Navigating These Challenging Times Together

First, we want to thank you for your support during this difficult time. Like everyone else we are just trying to take things one day at a time and get through this the best we can. We'd like to share some information with you to help you stay updated with what's going on at Life and Home in the coming days.

Steps We're Taking:
Our offices are all currently set up to work from home to help stop the spread of COVID-19. At our warehouse, we are increasing efforts to disinfect high-touch and high-trafficked areas throughout the day and increasing daily cleaning routines. We are also making sure all employees have up-to-date information on how to stay healthy and what preventative measures should be taken and the ability to stay home if they are feeling unwell.

Updated Return Policy:
We have temporarily updated our return policy from 30 days to 45 days. Our goal is that you're completely satisfied with your purchase. If for any reason, you are not satisfied, simply return your purchase in its original packaging, with your original receipt/email confirmation within 45 days from the purchase date.

You may experience delays in shipping as we are taking the necessary precautions to protect you and our team. We are still working hard to get in-stock items shipped within 24 hours. Few items may temporarily have longer fulfillment times.

Customer Service:
Our customer service team is working hard to help all customers as quickly as possible. Due to technical difficulties, you may experience interrupted calls. In the event this occurs, please email us at or message our chat here on the site. We apologize for any inconvenience and thank you for your understanding.

Thank you again for your support.
- The Life and Home team
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Permatex 81422 High-Temp RTV Silicone Gasket, 3 Oz

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Sensor safe, use for valve covers, oil pans, timing covers, water pumps, thermostat housings and transmission pans, can be used as a gasket maker or dressing, non-flammable.
SKU: 41521152
MFG: 81422
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Permatex Sensor-Safe Hi-Temp RTV Silicone Gasket is a single component, room temperature vulcanizing gasketing compound designed to provide reliable "formed-in-place" gaskets for mechanical assemblies. This material cures on exposure to moisture in the air to form a tough, flexible, silicone rubber gasket. The product resists aging, weathering and thermal cycling without hardening, shrinking or cracking. Designed to be oxygen sensor safe, and maintain maximum performance in a continuous temperature environment of 600°F.

The high temp first generation gasket maker formulated for oxygen sensor equipped engines. Temperature range of -65°F to 650°F (-54°C to 343°C) intermittent; resists auto and shop fluids.


  • High temperature use
  • Sensor safe
  • Easy application
  • Superior adhesion and flexibility
  • Replaces most cut gaskets
  • Can be used as a gasket maker or dressing
  • Non-flammable
  • Formulated for oxygen sensor equipped engines
  • First generation 1970-1980 gasket maker
  • -75 to 650 degrees Fahrenheit temperature range
  • Resists auto and shop fluids
  • Use for valve covers, oil pans, timing covers, water pumps, thermostat housings and transmission pans


  • Chemical Type: Acetoxy silicone rubber
  • Appearance: Red non-sag paste
  • Type: High Temperature
  • Size: 3 Oz
  • Packing Type: Tube
  • V O C Content: 3 %
  • Form: Paste
  • Color: Red
  • Odor Scent: Mild Acetic Acid
  • Usage: For Oxygen Sensor Equipped Engines
  • Flash Point: 200 deg F
  • Composition: RTV Silicone, Poly Hydroxy, Amorphous Silica
  • Flammability Rating: 1
  • Extrusion rate @ 25_C, (grams/min): >100
  • Specific Gravity: 1.05


  • Intake manifolds
  • Thermostat housings
  • Valve covers
  • Timing gear covers
  • Water pumps
  • Oil pans
  • Transmission pans

Typical Curing Performance:

Permatex Sensor-Safe Hi-Temp RTV Silicone Gasket cures on exposure to moisture in the air. The product dries tack free in one hour and fully cures in 24 hours. Cure times will vary with temperature, humidity and gap. Note: The curing process can cause corrosion to some surfaces, for critical applications use the Ultra Series silicones.

Chemical/Solvent Resistance:

The product retains effective properties in contact with automotive fluids, such as motor oil, transmission fluids, alcohol and antifreeze solutions. Note: Not recommended for parts in contact with gasoline.


MFR: 81422
SKU: 41521152
UPC: 686226814227
Brand: Permatex
Attachments: MSDS Sheets,