified and approved
- Replaces paper, cork, rubber, and pre-cut gaskets
- Creates durable formed-in-place gaskets
- Excellent flexibility after curing
- Resists engine oil, transmission fluid, gear oil, and coolants
- Prevents leaks and gasket failure
- Excellent vibration resistance
- Long-lasting sealing performance
- Operating temperature from -54°C to +260°C
- Made in USA
Applications
Permatex Ultra Black RTV Silicone is ideal for:
- Valve covers
- Oil pans
- Intake manifold end seals
- Timing covers
- Differential covers
- Engine assemblies
- Gear housings
- Transmission components
- Automotive engine repair
- Heavy-duty maintenance
- Industrial sealing applications
- General mechanical repairs
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | Permatex Ultra Black RTV Silicone |
| Product Type | RTV Silicone Gasket Maker |
| Formula | Sensor-Safe, Non-Corrosive |
| Color | Black |
| Operating Temperature | -54°C to +260°C (-65°F to +500°F Intermittent) |
| Oil Resistance | Maximum |
| Fluid Resistance | Engine Oil, Transmission Fluid, Gear Oil, Coolants |
| OEM Approved | Yes |
| Flexibility | Excellent |
| Country of Origin | USA |
Benefits
Permatex Ultra Black RTV Silicone creates reliable formed-in-place gaskets that resist oil, heat, vibration, and automotive fluids. Its strong adhesion to oily surfaces reduces leaks, extends gasket life, and improves sealing performance in demanding engine applications. The flexible silicone absorbs thermal expansion and movement while maintaining a durable seal, helping reduce maintenance costs and improve long-term equipment reliability.
Why Choose Permatex Ultra Black RTV Silicone?
Permatex Ultra Black is one of the industry’s most trusted gasket makers for engines and drivetrain systems. Its OEM-approved, sensor-safe formula delivers exceptional oil resistance, outstanding adhesion, and long-lasting flexibility. Whether you’re servicing valve covers, oil pans, timing covers, or differential housings, Permatex Ultra Black provides professional-grade sealing performance that mechanics and automotive professionals rely on worldwide.
