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3 oz black RTV gasket maker tube new condition

Pro-Seal

Pro-Seal 80046 Oil-Resistant RTV Gasket Maker 3 oz Black

SKU CH-4QXB-AFTEJ

Oil-resistant RTV gasket maker in a 3 oz tube, sensor-safe and water-resistant, cures at room temperature in one day with a 10-minute working time and handles temperatures from -75 to 400 °F

  • Oil-resistant formula protects engines and gearboxes
  • Sensor-safe acetoxy silicone won't damage oxygen sensors
  • Withstands -75 °F to 400 °F for extreme conditions
  • 10-minute work time allows precise placement before cure
  • Fills gaps up to .25 in for reliable sealing

Pro-Seal 80046 RTV Gasket Maker

This oil-resistant RTV gasket maker comes in a 3 oz tube for automotive and industrial sealing tasks. The acetoxy silicone paste cures at room temperature to form a flexible, sensor-safe seal on metal surfaces. It is designed for use with water and oil-based fluids in engine and transmission assemblies.

Capacity and headroom: 3 oz tube

The 3 oz container provides enough material for multiple gasket replacements or repairs on typical automotive components. It fills gaps up to .25 in and withstands continuous temperatures from -75 Degrees F to 400 Degrees F. Full cure requires one day, so immediate pressure testing is not possible after application.

Sensor-safe acetoxy silicone chemistry

The acetoxy silicone base ensures compatibility with oxygen sensors and catalytic converters in modern vehicles. It resists oil, water, and common automotive chemicals without degrading. Buyers needing a non-corrosive formula for sensitive electronics or faster cure times should verify specifications before purchase.

How it compares

Measured against everything we stock in Caulking & Sealing Supplies, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 95% of the 631 comparable items (median $16.99).

Specifications

Product
Brand namePRO SEAL

Questions about this item

Will the Pro-Seal 80046 RTV bond reliably to the original metal gasket surfaces on my older engine?

Yes, it is formulated for metal substrates and resists oil, water and chemicals once cured.

How can I verify the Pro-Seal 80046 has cured correctly after assembly?

Allow one full day at room temperature; the paste will become a firm, flexible rubber that holds a .25 in gap.

Does the 3 oz tube include a nozzle or must I buy a caulk gun separately?

The product comes in a 3 oz tube; no caulk gun or extra nozzle is mentioned in the specifications.

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