Penray Conventional Inhibitor 2797

Penray 2797 is an advanced antifreeze inhibitor package featuring a low-silicate, phosphate-free formula to provide trouble-free service in autos and light duty gasoline or diesel trucks.

Antifreeze/coolant made with glycol consistent with ASTM E1177-14 and Penray 2797 is compatible with CAT EC-1 and other specifications listed below. Penray 2797 offers easy, economical, efficient blending procedures. A concentrated formula, Penray 2797 is added to pure glycol at 2.2% volume to the product specifications and benefits. Adding an addition 2% of water is optional to minimize product cost. The finished product will meet ASTM automotive (light duty) specifications and may also be used in diesel engines with traditional supplemental coolant additive.

Store above 50° F (10° C) to prevent gelling.


  • Excellent aluminum corrosion protection
  • Cost effective alternative to ELC
  • Single system technology offers the easiest method of manufacturing
  • Low silicate formulation
  • Phosphate & amine free
  • Lubricity agents extend water pump life


  • ASTM D-4985
  • ASTM D-6210
  • ASTM D-3306
  • TMC RP-323

Blending Instructions for Penray 2797

50/50 Pre-dilute coolant contains 1.1% by volume of 2797
Concentrate Contains 2.2% by volume of 2797


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