Permatex 80633 Thread Sealant with PTFE, 16 oz, Red

Overview

Permatex 80633 Thread Sealant with PTFE is an economical, general-purpose sealant designed to seal threaded fittings across air, oil, diesel fuel, and hydraulic systems. The PTFE-rich formula helps create durable, leak-resistant seals while remaining pliable through temperature swings and exposure to common shop fluids. Its red color makes it easy to identify during assembly, helping you work efficiently without guesswork.

With a broad temperature tolerance, this sealant stays flexible from frigid starts to hot operation, reducing the risk of hardening or cracking in demanding environments. The product is calibrated to perform under a range of pressures, offering a practical solution where tapes or pastes may fall short in reliability or cleanup.

Why choose Permatex 80633?

The 80633 formula is engineered to outperform traditional tapes and dopes for many metal-to-metal threaded connections. It resists common shop fluids and maintains a seal even as fittings experience vibration, thermal cycling, and exposure to lubricants. The flash point of the product is noted at 24°C, reflecting safe handling cues suitable for typical workshop settings.

• PTFE-based, general-purpose sealant for threaded joints
• Red, easy-to-identify bottle for quick selection in a busy workshop
• Resists pressure and common fluids in air, oil, diesel, and hydraulic systems
• Stays pliable from -65°F to 300°F, accommodating wide temperature swings

Applications and use cases

This sealant is well-suited for a variety of fittings and assemblies where a durable, removable seal is desirable without tapes or dopes. It is commonly used on:

• Air conditioning fittings
• Temperature sending fittings
• Hydraulic and diesel fuel system fittings
• Other metal threaded connections where a reliable seal is needed

Applications benefit from the product’s balance of ease of use, clean application with standard tools, and a practical shelf life that supports regular shop rotations. For best results, follow standard cleaning and torque recommendations for the fittings involved and apply a thin, even bead to the male threads before assembly. Store the bottle recapped to preserve pliability and performance over time.

Notes on handling and storage

Handle and store in accordance with general shop safety guidelines. The sealant’s pliable nature helps reduce the risk of brittle seals after thermal cycling, while its resistance to conventional shop fluids aids in long-term performance in mixed environments. Always check compatibility with your materials and fluids before use.