8/3/2019 How to Read a Coolant Report

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TECH

NICALBULLETIN

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Coolant analysis can identify the onset of several problems that can lead to potential cooling system failure.Corrosion, Supplemental Coolant Additive (SCA) deficiencies or excesses and inadequate freeze pointprotection are just a few of the many destructive conditions that can cause major systems damage.

The POLARIS Coolant Analysis Report is easy to read and offers detailed conclusions and maintenancerecommendations that will enable you to reduce major repairs and increase equipment uptime, productivityand safety.

How to Read a CoolantAnalysis Report

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Data Analyst Initials

Adequate pH range is vital tocorrosion inhibition and shouldremain between 7.5 and 11.0.

Gradual buildup ofTotalDissolve Solids (TDS) such asinhibitor chemicals, silicates,contaminants and waterhardness compounds can lead towater pump leakage. TDS levelsshould not exceed 4%. Shouldleakage occur, drain coolant andlush um with ta water.

POLARIS analysts provide youwith maintenancerecommendations based on in-depth analysis, taking theguesswork out of interpreting

Adequate Glycol levels must bemaintained to ensure proper

freeze point protection. Highglycol can cause additive dropout and decrease coolant life. Aglycol range of 40% to 60% is

The Current Sample is listedfirst. As many as four precedingsamples may also be included.

Equipment and Coolantinformation tells your lab whenthe sample was taken and howmany miles/hours are on both theunit and the coolant. Referencingthe Lab Sample Numberindicates the lab location wheretesting was completed and willexpedite any questions

Silicon protects cooling sysmetals. Sudden introductionlarge amounts of antifreezeSCAs high in silicates can cradiators and heaters as werestrict engine coolant passRapid failure of water pumpmay result. For accurate sillevel evaluation, also test ne

Excessive Nitrite levels canto solder corrosion. Themaximum acceptable is 33ppm (parts per million).

Corrosion occurs when buare no longer able to counteformation due to thermaldegradation.Typical Corrosion ProducSources:Ironliner, water pump, cyblock/headAluminumradiator tankscoolant elbows, piping, spacplates, thermostat housingsCopperradiator, oil cooleaftercooler, heater coreLeadradiator solder, oil coaftercooler, heater core

An SCA(Supplement CooAdditive) Level of 1.2 is thminimum required for adeqliner pitting protection. A lev2.5 is ideal for extending colife.

Without adequate phosphatborate Buffers, acids form,corrosion begins and rapidadditive depletion will occurto reduced pH values. Cylinliner pitting will result.