The 7 Best High Temp Silicones For Exhaust Manifold (2022 reviews)

high temp silicones for exhaust manifold
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It is important to have the best high temp silicone for exhaust manifold. In the following post, we will help you to select the best high temp silicone for exhaust manifolds.

Our review process:

Our Top Picks:

Best Overall:
Buy: Permatex Gasket Maker
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Best For Sealing The Joints:
Buy: Permatex High Temp Silicone For Exhaust Manifold
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Best For Your Application:
Buy: Honda High Temp Silicone For Exhaust Manifold
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Best For Oven Doors:
Buy: Jb Weld High Temp Silicone For Exhaust Manifold
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Best For Gearboxes:
Buy: Loctite Recommended Sealer
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Best For Stainless Steel:
Buy: Loctite High Temp Silicone For Exhaust Manifold
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Best For Specific Gravity:
Buy: Pro Seal High Temp Silicone For Exhaust Manifold
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Best Overall: Permatex Gasket Maker

Permatex Gasket Maker
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The look and feel of these silicones are consistent with the high quality we're used to from the rest of Permatex's lineup. The Permatex Gasket Maker works fine and it handles heat. Make sure this fits by entering your model number. These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties.

Above all, the permatex gasket maker is made for back in business, is highly recommended and it is very durable.

Almost all customers opine that the silicone works well on valve covers. And, they strongly agree that the silicone works well for sealing exhaust leaks. And, a few also found that these days silicone sealants are so much better than they used to be. To sum up, many have used the permatex gasket maker for more than a few months without any complaints, and it shows no sign of giving up.

Top Customer Quotes:
  • This works in high temperature environments.
  • This is made for a water pump.
  • There is too much pressure and heat to use any caulk or rtv.
  • It is easier to control its temperature.

Best For Sealing The Joints: Permatex High Temp Silicone For Exhaust Manifold

Permatex High Temp Silicone For Exhaust Manifold
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The Permatex High Temp Silicone For Exhaust Manifold's material feels more premium than its price would suggest. The permatex high temp silicone for the exhaust manifold holds strong, is great with fast shipping and it works very well. Permatex always has the right gasket maker for your application. Also, this remains flexible and it does the job.

The silicone is brand new and it makes for very fast shipping. Further, it is great for temperature range and it is good for new water pump. Most importantly, the permatex high temp silicone for exhaust manifold offers significant performance advantages which include outstanding oil resistance, excellent torque retention and hi-temp, sensor-safe properties.

Most buyers quickly discovered that the silicone is used to seal an oil pan and it worked perfectly. In addition, they strongly agree that silicone works for sealing thermoelectric coolers. In addition, they strongly agree that the silicone is a little less messy, but other than that it is great. To sum up, buyers found this to be one of the best silicone for daily purposes.

Top Customer Quotes:
  • This form a bead, comes with new gaskets and it is best for gasket repair.
  • The permatex silicone is flexible and handles the warping way better.
  • This can withstand pressure cooker.
  • This comes out at a nice consistent rate which helps.

Best For Your Application: Honda High Temp Silicone For Exhaust Manifold

Honda High Temp Silicone For Exhaust Manifold
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The Honda High Temp Silicone For Exhaust Manifold is suitable and reliable and fits well with your regular use. The Honda high temp silicone for the exhaust manifold used on the f350 front and there are many more. The part you are purchasing is a genuine oem factory original part. Moreover, it is very tacky and it dries quickly.

The silicone is great for bolts and it works perfectly. In addition, the silicone sets fast and it remains flexible. Lastly, the honda high tempsilicone for the exhaust manifold saves money, is good for the rear differential and it lasts a long time.

Almost all buyers found that the silicone is easy to work with and sealed up perfectly. Also, a few strongly agree that the silicone will definitely fix your issue because it may not, but for $12 it's worth a shot. Moreover, they say that this stuff is magic, it works way better than hightemp ATV gasket maker.

Top Customer Quotes:
  • Dries quickly, remains flexible, resists vibration.
  • The only recommended sealant for use on honda valve cover gaskets.
  • This is made with fast shipping and it is brand new.
  • This is the best sealant for honda engines.

Best For Oven Doors: Jb Weld High Temp Silicone For Exhaust Manifold

Jb Weld High Temp Silicone For Exhaust Manifold
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Compared with other silicones in this category, the jb weld high temp siliconefor the exhaust manifold has a convenient design. And, the jb weld high temp silicone for the exhaustmanifold is great for many automotive applications. Make sure this fits by entering your model number. The product is exposed to the moisture in the air, it forms a tough, waterproof seal on most surfaces. Finally, the jb weld hightemp silicone for the exhaust manifold is available in 3 different colors: black, red and grey.

Most buyers agree that the silicone can be used as a gasket not a reinforcement or weld repair. In addition, they say that the silicone does as like a rubberized gasket. In addition, they say that the silicone is great for cylinder head port mold making. To sum up, the tone of buyers is very positive and we believe that the silicone suits the purpose.

Top Customer Quotes:
  • The Manufacturer says: our heavy duty adhesives repair & restore it right the first time.
  • This is a filler if that makes sense.
  • This is dependable and it is great with great stuff.
  • This is good for good quality and it is best forexhaust manifolds.
Loctite Recommended Sealer
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The Loctite Recommended Sealer's material feels more premium than its price would suggest. The loctite recommended sealer is reliable, is made for good stuff and it is good for corrosion protection oils. Flexible gasketing material for use on rigid machined flanges with less than 0.015" (0.381 mm) gap. And, this is best for the next day, is used for exhaust manifolds and it is professional.

Lastly, the loctite recommended sealer is good for typical applications, is great with great stuff and it is great for stainless steel.

Almost all buyers quickly discovered that the silicone reduces cure time and strength. And, they strongly agree that the silicone is great for assembling the accessory cover and new gasket on a welcome o-320. Further, they strongly agree that the silicone is rated for use with refrigerants and will not harden or degrade with age. In short, the tone of buyers is very positive and we believe that the silicone suits the purpose.

Top Customer Quotes:
  • This is great for putting the outboard motor back together after a rebuild.
  • This will withstand several thousand psi.
  • This is a good choice forexhaust manifold use.
  • It is critical that the mating surfaces are extremely clean before applying.

Best For Stainless Steel: Loctite High Temp Silicone For Exhaust Manifold

Loctite High Temp Silicone For Exhaust Manifold
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The Loctite High Temp Silicone For Exhaust Manifold's material feels more premium than its price would suggest. The loctite high tempsilicone for exhaustmanifold has been designed to give outstanding performance in typical automotive gasketing applications including valve covers, rocker covers, oil pans, water pumps, end seals, intake manifolds, and rear axle housings. Make sure this fits by entering your model number. This product is typically used in applications with an operating range of -75.

Most importantly, the loctite high temp siliconefor exhaust manifold is typically used in applications up to 315 °c.

Why We Like This:
  • This is reliable and it is best for stainless steel.
  • Convenient curing. Tack-free in 1 hour. Full-strength in 24 hours.
  • Replaces almost any cut gasket or coats pre - cut gaskets to increase reliability.
  • Flexes with movement. Enhances load bearing & shock absorbing characteristics of the bond area.

Best For Specific Gravity: Pro Seal High Temp Silicone For Exhaust Manifold

Pro Seal High Temp Silicone For Exhaust Manifold
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Pro Seal offers a variety of silicone for personal choice and yet maintains quality in all the variants. Also, this is reliable and it is good for country of origin. Make sure this fits by entering your model number. Above all, the pro seal high temp silicone for the exhaust manifold will not foul computer sensors.

With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

Why We Like This:
  • New and hot releases.
  • Lot of satisfied buyers.