Product benefits

The insulation of pipelines is critical for the efficiency of a solar thermal installation. Uninsulated or poorly insulated pipes release valuable heat into the environment, thereby decreasing the overall efficiency of the system. The less heat is lost on the way from the rooftop collector to the buffer storage tank in the cellar, the more fuel is saved. To prevent energy losses, all of the pipes running between the collector and the storage tank must be insulated.

Kaiflex Solar EPDM retains its flexibility and full functionality in the temperature range between +150 °C (+175 °C) and –50 °C.Thanks to its resistance to high temperatures and good thermal conductivity of λ40 °C ≤0.042 W/(m·K), Kaiflex Solar EPDM is suitable for solar thermal systems, where fluid pipes can reach temperatures over +100 °C.

High UV resistance

Outdoor use places particularly high demands. The insulation material is exposed to wide temperature variations, UV radiation and ozone. Kaiflex Solar EPDM features excellent UV and ozone resistance, and thereby contributes to the efficiency of thermal solar systems.

Easy installation

Kaiflex Solar EPDM is available as endless tubing. Special accessories like Kaiflex EPDM adhesive and EPDM tape make installation easy.

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Product highlights

Piktogram, UV

The outdoor solution

In outdoor applications, insulation is exposed to large temperature fluctuations, UV light , ozone and weathering. Kaiflex reliably withstands these influences.

Piktogram, Teplota, Vysoká

Constant performance at high temperatures

Pipework can be exposed to very high temperatures. Kaiflex maintains its flexible properties and full functionality in a wide temperature range up to + 150 °C.

Pictogram, Thermal Efficiency

Excellent thermal values minimise energy losses

Inadequately insulated technical installations generate increased operational costs. Kaiflex has low thermal conductivity, which results in lower energy losses and increases the efficiency of the entire installation.


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Insulation thickness calculator Kaicalc

Those who pay attention to careful planning, workmanship and quality in a project design, can avoid costly system malfunctions or even failures and can thus keep operating costs stable in the long term - or even reduce them sustainably. Decisive for this is both the choice of the right insulation material and the correct calculation of insulation thickness. Our insulation thickness calculator Kaicalc provides reliable support around the clock.

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