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Permatex 56521 High Performance Thread Sealant - Each


Brand: Permatex

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Product Description

Permatex High Performance Thread Sealant: Prevents Leakage From Vibration, Temperature Cycling & Extreme Pressures; Protects Against Rust, Corrosion And Galling Of Threads; Parts Repositionable After Application; Fixtures In Approximately 4 Hours And Is Fully Cured Within 24 Hours. Permatex Surface Prep Activator Reduces Fixture Time To 5 Minutes. Permatex, Made For The Professional. Oem Specified. Made In Usa. Parts Repopsitionable After Application. Protects Against Rust, Corrosion & Galling.


Suggested Applications: Stainless steel fittings, head bolts into through holes, oil PSI sending units/sensors, oil and coolant lines, intake manifold switches, rear axle fill plug, and fuel fittings.


Suggested Applications: Timing hole plug, oil hose fitting

Heavy Duty

Suggested Applications: Drain plugs, all tapered fittings



  1. For best results, clean parts with Permatex® Surface Prep activator.
  2. Knead tube of Thread Sealant before use.
  3. Apply sealant to leading threads of the male fitting, leaving the first thread free of sealant. Apply to only _?_of a thread turn. It is not necessary to apply to all threads.
  4. Assemble parts and tighten to recommended torque. Refer to Technical Data Sheet for complete information.

NOTE: Permatex® Thread Sealant seals threaded metal fittings on hydraulic, pneumatic, fuel, and cooling systems. It is not recommended for plastics or rubber.

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