Part No. 2706


Nitrited Hybrid Organic Acid Technology (N HOAT) for heavy duty & automotive applications.

Penray 2706 is an advanced hybrid antifreeze/coolant inhibitor package that combines conventional low silicate and organic acid chemistry for cost effective, superior protection against corrosion. This hybrid technology inhibitor provides exceptional protection against wet sleeve liner pitting/cavitation and cooling system corrosion.

Antifreeze/coolant made with glycol consistent with ASTM E 1177 14 and 2706 may be used in heavy duty diesel engines Penray’s 2706 single system technology offers the easiest method of manufacturing a N HOAT antifreeze/coolant.


  • The simplicity of single system technology reduces manufacturing time and cost
  • Up to 300,000 mile cooling system corrosion protection
  • Combines cost effectiveness of Conventional with long life protection from ELC technology
  • Outstanding aluminum protection
  • Wet sleeve liner protection against pitting and cavitation
  • Lubricity agents extend water pump life


  • ASTM D-6210
  • ASTM D-3306
  • TMC RP-364
  • TMC RP-323
General Information 50/50: Pre dilute coolant contains 1.6% by volume of 2706
Concentrate Contains 3.2% by volume of 2706
Storage Above 3232°F (0 0°C) to prevent freezing.
Product Weight 575 lbs./ 55 gallons
Color 575 lbs./ 55 gallons

Blending with Penray technology produces industry leading coolants.


This product can expose you to chemicals including Methanol, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to