Application guide / Version 1.0
Glycol percentage is the beginning of the specification
Understand why concentration, formulation, and equipment requirements belong in the same purchasing conversation.
Identify the complete formulation
Dow describes DOWFROST LC 25 as a formulated coolant with a specialized inhibitor package. Its product information is evidence about that named formulation. It does not establish equivalence with another fluid sharing the same nominal glycol concentration.
Use the actual equipment requirement
The NVIDIA CS8500 manual calls for a ready-to-use PG-25 coolant in that system. Treat this as a requirement for the identified equipment, not a universal instruction for every data center. Record the approved fluid designation and confirm the applicable manual revision with the equipment owner.
Make concentration unambiguous
On a purchasing worksheet, record the concentration basis, the supplied condition, and the document that defines the requirement. A percentage without its basis leaves room for an avoidable misunderstanding. Ask the supplier to identify the formulation and documentation for the exact product being quoted.
- Is concentration specified by mass or volume?
- Is the material ready to use or a concentrate?
- What evidence supports the proposed formulation under the intended conditions?
- Does the existing system contain the same fluid?
- Who must approve a change before procurement proceeds?
Put the questions into a purchasing brief
Record your equipment requirements and unresolved questions. Export the brief for your engineering team or supplier.
Open the worksheet →Revision record
1.0 · September 10, 2026 — Initial source-based edition. No original testing or equipment qualification is claimed.
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