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Keller-Heartt has Truegard Propylene Glycol Heat Transfer Fluids in both Inhibited and Food Grade! Order Today!
Propylene Glycol Available. Order Today!

Frequently asked questions

Find answers to common questions about our products and services
  • NLGI Grade 2 is a medium-consistency grease - roughly the texture of peanut butter - and is the most widely specified grade for industrial and automotive bearing applications. It provides enough body to stay in place within standard bearing housings while still being pumpable through most grease guns and centralized lubrication systems.

  • The EP2 designation (visible in the product data sheet filename) means this grease contains extreme pressure additives that form a protective film under high-load or shock-load conditions, preventing metal-to-metal contact and reducing wear. This makes it appropriate for heavily loaded bearings and components where a standard grease would be quickly displaced or fail.

  • The High Temp designation indicates the grease is formulated to resist softening, oil separation, and oxidation at elevated operating temperatures, making it well suited for bearings near heat sources such as ovens, kilns, or high-friction industrial machinery. For specific minimum and maximum operating temperature limits, refer to the product data sheet.

  • NLGI Grade 2 grease works with most standard follower-plate pail pumps and grease guns designed for 5-gallon containers, making it practical for shop or fleet maintenance environments. Confirm your pump's pressure and viscosity ratings against the product data sheet before use.

  • Mixing greases with different thickener systems can cause incompatibility, resulting in softening or hardening that compromises lubrication. Best practice is to purge the old grease from bearings or housings before introducing this product; consult the product data sheet for specific compatibility guidance.