We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Loctite

Loctite Krytox RFE PFPE O-Ring Lubricant 2 oz tube NLGI Grade 2 29710

SKU CH-6RVX-3111G

PFPE-based O-ring lubricant extends seal life across a -15 °F to 500 °F range in a 2 oz tube

  • Extends seal life with PFPE formulation
  • Operates from -15 °F to 500 °F
  • Non-flammable and oxygen-compatible for safety
  • Resists chemicals and water in harsh environments
  • Compatible with most plastics, rubbers and metals

High-performance PFPE O-Ring Lubricant

Loctite Krytox RFE is a synthetic perfluoropolyether grease supplied in a 2 oz tube. It is designed to extend the service life and efficiency of seals and gaskets across demanding environments. The white NLGI Grade 2 compound provides lubrication for moving or sliding parts.

Suited for engineers maintaining oxygen systems

The lubricant is nonflammable and oxygen-compatible, making it appropriate for high-purity and safety-critical applications. It resists water and a wide range of chemicals while remaining compatible with most plastics, synthetic rubbers, and metals. Buyers needing a metal-detectable formula or a food-grade certification should look elsewhere.

Check material compatibility

Verify that the operating environment stays within the -15 to 500 degrees F range before specifying this grease. Confirm that the specific gravity of 1.95 and the PFPE base chemistry suit the sealing materials in your assembly. No dropping point or four-ball wear data is published for this grade.

Highlights

  • Extends seal life with PFPE formulation
  • Operates from -15 °F to 500 °F
  • Non-flammable and oxygen-compatible for safety
  • Resists chemicals and water in harsh environments
  • Compatible with most plastics, rubbers and metals

Specifications

BrandLOCTITE

Questions about this item

What temperature range must my seals withstand to use this PFPE lubricant?

The grease is rated from -15 degrees to 500 degrees F, so seals and O-rings must survive within that window.

Will this white NLGI Grade 2 compound degrade older plastic or rubber parts I keep in the assembly?

It is compatible with most plastics, synthetic rubbers and metals, and resists chemicals and water without attacking those materials.

How can I confirm the tube contains the correct high-specific-gravity PFPE grease after opening?

The product is a white synthetic grease with a specific gravity of 1.95, matching the Loctite Krytox RFE formulation.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.