CHORUS offers a selection of corrosion inhibitors for vehicle antifreeze/coolant, including:
- OAT corrosion inhibitor package;
- HOAT corrosion inhibitor package;
- Component chemicals in the coolant, e.g. BTA, TTA.
Components of Automotive Coolant
Generally, most automotive coolants/antifreeze are composed of
- Ethylene glycol (MEG) or Propylene glycol: down the freezing point, and increase the boiling point.
- Water: main thermal transfer fluids.
- Additives: rust inhibitors, pitting inhibitors, dispersants, defoaming agents, dyes, and other chemicals.
AC 7040 & AC 7015 are coolant corrosion additive packages, Blending the package with water, MEG, defoamed and dyes at a formulated ratio, the manufacturers will get the finished car coolants.
Main Corrosion Test for Engine Coolants
Normal methods to evaluate the anti-corrosion performance of antifreeze/coolant.
Simulated Service Corrosion Testing of Engine Coolants
Corrosion Test for Engine Coolants in Glassware
Corrosion Test of Cast Aluminum Alloys
Cavitation Corrosion test of Aluminum Pumps
Coolant/Antifreeze Corrosion protection performance
- Glassware corrosion (88℃/336h): Mass change of 6 metal test pieces (such as copper ±10mg).
- Simulated use corrosion (88℃/1064h): More stringent long-term corrosion test.
- Cast aluminum alloy heat transfer corrosion (135℃/168h): High temperature and high pressure special test (±1.0mg/cm²).
- Aluminum pump cavitation corrosion: ≥8 level (ASTM D2809 method).
Chorus AC7040 has passed the ASTM D3306 testing by SGS.
We're professional coolant corrosion inhibitor manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy customized coolant corrosion inhibitor at competitive price from our factory. Contact us for more details.