The proof

What Fraunhofer measured

Almost every claim in synthetic ice is unmeasured. Europe's largest applied-research organization measured the five leading synthetic ice surfaces on the same equipment, under identical conditions. This is what they did, and what they found.

Review the independent Fraunhofer IWM test of five synthetic ice surfaces, including its measurement rig, test conditions, friction, indentation, and abrasion results, and the limits of those findings.

Glice is a Swiss-engineered synthetic ice rink system that delivers a real skating experience on regular ice skates, with no water and no electricity. Its solid polymer panels showed 52% less friction than the next-best synthetic ice in standardized Fraunhofer Institute testing, and are now installed in more than 3,000 rinks across 100+ countries.

Reviewed by Viktor Meier, Co-Founder & CEO, Glice AG · Last reviewed: August 2026

Why Glice commissioned the testing

Glice did not order this test to produce a marketing line. It commissioned it as a baseline for its own research and development: to know, precisely and independently, how the surface performed against the rest of the market and where it could be improved. The results were strong enough to publish, but the purpose was engineering, not advertising.

Who did the measuring

The work was done by Fraunhofer IWM, the Institute for Mechanics of Materials, one of the institutes of the Fraunhofer-Gesellschaft, which is Europe's largest organization for applied research. It was led by Prof. Dr. Matthias Scherge, who heads the institute's work on tribology, the science of friction and wear. Glice commissioned the study but did not run it. The measurement is Fraunhofer's.

How they tested it

Standard laboratory equipment is not built to measure ice gliding, so Fraunhofer built a bespoke ice gliding simulator for the project. They selected the top five synthetic ice surfaces, bought the newest version of each directly, and measured all five on the same rig under identical conditions, in September 2025. Three properties were measured: surface friction, indentation, and abrasion.

What they found

On all three properties, Glice measured best of the five surfaces tested. Against the next-best surface, Glice recorded 52% less friction, 45% less indentation and 6% less abrasion. Those figures were measured at low sliding speed, under laboratory conditions, on clean, prepared samples, and they are relative to the next-best surface on the same equipment.

Measured advantage over the next-best tested surface
Friction
52% less
Indentation
45% less
Abrasion
6% less
Source: Fraunhofer IWM, the Institute for Mechanics of Materials, part of the Fraunhofer-Gesellschaft; measurement led by Prof. Dr. Matthias Scherge. In September 2025, the newest versions of five leading synthetic ice surfaces, bought directly, were tested on a bespoke ice gliding simulator built for the project, on the same rig under identical conditions. Figures show Glice’s advantage over the next-best tested surface at low sliding speed on clean, prepared laboratory samples.

How to read the numbers

A friction figure only means something with its conditions and a reference, and this study has both: identical conditions, and a direct comparison against the next-best surface on the same rig. That is what makes the percentages meaningful, and it is exactly what most competitor claims lack. The numbers describe these specific surfaces under these specific conditions, not a universal property.

Glice and real ice

Fraunhofer also compared Glice against frozen ice. At low sliding speed, in the laboratory, Glice's friction came out slightly lower than frozen ice. This holds under those two conditions, low speed and clean laboratory samples, and not beyond them. At the speeds a hockey player actually reaches, around 8 m/s, refrigerated ice is expected to have the lower friction. That is an expectation from the physics, not a measurement, because a reciprocating laboratory rig cannot recreate a blade meeting fresh cold surface at speed.

The limits of the test

Three limits travel with the results. The high-speed case cannot be simulated on the rig, so the low-speed findings should not be stretched to game speed. Blade wear was not part of the study. And abrasion was measured to the DIN ISO 4649 standard, which is one defined method, not every possible one. The findings are precise about what they cover.

In short

Fraunhofer IWM, Europe's largest organization for applied research, measured the five leading synthetic ice surfaces on one rig under identical conditions. Glice measured best on all three properties, with 52% less friction, 45% less indentation and 6% less abrasion than the next-best surface, at low sliding speed on clean laboratory samples. It is the only independent, published comparison of synthetic ice surfaces in the category. Glice engineered the material; Fraunhofer measured it.

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Frequently asked questions

Fraunhofer IWM, the Institute for Mechanics of Materials in Freiburg, Germany, performed the comparative work. Prof. Dr. Matthias Scherge led the measurement program. Glice commissioned the study for research and development, but Fraunhofer built the test method, ran the measurements and reported the results independently.

Under identical low-speed laboratory conditions, Glice recorded 52% less friction and 45% less indentation than the next-best of five tested synthetic ice surfaces. Fraunhofer also measured 6% less abrasion. These percentages describe the tested samples and conditions; they must not be converted into unrelated glide, effort or sharpening claims.

Yes. Fraunhofer IWM measured five leading surfaces on the same purpose-built ice-gliding simulator, using clean prepared samples and identical conditions. The work covered friction, indentation and DIN ISO 4649 abrasion. It did not measure blade wear or reproduce competitive skating speed, so those limits remain part of the published interpretation.

Glice wanted comparable measurements to guide research and development and to test current material against other leading synthetic ice surfaces under the same conditions.
Fraunhofer compared five leading synthetic ice surfaces, including Glice, using prepared samples and the same measurement setup for each tested property.
Fraunhofer used a purpose-built ice-gliding simulator to move a skate blade across clean prepared samples under controlled low-speed conditions and measure the relevant forces and indentation.
The study measured the resistance acting on the blade as it moved across each sample. Glice recorded 52% less friction than the next-best tested synthetic surface under those conditions.
The study measured how far the blade sank into each material. Glice recorded 45% less indentation than the next-best tested synthetic surface under the same conditions.
Fraunhofer used the DIN ISO 4649 method to compare material abrasion. Glice recorded 6% less abrasion than the next-best tested synthetic surface in that test.
The measurements apply to the tested samples, method and low-speed laboratory conditions. The study did not reproduce competitive skating speed or directly measure blade-wear intervals, full-rink joints or long-term operations.
No. The study found comparable low-speed glide behaviour under the defined clean laboratory conditions. Freshly resurfaced refrigerated ice is still expected to retain an advantage at competitive speed.
Use them as a controlled comparison of three material properties, keep the stated limits attached and combine them with sample skating, joint design, installation requirements and operator evidence for the actual project.

Key facts

  • Fraunhofer IWM measured Glice friction matching freshly resurfaced real ice at lower speed
  • 52% less friction and 45% less blade indentation than the next-best synthetic ice competitor
  • Operating in 100+ countries with 3,000+ installations
  • Swiss-engineered panels manufactured in Germany under exclusivity

Last updated: June 2026