Glycol-Based Fluids
Glycols
Glycols are chemical compounds used in many industries for heat transfer, dehydration, and elevated temperature circumstances. Coastal Chemical offers a wide range of glycols across several major manufacturers. Our quality assurance program ensures our customers receive only the purest glycols available, with Certificates of Analysis (COA) available.
As one of the largest glycol distributors in North America, Coastal can meet and assist in your choices, designs and operational processes.
Our lines of flycols and coolants include:
- Ethylene Glycol (EG)
- Diethylene Glycol (DEG)
- Inhibited Ethylene Glycol
- Triethylene Glycol (TEG)
- CoastalGuard® Coolants
- HBC Universal
(EG) Ethylene Glycol, also known as (MEG) Monoethylene Glycol is a colorless, practically odorless, low-volatility, low-viscosity, hygroscopic liquid. It is completely miscible with water and many organic liquids.
The reactivity and solubility of ethylene glycol provide the basis for many applications. The widespread use of ethylene glycol as an antifreeze is based on its ability to lower the freezing point when mixed with water.
The oil and gas industry uses EG for various operations, including: propane refrigeration units, line heaters, pipeline hydrate depression, and other water dewpoint depression procedures.
Diethylene glycol is a colorless, low-volatility, low-viscosity, hygroscopic liquid. Under normal conditions, diethylene glycol has no detectable odor; however, under high vapor concentrations, a slightly sweet odor may be detected. It is completely miscible with water and many organic liquids.
Because of its higher molecular weight, diethylene glycol is considerably less volatile than ethylene glycol and differs sufficiently in that it has specialized uses. The reactivity and solubility of diethylene glycol provide the basis for many applications. The end uses for diethylene glycol are numerous.
TEG is commonly used for gas dehydration and treating, heat transfer fluids, solvents, coolants, and chemical intermediates.
Triethylene glycol is a transparent, colorless, low volatility, moderate-viscosity, water-soluble liquid. Under normal conditions, there is no detectable odor; under high vapor concentrations, a slightly sweet odor may be detected. It is completely miscible with water and many organic liquids.
Triethylene glycol has properties similar to other glycols and may be used preferentially in applications requiring a higher boiling point, higher molecular weight or lower volatility than
diethylene glycol.
CoastalGuard is a premium engine coolant used throughout the oil and gas industry. It is an inhibited ethylene glycol used as a heavy-duty industrial coolant for engines and heat transfer fluid meeting modern OEM requirements for industrial engines and cooling systems as required in the ASTM 6210-D coolant specification. CoastalGuard EG is commonly used in aqueous dilutions from 25 to 60% by volume. The inhibitor system is designed to protect brass, copper, solder, steel, cast iron, aluminum, and other metals commonly found in industrial cooling and heating systems. Coastal Chemical provides technical support for CoastalGuard products via coolant sampling and laboratory testing. Results are reviewed and recommendations are made to ensure proper coolant quality.
CoastalGuard PG is a specially inhibited concentrated propylene glycol product designed for use in closed loop heat transfer systems, radiators, and engine jackets. CoastalGuard PG is commonly used in aqueous dilutions from 25 to 50% by volume. The inhibitor system formulated into CoastalGuard PG provides excellent corrosion protection for common metals of construction. CoastalGuard PG also contains the necessary inhibitors to prevent wet sleeve liner cavitation corrosion, also meeting ASTM 6210-D requirements. The inhibitor level of the product can be monitored periodically and replenished when necessary without replacing the fluid itself.
Coastal TEG-Plus is Triethylene Glycol containing a patented inhibition package formulated to minimize corrosion, fouling, and glycol degradation. A glycol unit using Coastal TEG-Plus will operate more efficiently and reliably than one using regular TEG.
HBC Universal is a fully formulated, inhibited ethylene glycol used as a heavy-duty industrial coolant, heat transfer agent, and antifreeze meeting specifications for heavy duty engines. The inhibitor system includes a precharge of Supplemental Coolant Additives (SCA) designed to protect metals commonly found in cooling and heating systems. Special inhibitors designed to reduce cavitation corrosion in wet sleeve liner applications are included.
HBC Universal is recommended as a universal coolant for heavy-duty engines in applications such as natural gas processing, drilling, trucks, farm equipment, power generating systems, oilfield operations, and portable air compressors. HBC Universal protects cooling systems from freezing in winter, overheating in summer, and corrosion in all seasons. HBC Universal is commonly used I aqueous dilutions from 20 to 50% by volume.
ThermGuard EG is a cost-sensitive line of coolant used throughout the oil and gas industry. It is an inhibited ethylene glycol used as a heavy-duty industrial coolant and heat transfer fluid. The inhibitor system is designed to protect brass, copper, solder, steel, cast iron, aluminum, and other natural metals commonly found in industrial cooling and heating systems. ThermGuard® 100 is commonly used in an aqueous dilution from 20 to 50% by volume.
ThermGuard PG is a specially inhibited concentrated propylene glycol product designed for use in closed-loop heat transfer systems, radiators, and engine jackets. ThermGuard PG is commonly used in aqueous dilutions from 30 to 50% by volume. The inhibitor system formulated into the ThermGuard PG provides excellent corrosion protection for common metals of construction. ThermGuard PG also contains the necessary inhibitors to prevent wet sleeve liner cavitation corrosion.
FluidGuard EG is an inhibited ethylene glycol solution used to protect brass, copper, solder, steel, cast iron, aluminum, and other natural metals commonly found in industrial and commercial cooling and heating systems. The solution provides for long fluid life, corrosion protection, and leak protection in piping, pumps, valves, and fittings. FluidGuard EG is commonly used in aqueous dilution from 20 to 60% by volume. These levels provide freeze protection between -9°C and -46°C.
FluidGuard PG is a specially inhibited propylene glycol solution designed specifically for use in closed-loop heat transfer systems. FluidGuard™ PG 100 is commonly used in aqueous dilutions from 20 to 50% by volume. This inhibitor system is formulated to provide corrosion protection and leak protection in piping, pumps, valves, fittings, and other heating and cooling equipment.
Coastal Chemical offers a line of supplemental additives to refresh the protective properties of our CoastalGuard coolant line. This includes inhibitor packages for wet sleeve liner protection, increasing the pH and reserve alkalinity (RA) of the antifreeze/coolant solution, and additives designed to protect yellow metals in contact with EG and PG-based antifreeze/coolants.
Additives included are:
- CoastalGuard 766
- CoastalGuard 768
- CoastalGuard 2000- S
Support and Testing
Coastal Chemical provides technical support for glycols and inhibited glycol products via our fully staffed laboratory with the capability for sampling and testing. Results are reviewed, and recommendations are made to ensure proper coolant quality.
Our propylene glycol-based products are specially inhibited concentrated propylene glycol designed for use in closed-loop heat transfer systems, radiators, and engine jackets. The inhibitor level of the product can be monitored periodically and replenished when necessary without replacing the fluid itself.
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