Solaris DTX20 Physical Properties


1.02 - 1.15 g/cm³ depending on inhibitors


7.5 - 10.5 depending on inhibitors

Boiling Point:



a clear, slightly viscous liquid. It is mildly sweet to the taste and has a non-pungent but characteristic aroma.

Available in:

5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.


For a quote or assistance

Tel: (021) 385 0908

Ready-To-Use, High Efficiency, Non-Toxic, Extreme Temperature Rated Heat Transfer Fluid with Antifreeze. Based on Ethylene Glycol blended with patented DeTox™ additive and Reversibly Evaporable Inhibitors to prevent corrosion, scaling and biological fouling.

Solaris DTX20 has been especially formulated for use in Solar Thermal Heating Systems to exploit the advantages Ethylene Glycol has over Propylene Glycol - whilst delivering a non-toxic solution. Specifically;

Antifreeze AntiFreeze

Solaris DTX20 is a Ready-To-Use solution that provides freeze protection down to -20°C.

non toxic Non-Toxic

Although based on Ethylene Glycol, Solaris DTX20 has been tested and classified as Non-Toxic by an EPA certified laboratory. Previously Propylene Glycol was the only non-toxic glycol available. That is no longer the case.

Hydratech in alliance with Evans Cooling Systems, Inc. have developed and patented the DeTox™ additive. DeTox™ prevents Ethylene Glycol from being metabolised (during digestion) into toxic by-products, which cause kidney failure, blindness and death. Tests carried out on Solaris DTX20 confirmed the toxicity was “so low that it was impossible to determine an LD50 value”.

The DeTox™ additive has very little effect on heat transfer or antifreeze performance. In fact similar volumes of Solaris DTX or Ethylene Glycol are required to achieve a specific freeze protection.

Optimum Flow Optimum Flow

Solaris DTX20 has improved heat transfer characteristics. Including lower Dynamic Viscosity and higher Thermal Conductivity. Performance comparison curves are available upon request.

Corrosion control Corrosion Control

Solaris DTX20 has been tested in accordance with BS5117 procedures and found to meet BS6580 and ASTM D1384 corrosion limits.

Solaris DTX20 also contains a high temperature rated polyacrylate, formulated to prevent sludge precipitation and scale formation. Thus promoting long operational life and high thermal efficiency.

Biodegradable Biodegradable

Solaris DTX20 is readily biodegradable (90% over ten days) and will not remain in the environment or bio-accumulate.

Quality Assured Quality Assured

All Hydratech products are manufactured in accordance with certified ISO9001-2008 procedures


As per BSRIA guide BG 29/2012 all pipe-work systems should be clean and free from biological contamination and debris prior to commissioning.

To minimise corrosion air ingress should be minimized. A pressurised system is best.

Solaris DTX is a Ready-To-Use Heat Transfer Fluid that will provide freeze protection down to -20°C. In order to maintain system integrity only top-up with Solaris DTX20.

Health & Safety: Please refer to the associated Safety Data Sheet. Available via Login or upon request.

Shelf Life: 3 years when stored in sealed containers out of direct sunlight.

Available in: 5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.

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