There are plenty of options available while buying rtv silicone rubber adhesive sealants in the market right now, and if you're confused regarding which one to go for, You have landed on the right page.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Permatex Gasket Maker READ REVIEW

Best For Coolant: Buy: Permatex Rtv Silicone Rubber Adhesive Sealant READ REVIEW

Best For Exhaust: Buy: Jb Weld Rtv Silicone Rubber Adhesive Sealant READ REVIEW

Best For High Heat Rrsistance: Buy: Jb Weld Rtv Silicone READ REVIEW

Best For Tensile Strength: Buy: Loctite Rtv Silicone Rubber Adhesive Sealant READ REVIEW

Best Overall: Permatex Gasket Maker

Buy on Amazon

We are personally inclined towards Permatex Gasket Maker, It is not so pricy, but it overachieves its purpose and is outstanding in important aspects. The permatex gasket maker seals perfectly and it is used for transmission fluid. Make sure this fits by entering your model number. This gasket maker meets performance specs of silicone gaskets and is specified.

Finally, the permatex gasket maker works as advertised, comes with great stuff and it goes on easily.

Most customers agree that the adhesive can be used for countless purposes, both in the engine cavity and around the house. Furthermore, a few also found that the silicone is about 32 degrees when used too. Also, a few also found that this is the best gasket sealer to seal engine oil, for oil pans, valve covers, intake manifold front and rear corner sealant, timing chain covers. Overall, at the price, they believe that they got a steal of a deal with it.

• These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties.
• This is filled with gear oil and it is designed for very straight - forward use.
• Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long - term durability.
• This is the best silicone for oil type sealing, always use it.

Best For Coolant: Permatex Rtv Silicone Rubber Adhesive Sealant

Buy on Amazon

We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate sealant. The Permatex Rtv Silicone Rubber Adhesive Sealant is exactly that - it's a simple sealant that hits all the right notes. The permatex rtv silicone rubber adhesive sealant offers significant performance advantages which include outstanding oil resistance, excellent torque retention and hi-temp, sensor-safe properties. Begins to squeeze out around the flange. In addition, silicone is used to coat the pre-cut gasket to increase reliability.

The sealant is good for temperature range and it is brand new. Most importantly, the permatex rtv siliconerubber adhesive sealant is best for gasket repair and it is excellent all the way.

Almost all customers found that the sealant was very high temperature.s. In addition, a few say that the sealant can make any gasket quickly. Further, they strongly agree that the silicone is an excellent RTV high temp sealant.

• This is great for good quality and it is good for new water pump.
• This is perfect for filling the voids and making what should be a permament seal.
• This works for sealing thermoelectric coolers.
• It holds strong, works perfectly and it is blue.

Best For Exhaust: Jb Weld Rtv Silicone Rubber Adhesive Sealant

Buy on Amazon

Next on the list, we've got yet another adhesive that manages to win our hearts. It's the Jb Weld Rtv Silicone Rubber Adhesive Sealant and it's widely considered as one of the most convenient adhesives you can buy. Also, the jb weld rtv silicone rubberadhesive sealant is dependable and it comes with great stuff. 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. Most importantly, the jb weld rtv siliconerubber adhesivesealant looks amazing in black color and is available in 2 other colors.

Most customers quickly discovered that the adhesive is great for cylinder head port mold making. In addition, they strongly agree that the adhesive does as like a rubberized gasket. Moreover, they also found that the sealant is a filler if that makes sense.

• This comes with a nozzle like it shows in the picture.
• This will not shrink or crack, resists weathering and is sensor-safe.
• This lets it cure and it is for exhaust manifolds.
• This can be used as a gasket not a reinforcement or weld repair.

Best For High Heat Rrsistance: Jb Weld Rtv Silicone

Buy on Amazon

Not everyone likes to purchase adhesive for their daily purpose, but the Jb Weld Rtv Silicone would be an anomoly. In addition, the jb weld rtvsilicone works perfectly and it is blue. Manufacturer says: Our heavy duty adhesives repair & restore it right the first time. The product is exposed to the moisture in the air. The silicone forms a tough, waterproof, gasket and seal on most surfaces. Finally, the jb weld rtv silicone is available in 6 colors: blue, red, black etc.,.

Most buyers found that the sealant is an easy to use material for making custom gaskets quickly. Also, a few say that the adhesive can be used on the engine to rebuild leaks. A great sealer is applied easily from the tube. Also, a few say that the silicone works great as always, but the plastic cap splits when screwed all the way down, letting the silicone in the tip of the tube to cure and set up, thus losing some silicone. In conclusion, most customers call the adhesive functionally comfortable and no one questions it.

• This cleans up easily when "wet" using shop towels and isopropyl/rubbing alcohol.
• This can be used on a motorcycle after changing stator.
• This works for delidding intel processors.
• This is used to seal a cracked glass stove top.

Best For Tensile Strength: Loctite Rtv Silicone Rubber Adhesive Sealant

Buy on Amazon

The Loctite Rtv Silicone Rubber Adhesive Sealant should be able to handle its purpose and duties with ease. The loctite rtvsilicone rubberadhesive sealant is used for corrosion prevention oils and it is for corrosion protection oils. Make sure this fits by entering your model number. The product works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces.

The silicone works quickly and it seals well. In addition, the silicone can be used as a form-in-place gasket for pumps, thermostats, compressors, transmission housings and axle covers. Above all, the loctite rtv silicone rubber adhesivesealant is great for typical applications and it is reliable.

One customer says - "include valve covers, oil pans, intake manifold end seals, timing covers, water pumps, thermostat housings. ". Most customers quickly discovered that the adhesive is easy to control the amount of silicone dispensed.

• Convenient curing. With primer, set in 15m – 2hrs. Without primer, set in 1-12hrs.
• This is proven to be tolerant of minor contamination due to industrial oils, e.g.
• This provides resistance to low pressures immediately after assembly of flanges.