Is Permatex 51813 the same as Loctite 518?
Rachel Ross
Updated on May 17, 2026
Is Permatex 51813 the same as Loctite 518?
Gasket Makers There’s a minute difference between the Permatex 51813 Anaerobic Gasket Maker and the Loctite 518 Gasket Sealant. They both fill tiny gaps, with the Loctite going for as small as 0.01 inches, while the Permatex is limited to 0.015 inches.
Which permatex for head bolts?
59214 Permatex Thread Sealant Use With Head Bolts Into Through Holes/
Is permatex water resistant?
Permatex® Clear RTV Silicone Adhesive Sealant is waterproof and flexible. Temperature range -75°F to 400°F (-59°C to 204°C); resists water, weather, and vibration.
Are Loctite and Permatex the same company?
The Permatex Company has a New Owner. The Permatex Company was sold to Loctite Corporation. The business was moved to Cleveland, Ohio and integrated with the Woodhill Chemical Company.
Which is better Loctite or permatex?
A small difference between this Loctite and the 5183 counterpart is the gap support: Loctite 518 fills gaps up to 0.25mm (0.01”) while Permatex 5183 goes wider with gap support of up to 0.38mm (0.015”). Both of these are anaerobic gasket makers/flange sealants. You want to use them with metal parts and machinery.
What is the difference between Loctite 515 and 518?
A. These are both anaerobic flange sealants designed for rigid machined flanges. They are similar products, one of the key differences being that Loctite® 518 is better for use on aluminum flanges. Thus, Loctite® 518 can replace Loctite® 515 for most applications.
Should I put sealant on head bolts?
For head bolts that extend into a coolant jacket, coat the threads with a flexible sealer. Failure to coat the threads may allow coolant to leak past the bolt. If a bolt is too short and only engages a few threads in the block, it may pull the threads out of the block.
What’s the best sealant for head bolts?
Loctite Headbolt & Water Jacket Sealant is a single-component anaerobic hybrid that lubricates fasteners during assembly, as well as seals the gaps between the threads.
What is Permatex Ultra Black used for?
Use the powerful and efficient Permatex Ultra Black Gasket Maker in automotive assembly and other applications. This fast-curing silicone gasket maker prevents leaks and wastage of gas and fluids between connecting surfaces in automotive and marine setups.
Is Permatex Ultra black waterproof?
Permatex Ultra Black RTV silicone adhesive is designed to provide a waterproof, flexible, weather-resistant seal around metal, glass, rubber, and more. It’s made to withstand temperatures of up to 500 degrees F.
Who owns permatex?
Illinois Tool Works
Permatex, Inc.
Permatex Canada Inc/Parent organizations
Permatex is a division of ITW (Illinois Tool Works Inc.), a US based, NYSE listed corporation, founded in 1912. ITW is a Fortune 200 diversified manufacturing company.
What is the intended use of Permatex green Threadlocker?
Permatex Penetrating Grade Threadlocker Green Formula is a low viscosity threadlocking liquid that wicks along the threads of preassembled fasteners to secure them in place. Since it is applied after assembly, preventive maintenance procedures are simplified.