Finding the best gasket sealer engine suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube
Feature
Most advanced, high temp RTV silicone gasket availableThree 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
Description
Permatex Ultra Copper Maximum Temperature RTV Silicone Gasket Maker is the most advanced, high temp RTV silicone gasket available. Three times more oil resistant than conventional silicones and eight times more flexible than cut gaskets, it is sensor-safe, low odor, and non-corrosive with superior adhesion. Highest operating temperatures for 4-cylinder, turbocharged or high-performance engines and OEM specified, with a temperature range of -75 degrees fahrenheit to 700 degrees fahrenheit intermittent. Also resists auto and shop fluids and vibration. These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties. Extended warranties, engine sensors and new component materials such as aluminum, bi-metal alloys and high-tech plastics, have created the need for superior RTV silicone gasket makers in both OEM production and service applications. Permatex always has the right gasket maker for your application.2. Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube
Feature
Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durabilitySuperior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
Retains high flexibility and eliminates the need for pre-formed, pre-cut, paper, rubber or cork gaskets; OEM specified and approved for dealership warranty requirements
Temperature Range -65F to 500F (-54C to 260C) intermittent
Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, and differential covers
Description
Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker is a fast-curing, sensor safe, low odor, non-corrosive formula that retains high flexibility, and oil resistance properties through use of a patented adhesion system. This gasket maker meets performance specs of OE silicone gaskets and is OEM specified. For dealership warranty requirements it also ensures extended drivetrain warranty compliance. Temperature range -65 degrees fahrenheit to 500 degrees fahrenheit intermittent; resists auto and shop fluids and vibration. These gasket makers offer significant performance advantages, excellent torque retention and hi-temp, sensor-safe properties. Extended warranties, engine sensors and new component materials such as aluminum, bi-metal alloys and high-tech plastics, have created the need for superior RTV silicone gasket makers in both OEM production and service applications. Permatex always has the right gasket maker for your application.3. CRC 5371 Copper Block Weld Permanent Block & Radiator Sealer, 16 Fl Oz
Feature
Block and Radiator SealerModified liquid glass formula
Not VOC Compliant for California & OTC
Permanent block and radiator sealer
Description
The Copper Block Weld permanently repairs cracks in iron and aluminum heads, radiators and freeze plugs using a copper ceramic sealing system.4. Bar's Leaks 1111 Head Gasket Fix - 24 oz.
Feature
Stops block leaksSeals cracked cylinder heads and blocks
Repairs blown head gaskets
Description
If the words blown head gasket make you nervous, were right there with you. We know firsthand that fixing a blown head gasket requires a hefty chunk of change and a few days without your car. Who has time to spend taking their car to the shop for a blown head gasket? And who has the extra cash to pay for a blown head gasket without planning for it? No, visiting the shop for a blown head gasket fix isnt ideal. But what if we told you it was possible to fix this yourself with one of the most reliable blown head gasket solutions on the planet? Our easy-to-use Bars Leaks Head Gasket Fix will not only save you all that cash, but also get you back on the road in less than an hour. At Bars Leaks, we specialize in creating chemical repair solutions that are fast, easy, effective and affordable. Rather than spending hundreds or thousands of dollars at the repair shop, you spend just a few dollars and all without any of the inconvenience. This product contains a combination of antifreeze-compatible sodium silicate sealing liquid and various gasket-sealing particles that penetrate gaps and cracks and harden to permanently stop leaks. Its liquid technology for damaged, leaking or blown head gaskets, and with over two million bottles sold, you can count on it to perform. We have a team of top-flight chemical engineers who are always innovating and pursuing ways to improve our existing products. As auto manufacturers introduce new technologies, we offer new products that will help everyday drivers save time and money through fast and effective solutions. Using our head gasket repair liquid is easy. Simply follow along with Bobby and Caitlin in our how-to video to safely and quickly get your car back on the road. Theres no reason a blown head gasket should sideline your life.5. Blue Magic 1008 Liquid Glass Metallic Seal-Up - 11.4 oz.
Feature
Permanent cooling system sealerLiquid glass and copper formula
Seal withstands up to 2000 degrees Fahrenheit
Forms permanent copper-ceramic seal
For use in systems up to 6 gallons
Description
CarGo Seal-Up liquid glass metallic formula will seal cracks permanently. Works excellent on sealing engine blocks, radiators, heater cores and freeze plugs.6. CRC 401232 Permanent Head Gasket & Block Repair with Nanotechnology - 32 fl. oz.
Feature
Uses nanotechnologyFills cracks and crevices
Makes a stronger bond
Permanently hardens to surface area
Applications include automobiles, buses and trucks
Description
For nearly 50 years CRC has gained the respect of technicians, drivers and distributors alike by providing superior quality products they can count on and you can too. From brake and electrical maintenance to grease, gear oil and diesel additives, CRC has got you covered. Our ISO 9001:2000 certified R&D and manufacturing facilities focus on new technology, quality and consistent manufacturing. CRC is committed to leading the way with cutting edge products to better serve the professional technician and the do-it-yourselfer. Using Nanotechnology, this product fills in cracks and crevices other products can't, making a stronger, more solid bond that's permanently hardened to the surface area.7. BlueDevil Head Gasket Sealer - 32 ounce(38386)
Feature
Contains no solid or particulate matter that can harm a vehicles engineAlternative solution for costly and time consuming repairs
Safe and easy to use
Permanent Repair
Description
BlueDevil Head Gasket Sealer will repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs.8. Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
Feature
Repairs blown head and intake gasket leaksSeals cracked cylinder heads and blocks
Stops heater core and radiator leaks
Fixes leaking freeze and core plugs
