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Cooling Solutions Experts

Did you know that 40% of engine downtime is cooling system related? Do you know what can happen if your cooling system is NOT treated properly? Do you have any of these problems?

  • Corrosion of the steel and cast iron surfaces
  • Hard water scale buildup
  • Fouling of the heater core with silica gel and phosphate sludge
  • Malfunction in block heater
  • Corrosion of the water pump impellers
  • Thermostat malfunctions
  • Improper fan operation resulting in overheating
  • Fouling of the radiator
  • Severe pitting of the wet sleeve liners
  • Water pump cavitation
  • Water pump seal failure
  • Hoses become soft and brittle
  • Corrosion of the copper or aluminum radiator cores
  • Solder corrosion and consequent solder bloom fouling

Penray has been treating all types of cooling systems in all types of engines for more than 30 years. We are proudly associated with the OE’s and thousands of truck fleets. We have billions of miles of proven service in the cooling system industry. We have products for conventional, fully-formulated, extended life, and automotive systems. We can protect you with liquids or filters. We can safely convert you from one system to another. We can test any coolant and give you accurate results quickly. We can give you the knowledge to maintain your cooling system.

Penray is the leader in cooling system treatments. Look for the Cooling Solutions ExpertsTM logo and trust Penray products for all of your coolant product needs