Maximum-Temperature Copper RTV Silicone Gasket Maker – 3 oz

Description

Create durable, flexible seals on compatible high-temperature automotive components with this Copper RTV Silicone Gasket Maker. Supplied in a 3-ounce tube, the silicone formula is designed for demanding applications exposed to intense heat, vibration, pressure, and repeated thermal cycling.

The gasket maker fills surface imperfections and forms a custom-fit seal between properly prepared mating surfaces. It can replace selected pre-cut gaskets or reinforce approved gasket assemblies on components such as exhaust manifolds, turbocharger flanges, thermostat housings, valve covers, and other compatible high-temperature applications.

After curing, the flexible copper-colored seal helps resist cracking, shrinking, and migration caused by normal component movement. It is suitable for professional repairs, engine rebuilding, exhaust work, and experienced DIY maintenance when used according to the equipment manufacturer’s procedures.

✨ Features

🔥 Maximum-Temperature Performance

Designed for compatible components exposed to demanding operating temperatures.

Suitable for selected engine, exhaust, and under-hood sealing applications.

🟠 Copper RTV Silicone Formula

Creates a flexible copper-colored silicone gasket after curing.

Useful for high-heat repairs where a durable formed-in-place seal is required.

🔒 Custom-Fit Sealing

Fills minor surface irregularities between compatible mating components.

Helps create a continuous seal around flanges, bolt holes, and approved assemblies.

🔄 Resists Thermal Cycling

Maintains flexibility through repeated heating and cooling cycles.

Helps reduce cracking and separation caused by normal expansion and contraction.

🛡️ Vibration-Resistant Seal

Accommodates limited movement and vibration between properly assembled parts.

Suitable for selected automotive and mechanical equipment applications.

⚙️ Multiple Component Applications

May be used on compatible exhaust manifolds, thermostat housings, valve covers, and turbocharger flanges.

Always follow the component manufacturer’s gasket and sealant requirements.

🧰 Gasket Replacement Support

Can replace selected pre-cut gaskets where formed-in-place silicone is specifically approved.

It may also be used as a gasket dressing in permitted applications.

🧴 Convenient 3 oz Tube

Includes 3 ounces of ready-to-apply RTV silicone sealant.

The compact tube supports controlled application during targeted repairs.

🔧 Professional & DIY Use

Suitable for repair shops, restoration projects, engine servicing, and experienced home mechanics.

Correct preparation, bead size, assembly, and curing are essential for reliable results.

📋 Specifications

Product Type: High-Temperature RTV Silicone Gasket Maker
Container Size: 3 oz
Product Format: Silicone Sealing Compound
Sealant Color: Copper
Primary Functions: Gasket Forming, Flange Sealing and Leak Prevention
Suitable Applications: Selected High-Temperature Automotive and Mechanical Components
Compatible Components May Include: Exhaust Manifolds, Turbocharger Flanges, Thermostat Housings and Valve Covers
Cured Property: Flexible and Vibration Resistant
Application Method: Apply a Continuous Bead to Properly Prepared Mating Surfaces
Recommended Use: Automotive Repair, Engine Rebuilding and High-Heat Equipment Maintenance
Package Quantity: 1 Tube

⚠️ Compatibility & Application Note

Confirm that RTV silicone is approved for the specific component, fluid exposure, operating temperature, sensor system, and gasket design before use. Some assemblies require a factory-style gasket, specialized anaerobic sealant, or dry installation instead.

Remove old gasket material, oil, grease, coolant, rust, and contamination from both mating surfaces. Apply a continuous bead of the recommended thickness, surround bolt holes where directed, and assemble the components according to the specified timing and torque sequence.

Allow the sealant to skin and cure for the period stated on the package before adding fluids, starting the engine, or exposing the repair to heat and pressure.

Do not use on oxygen-sensor contact areas, head gaskets, fuel-contact components, or other unsupported applications. Excess sealant inside an engine or fluid passage can detach and restrict circulation.

⭐ Why You’ll Love It

✅ Designed for High-Temperature Applications
✅ Forms a Flexible Copper Silicone Gasket
✅ Fills Minor Mating-Surface Imperfections
✅ Helps Resist Thermal Cycling
✅ Supports Vibration-Resistant Sealing
✅ Suitable for Multiple Compatible Components
✅ Can Replace Selected Pre-Cut Gaskets
✅ Provides Controlled Tube Application
✅ Useful for Engine and Exhaust Repairs
✅ Includes a Convenient 3-Ounce Tube