Coolant for liquid-cooled equipment

Data Center & Hydro Miner Coolant Finder

Glycol coolants and deionized water for liquid-cooled data centers, CDUs and hydro-cooled miners, matched to the equipment maker's published coolant rules. Blended and shipped from Taylor, Texas, with a certificate of analysis on every lot.

See the coolant Get a tote quote

01

The short answer

Quick answer

Pick your equipment or the fluid you use today, and the page for it lays out the maker's coolant rules next to our product, line by line, including where we do not meet them. We blend inhibited ethylene and propylene glycol coolants and deionized water in Taylor, Texas, and ship them in pails, drums and 275- or 330-gallon totes with a certificate of analysis on every lot.

AI data hall with direct-to-chip liquid cooling: server racks with blue and orange coolant manifolds and a coolant distribution unit at the end of the aisle
02

Find your coolant

Pick your equipment or the fluid you use today.

By equipment

Equipment Models What we supply
Bitdeer SealMiner Hydro A2 Hyd, A2 Pro Hydro, A3 Hydro, A3 Pro Hydro, A4 Pro Hydro, A4 Ultra Hydro Inhibited Ethylene Glycol 40/60, Nitrite-Free
Bitmain Antminer Hydro S21 XP Hyd, S21 XP+ Hyd, S21 / S21+ / S21e Hyd, S19 XP Hyd, S19 Pro Hyd, S23 Hyd Inhibited Ethylene Glycol 40/60, Nitrite-Free
Inhibited Ethylene Glycol 40/60 with OAT-908
Bitmain ANTSPACE HK3 hydro container ANTSPACE HK3 V2, ANTSPACE HK3 V6, ANTSPACE HD5 Inhibited Ethylene Glycol 40/60, Nitrite-Free
MicroBT Whatsminer Hydro M63 / M63S / M63S+ / M63S++, M53 / M53S / M53S+ / M53S++, M33S+ / M33S++, M64, M65, M54S++ Ethylene Glycol ACS Grade
Ethylene Glycol 40/60

By the fluid you are replacing

Fluid Brand owner Our alternative
Antifrogen N Clariant Inhibited Ethylene Glycol 40/60, Nitrite-Free
DOWCAL 100E Dow Inhibited Ethylene Glycol 40/60, Nitrite-Free
DOWFROST Dow Inhibited Propylene Glycol 30/70 with OAT Inhibitor
Inhibited Propylene Glycol 50/50 with OAT Inhibitor
100% Propylene Glycol Inhibited
DOWFROST HD Dow 100% Propylene Glycol Inhibited
Inhibited Propylene Glycol 40/60 with OAT Inhibitor
DOWTHERM SR-1 Dow 100% Ethylene Glycol Inhibited
Inhibited Ethylene Glycol 50/50 with OAT-908
Inhibited Ethylene Glycol 40/60 with OAT-908
KOSTChill PG HD KOST USA 100% Propylene Glycol Inhibited
Inhibited Propylene Glycol 30/70 with OAT Inhibitor
03

What to order

The products that fit this spec, and what each one is for.

Nitrite-free specs

Inhibited Ethylene Glycol 40/60, Nitrite-Free

For equipment makers that require nitrite-free coolant: 40% ethylene glycol, sodium benzoate inhibitor, ready to fill.

Freeze point: about -25 °C (-13 °F) typical · Quart to 330-gallon tote · COA with every lot

See sizes and pricing TDSSDS
General closed loops

Inhibited Ethylene Glycol 40/60 with OAT-908

40% ethylene glycol with a nitrite-containing hybrid organic-acid inhibitor, for loops where nitrite is acceptable.

Freeze point: approx. -22 °C (-8 °F) typical; -21 °C (-6 °F) max, at 40 wt% ethylene glycol · Quart to 330-gallon tote · COA with every lot

See sizes and pricing TDSSDS
Flush and make-up

Deionized Water ACS Reagent Grade

Conductivity under 1 µS/cm for flushing, blending and evaporative top-off.

Quart to 330-gallon tote · COA with every lot

See sizes and pricing TDSSDS

Need a different concentration? We blend to the freeze point you specify, in pails, drums and 275- or 330-gallon totes.

04

Rules that apply to almost every loop

What the equipment makers' coolant guides have in common.

WaterDeionized or distilled water only, for blending, flushing and top-off. Tap and softened water add chloride and hardness.
Glycol strengthThe lowest concentration that covers your coldest fluid temperature plus margin; stronger glycol moves less heat.
Aluminum cold platesMost hydro miners use aluminum plates and ban copper in the loop. Check whether your maker also requires a nitrite-free coolant.
Never mix chemistriesChanging coolant means drain, flush with deionized water and refill, not topping up with a different product.
TestingpH, conductivity, reserve alkalinity and appearance every few months; metals and ions twice a year; replace on the maker's schedule.

Source: each equipment maker's published coolant documentation, linked on every page.

05

Questions

Which coolant does my liquid-cooled equipment need?

Start with the equipment maker's coolant guide; it sets the glycol type and strength, the water-quality limits and any banned inhibitors such as nitrite or silicate. Each page above lays those rules out for one family of equipment.

Ethylene glycol or propylene glycol?

Ethylene glycol moves more heat at the same strength and stays thinner when cold. Propylene glycol is chosen where lower toxicity matters. Many hydro miners allow either; most direct-to-chip server loops specify propylene glycol.

Do you sell a nitrite-free propylene glycol 25% (PG25)?

Not today. Our propylene glycol premixes use a nitrite-containing inhibitor. Our nitrite-free coolant is the ethylene glycol 40/60 premix.

How fast can you deliver?

Stocked drums ship in about 1 to 5 days. Truckload tote orders are quoted with a lead time when you send the site and quantity.

Do you provide documents for submittals?

Yes. Every product has a technical data sheet and SDS online, and the technical submittal page collects them in one place.

Quote a fill

Tell us the site, the number of totes or the system volume, and the date the coolant has to be on site. We reply with pricing, freight and lead time.

Related: texas hydro mining coolant freeze protection · glycol heat transfer fluid technical submittal · chemicals for data center cooling

Equipment and fluid names are trademarks of their respective owners. Alliance Chemical is not affiliated with or endorsed by any equipment maker or fluid brand named on these pages.