20 Best Rtv Sealant For Intake Manifold (2023 Updated)

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Rtv sealant is used to seal the intake manifold to the engine block. It is a silicone-based sealant that is applied to the mating surfaces of the intake manifold and engine block. Rtv sealant is resistant to heat and oil, and it will create a watertight seal between the two surfaces.

20 Best Rtv Sealant For Intake Manifold

Product Image Product Name Features Price

Permatex Maximum Oil Resistance RTV Silicone Gasket Maker, Ultra Black – 3.35 oz tube

  • 3.35 oz

Permatex 81724 Ultra Blue RTV Silicone Gasket Maker, 3.35 oz

  • Eight times more flexible than cork/composite gaskets
  • Three times more oil resistant than conventional silicones
  • Sensor-safe, low odor, non-corrosive

Permatex 81724 Ultra Blue Multipurpose RTV Silicone Gasket Maker – 3.35 oz Tube (77B)

  • Sensor-safe, low odor, noncorrosive
  • Outstanding oil resistance
  • More flexible than cork/composite gaskets

Permatex – 27038 – PX Optimum Red 3.35oz

  • Maximum temperature performance
  • OEM Specified, Sensor-safe, low odor, non-corrosive
  • Non-flammable, non-toxic

J-B Weld Sealant Silicone Red RTV 3oz 31314

  • Continuous temperatures up to 550º F or 650º F
  • Hi-Temp 100% RTV Silicone
  • Suitable for many uses as a gasket maker, sealant and adhesive

Permatex High-Temp Red RTV Silicone Gasket Maker

  • OEM Specified
  • Resists up to 650degF Intermittent
  • For High Temperature Applications

Edelbrock 1076 RTV Silicone 3 oz

  • 3 oz

Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz Tube

  • Most Advanced, High Temp Rtv Silicone Gasket Available
  • Three Times More Oil Resistant Than Conventional Silicones; Eight Times More Flexible Than Cut Gaskets

Pro Seal 80726 Red Hi-Temp RTV Silicone Instant Gasket 3 oz

  • Specially formulated for high temperatute applications
  • Safe for all car models
  • Resistant to various oils and fluids

Ultra Copper Hi-Temp RTV Silicone Gasket Maker

  • cylinder, turbocharged or high performance engines. Sensors safe, low odor, non
  • corrosive. Superior adhesion. Temp range

Permatex 22074 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker 0.5 oz.

  • Designed specially for high-torque and high vibration applications
  • Low odor and non-corrosive formula
  • Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings

Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket

Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

  • condition: New
  • Brand: PERMATEX
  • Model: 85080

Permatex 27036 Optimum Grey Gasket Maker 3.35 oz.

  • Sensor-safe, low odor, and non-corrosive.
  • Maximum temperature resistance: -65F to 700f(-54 DegreeC to 371 DegreeC) intermittent. 40% higher Temp. Than Ultra grey.
Permatex Maximum Oil Resistance RTV Silicone Gasket Maker, Ultra Black – 3.35 oz tube
  • 3.35 oz
Permatex 81724 Ultra Blue RTV Silicone Gasket Maker, 3.35 oz
  • Eight times more flexible than cork/composite gaskets
  • Three times more oil resistant than conventional silicones
  • Sensor-safe, low odor, non-corrosive
Permatex 81724 Ultra Blue Multipurpose RTV Silicone Gasket Maker – 3.35 oz Tube (77B)
  • Sensor-safe, low odor, noncorrosive
  • Outstanding oil resistance
  • More flexible than cork/composite gaskets
Permatex – 27038 – PX Optimum Red 3.35oz
  • Maximum temperature performance
  • OEM Specified, Sensor-safe, low odor, non-corrosive
  • Non-flammable, non-toxic
J-B Weld Sealant Silicone Red RTV 3oz 31314
  • Continuous temperatures up to 550º F or 650º F
  • Hi-Temp 100% RTV Silicone
  • Suitable for many uses as a gasket maker, sealant and adhesive
Permatex High-Temp Red RTV Silicone Gasket Maker
  • OEM Specified
  • Resists up to 650degF Intermittent
  • For High Temperature Applications
Edelbrock 1076 RTV Silicone 3 oz
  • 3 oz
Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz Tube
  • Most Advanced, High Temp Rtv Silicone Gasket Available
  • Three Times More Oil Resistant Than Conventional Silicones; Eight Times More Flexible Than Cut Gaskets
Pro Seal 80726 Red Hi-Temp RTV Silicone Instant Gasket 3 oz
  • Specially formulated for high temperatute applications
  • Safe for all car models
  • Resistant to various oils and fluids
Ultra Copper Hi-Temp RTV Silicone Gasket Maker
  • cylinder, turbocharged or high performance engines. Sensors safe, low odor, non
  • corrosive. Superior adhesion. Temp range
Permatex 22074 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker 0.5 oz.
  • Designed specially for high-torque and high vibration applications
  • Low odor and non-corrosive formula
  • Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings
Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz
  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket
Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker
  • condition: New
  • Brand: PERMATEX
  • Model: 85080
Permatex 27036 Optimum Grey Gasket Maker 3.35 oz.
  • Sensor-safe, low odor, and non-corrosive.
  • Maximum temperature resistance: -65F to 700f(-54 DegreeC to 371 DegreeC) intermittent. 40% higher Temp. Than Ultra grey.

1. Permatex Maximum Oil Resistance RTV Silicone Gasket Maker, Ultra Black – 3.35 oz tube

Permatex Maximum Oil Resistance RTV Silicone Gasket Maker, Ultra Black - 3.35 oz tube

  • 3.35 oz

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Amazon.com
Walmart
Home Depot
AutoZone

Product Details

Specifications

Details
Ingredients Calcium Carbonate (Cas 471-34-1), Polydimethylsiloxane (Cas 70131-67-8), Polybutylene Resin (Cas 9003-29-6), Vinyl Oximinosilane (Cas 2224-33-1), Stearic Acid (Cas 57-11-4), Carbon Black (Cas 1333-86-4).
Units in Package 1
Unit Size 3.35 oz tube

Reviews From Real Customers

Wesley00
A.J.1.

2. Permatex 81724 Ultra Blue RTV Silicone Gasket Maker, 3.35 oz

Permatex 81724 Ultra Blue RTV Silicone Gasket Maker, 3.35 oz

  • Eight times more flexible than cork/composite gaskets
  • Three times more oil resistant than conventional silicones
  • Sensor-safe, low odor, non-corrosive
  • Suggested Applications: Valve covers, oil pans, timing covers, transmission pans, differential covers

Check Latest Price

Sold By Price
Amazon.com
Walmart
Ace Hardware
Tractor Supply Company

Product Details

Specifications

Details
Units in Package 1
Unit Size 3.35 oz peg

Reviews From Real Customers

mtnbikr
R.R.J

3. Permatex 81724 Ultra Blue Multipurpose RTV Silicone Gasket Maker – 3.35 oz Tube (77B)

Permatex 81724 Ultra Blue Multipurpose RTV Silicone Gasket Maker - 3.35 oz Tube (77B)

  • Sensor-safe, low odor, noncorrosive
  • Outstanding oil resistance
  • More flexible than cork/composite gaskets

Check Latest Price

Sold By Price
Amazon.com – Seller
Hardware World
Advance Auto Parts
MechanicSurplus.com

Product Details

Specifications

Details
Product Dimensions 8 x 3.8 x 0.2 inches

4. Permatex – 27038 – PX Optimum Red 3.35oz

Permatex - 27038 - PX Optimum Red 3.35oz

  • Maximum temperature performance
  • OEM Specified, Sensor-safe, low odor, non-corrosive
  • Non-flammable, non-toxic
  • Can be used as a gasket maker or dressing and meets performance specs of OE silicone gaskets
  • Top Job Applications: Header, manifold, slip-fit exhaust parts, turbocharge and withstands up to 750°F (399°C) intermittent

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Amazon.com – Seller
eBay
Walmart
Ace Hardware

Product Details

Specifications

Details
Brand Name Permatex
High Temperature Yes
Minimum Operating Temperature -90 F
Number in Package 1 pk
Product Type Gasket Maker

Reviews From Real Customers

old tractor guy
Jblake
Santos

5. J-B Weld Sealant Silicone Red RTV 3oz 31314

J-B Weld Sealant Silicone Red RTV 3oz 31314

  • Continuous temperatures up to 550º F or 650º F
  • Hi-Temp 100% RTV Silicone
  • Suitable for many uses as a gasket maker, sealant and adhesive
  • Non shrink formula
  • Set time 1 hour, cure colour red

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Sold By Price
Amazon.com
eBay
Walmart
Grainger Industrial Supply

Product Details

Specifications

Details
Product Type Silicone gasket maker and sealant
Size 3-oz. tube
Color Red (cure color)

Reviews From Real Customers

jojoh-wi-ezq0r9km7q

6. Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker,

Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker,

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Sold By Price
Amazon.com
eBay
Walmart
Tractor Supply Company

Product Details

Reviews From Real Customers

Baupan
George do it all

7. Permatex High-Temp Red RTV Silicone Gasket Maker

Permatex High-Temp Red RTV Silicone Gasket Maker

  • OEM Specified
  • Resists up to 650degF Intermittent
  • For High Temperature Applications

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
Home Depot

Product Details

Specifications

Details
Units in Package 1
Unit Size 3 oz tube

Reviews From Real Customers

angryconsumer
Bigspike

8. Edelbrock 1076 RTV Silicone 3 oz

Edelbrock 1076 RTV Silicone 3 oz

  • 3 oz

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Amazon
eBay
Walmart
Nightmotorsport

Product Details

Specifications

Details
Length 7.5 in
Height 1.5 in
Width 4 in
Weight 0.8 lb

9. Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz Tube

Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz Tube

  • Most Advanced, High Temp Rtv Silicone Gasket Available
  • Three Times More Oil Resistant Than Conventional Silicones; Eight Times More Flexible Than Cut Gaskets
  • Sensor-Safe, Low Odor, And Non-Corrosive With Superior Adhesion
  • Temperature Range -75F To 700F Intermittent
  • Suggested Applications: Exhaust Manifolds/Headers, Valve Covers, Oil Pans, Timing Covers, Water Pumps, Thermostat Housings

Check Latest Price

Sold By Price
Amazon
eBay
meekoutlet.com

Product Details

Specifications

Details
Dimensions 1.4×3.8×8

Reviews From Real Customers

S.E.
T.F.
J.Y.Y.

10. Permatex 81878 RTV Silicone Gasket Maker Type-1 High Temperature 3 oz

Permatex 81878 RTV Silicone Gasket Maker Type-1 High Temperature 3 oz

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Amazon
Frankfort Hardware
Advance Auto Parts

Product Details

Specifications

Details
Minimum Operating Temperature -65 °F
Each Weight 0.250 LB
Sealant Type Type-1

11. Pro Seal 80726 Red Hi-Temp RTV Silicone Instant Gasket 3 oz

Pro Seal 80726 Red Hi-Temp RTV Silicone Instant Gasket 3 oz

  • Specially formulated for high temperatute applications
  • Safe for all car models
  • Resistant to various oils and fluids

Check Latest Price

Sold By Price
Amazon
eBay
Grainger Industrial Supply
Zoro

Product Details

Specifications

Details
Temp. Range -70 to 650 Degrees F
Specific Gravity 1.04
Flash Point 250 Degrees F
Full Cure 24 hr
Begins to Harden 10 to 20 min

Reviews From Real Customers

tyve7707
uniq-51
cheguavauniquefinds

12. Ultra Copper Hi-Temp RTV Silicone Gasket Maker

Ultra Copper Hi-Temp RTV Silicone Gasket Maker

  • cylinder, turbocharged or high performance engines. Sensors safe, low odor, non
  • corrosive. Superior adhesion. Temp range

Check Latest Price

Sold By Price
Amazon
eBay
National Supply Direct
NuWave Marine

Product Details

Specifications

Details
Length 4.25

13. Permatex 22074 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker 0.5 oz.

Permatex 22074 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker 0.5 oz.

  • Designed specially for high-torque and high vibration applications
  • Low odor and non-corrosive formula
  • Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
Advance Auto Parts

Product Details

Specifications

Details
Ingredients Contains: Polydimethylsiloxane (Cas 70131-67-8), Calcium Carbonate (Cas 471-34-1), Garnet Mineral (Cas 1302-62-1), Silicon Dioxide (Cas 68611-44-9), Vinyl Oximinosilane (Cas 2224-33-1), Stearic Acid (Cas 57-11-4), 2-Butanone Oxime (Cas 96-29-7).
Units in Package 1
Unit Size .5 oz peg

Reviews From Real Customers

JustaDIYguy
JohnFromNC
Engine mechanic

14. Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket
  • Large temperature range – withstands temperatures between -60C and 204C (260C for intermittent periods)

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
Grainger Industrial Supply

Product Details

Specifications

Details
Temp. Range -75 to 500 Degrees F
Specific Gravity 1.04
Flash Point 250 Degrees F
Full Cure 24 hr
Begins to Harden 10 to 20 min

Reviews From Real Customers

loot-hoarder
725ice
actioneer68

15. Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker

  • condition: New
  • Brand: PERMATEX
  • Model: 85080

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Amazon
Walmart – D&D Solutions LLC.
Pit Stop USA
SatPro

Product Details

16. Permatex 81160-12pk High-Temp Red RTV Silicone Gasket 3 oz Pack of 12 at MechanicSurplus.com

Permatex 81160-12pk High-Temp Red RTV Silicone Gasket 3 oz Pack of 12 at MechanicSurplus.com

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Amazon
MechanicSurplus.com

Product Details

Reviews From Real Customers

josey0908
bilvihur
Asdf

17. Permatex Ultra Blue RTV Silicone Gasket Maker (3 oz.) PER81724

Permatex Ultra Blue RTV Silicone Gasket Maker (3 oz.) PER81724

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Amazon
Auto Barn

Product Details

18. Permatex 3 oz Tube Blue RTV Silicone Gasket Maker, Size: One Size

Permatex 3 oz Tube Blue RTV Silicone Gasket Maker, Size: One Size

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Amazon
Walmart – Johnson Pac Wholesale

Product Details

19. Permatex 27036 Optimum Grey Gasket Maker 3.35 oz.

Permatex 27036 Optimum Grey Gasket Maker 3.35 oz.

  • Sensor-safe, low odor, and non-corrosive.
  • Maximum temperature resistance: -65F to 700f(-54 DegreeC to 371 DegreeC) intermittent. 40% higher Temp. Than Ultra grey.
  • The most Advanced, high Temp RTV silicone gasket maker Available.
  • Includes 2 nozzles.

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Sold By Price
Amazon
eBay
Walmart
Advance Auto Parts

Product Details

Specifications

Details
Units in Package 1
Unit Size 3.35 oz peg

Reviews From Real Customers

MICK
G W C
A Hobson

20. Summit Racing SUM-941234: Summit Racing RTV Black Silicone

Summit Racing SUM-941234: Summit Racing RTV Black Silicone

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Summit Racing

Product Details

Specifications

Details
Part Type RTV
RTV Type Black
Sensor Safe Yes
Temperature Range (degrees F) -65 to 350 degrees F
Volume 8.00 oz.

Reviews From Real Customers

GRANT
WESS

Best Rtv Sealant For Intake Manifold Buying Guides

What are the benefits of using RTV sealant on an intake manifold?

gaskets

The benefits of using RTV sealant are that it is easy to apply, it sets quickly, and it forms a strong bond that can withstand high temperatures. It is also resistant to oil and fuel, which makes it ideal for use on intake manifolds.

How to apply RTV sealant to an intake manifold?

Use a putty knife to apply an even layer of RTV sealant to the intake manifold. Make sure to apply the sealant in all of the nooks and crannies. Allow the sealant to cure for 24 hours before installing the intake manifold.

What are the precautions to take when using RTV sealant?

When using RTV sealant on an intake manifold, it is important to first clean the surface to be sealed. Any dirt, grease or oil on the surface will prevent the sealant from adhering properly. The surface should also be dry and free of any moisture before applying the sealant.

It is also important to use the correct amount of sealant. Too much sealant can cause it to ooze out from under the gasket and into the engine, while too little sealant will not provide a proper seal.

How long does RTV sealant take to cure?

It typically takes 24 hours for RTV sealant to cure for intake manifold applications.

What are the symptoms of an improperly sealed intake manifold?

If the RTV sealant was not properly applied to the intake manifold, it can cause a number of issues. These can include a vacuum leak, an exhaust leak, and/or an intake leak. If there is an intake leak, it can cause the engine to run lean, which can cause a number of problems.

If there is an exhaust leak, it can cause the engine to run rich, which can also cause a number of problems.

How to troubleshoot an intake manifold that is not sealing properly?

There are a few things that you can do to troubleshoot an intake manifold that is not sealing properly. One thing that you can do is to check the gasket for any leaks. Another thing that you can do is to check the intake manifold for any cracks or leaks.

If you find any cracks or leaks, you will need to replace the intake manifold.

How to remove RTV sealant from an intake manifold?

To remove RTV sealant from an intake manifold, you will need to use a putty knife or a flat-head screwdriver. Gently insert the blade under the edge of the sealant and pry it up. Once you have a small section lifted, you can use your fingers to peel the rest of the sealant off.

If there are any stubborn pieces remaining, you can use a razor blade to scrape them away.

Conclusion

The conclusion of RTV sealant for intake manifold is that it is an excellent product that can help to seal and protect your engine. It is easy to use and can be applied in a variety of ways to suit your needs.

It is also very affordable and will last for many years.

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