Permatex The Right Stuff RTV Gasket Maker 10.1 oz Pack of 6 — sensor-safe, high-temp sealant

Permatex The Right Stuff Gasket Maker is a high-temperature, elastomeric RTV silicone that forms durable, leak-proof gaskets in one minute for engines and gearboxes.

Designed as an advanced replacement for pre-cut gaskets, this six-pack of 10.1 oz cartridges combines blowout resistance, sensor-safe chemistry and broad fluid compatibility to seal flanges, covers and housings that face vibration, thermal cycling and exposure to oils and coolants. The formula cures to a resilient rubber that holds torque and resists many shop fluids while operating across a wide temperature span.

How fast and reliable is the seal?

The Right Stuff sets up quickly so you can reassemble and return equipment to service fast. It skins over in about one minute under typical conditions, allowing you to install immediately and achieve a durable elastomeric seal once fully cured.

• Initial skin time: approximately 1 minute for quick handling
• Cures to an elastomeric rubber that resists blowout under pressure
• Maintains torque retention on fasteners after curing

What temperatures and fluids will it withstand?

This Permatex formula is built for both high and low extremes encountered in engine bays and transmissions. It performs continuously from -75°F up to 450°F and tolerates short-term spikes to 500°F, plus resists common shop fluids without degrading.

• Continuous temperature range: -75°F to 450°F
• Intermittent tolerance up to 500°F for hot spots
• Resistant to ATF, engine oil, coolant and other workshop chemicals

Can I use it with modern sensors and mixed materials?

Yes — the chemistry is sensor-safe and suitable for modern engine components, including aluminum, bi-metal alloys and high-tech plastics. That makes it a practical choice for newer designs where warranties and sensor function are critical.

• Sensor-friendly formulation to avoid interference with engine sensors
• Adheres to dissimilar metals and common automotive plastics
• Preferred where extended warranties and OEM-style performance matter

Which applications is it best for in a shop or at home?

The Right Stuff excels where vibration, thermal expansion and fluid exposure make rigid pre-cut gaskets unreliable. Use it for valve covers, oil pans, transmission pans, differential covers, water pump housings and many service or repair flange joints.

• Ideal for oil pans, valve covers, timing covers and differential housings
• Works well in production repair, maintenance bays and DIY rebuilds
• Outperforms pre-cut gaskets in irregular mating surfaces

Who is this for: Permatex The Right Stuff Gasket Maker (10.1 oz, pack of 6) is targeted to professional mechanics, fleet technicians and experienced DIYers who need a reliable, sensor-safe RTV that cures fast and endures heat, vibration and common automotive fluids. If you routinely replace gaskets on modern engines or want a versatile, high-temp sealant for assemblies made from mixed materials, this product offers a practical, shop-ready solution with the capacity to handle multiple jobs from a single six-pack.