Technical Reference Charts
Interactive data visualizations for propylene glycol concentration, pricing, operating ranges, application compatibility, and certification requirements.
Freeze vs. burst protection: The burst point is always lower than the freeze point. PG solutions form a slush (not a solid block) when they freeze, so pipes won’t burst until well below the freeze temperature. This gives you a meaningful safety margin.
TRUEGARD
Sinopec
DOWFROST
NovaGlycol offers the lowest per-gallon price across all three certification tiers. Tote pricing saves an additional $0.50–2.50/gal vs. drums. Empty bars indicate the competitor doesn’t offer that specific product.
Known spec gap: NovaGlycol products are rated to 250°F max operating temperature. DOWFROST HD (325°F) and Dynalene PG-XT (350°F) exceed this ceiling. If your system operates above 250°F, verify compatibility before ordering.
Recommended — best-fit product
Compatible — will work
Not appropriate
| Industry | Ind. 50/50 | Ind. 100% | NSF 50/50 | NSF 100% | USP 50/50 | USP 100% |
|---|---|---|---|---|---|---|
| HVAC & Process Cooling | ★ | ★ | ✓ | ✓ | ✓ | ✓ |
| Boilers & Hydronic Heat | ★ | ★ | ✓ | ✓ | — | — |
| Ice Rinks | ✓ | ★ | — | — | — | — |
| Geothermal / Solar | — | ★ | — | — | — | — |
| Breweries & Wineries | — | — | ★ | ★ | ✓ | ✓ |
| Dairies & Meatpacking | — | — | ★ | ★ | ✓ | ✓ |
| Food-Service HVAC | — | — | ★ | ✓ | ✓ | — |
| Pharmaceutical Mfg | — | — | — | — | ★ | ★ |
| Cosmetics / Personal Care | — | — | — | — | ★ | ★ |
| Kosher Food Production | — | — | — | — | ★ | ★ |
USP + Kosher is severely underserved. Only NovaGlycol and TRUEGARD explicitly market USP + Kosher certified inhibited PG heat transfer fluid. This is a meaningful advantage for Kosher food processing and pharmaceutical customers.