Solar absorber coatings and surfaces
We manufacture a wide range of highly advanced absorption coatings, which are available on a choice of metal substrates. These offer unique combinations of thermal or solar energy absorption, with extremely low thermal emissivity.
Selective absorber coatings for aluminium or copper strips
eta Plus®
- Selective solar absorption coating for absorbers in flat plate collectors, in tube collectors and in air and large-scale facade collectors
- Available on copper and aluminium
- High solar absorption upto 96%
- Suitable for laser and/or ultrasonic welding
- PVD vacuum coated
eta plus® is our semi-finished product for solar thermal systems and is used in absorbers for flat-plate collectors with full-surface or strip absorbers, in tube collectors as well as in air and large-scale façade collectors. In addition, it facilitates the production of high-performance collectors for solar cooling and the generation of process heat.
eta plus® achieves a very high solar absorption of 96% – combined with a very low thermal emissivity of just 4%. Based upon an aluminium or copper strip, the innovative absorber layer system is applied using a continuous PVD method in a worldwide technologically unique air-vacuum-air process.
mirotherm®
- Diffuse and direct light solar absorption coating
- Proven quality with over 20 years experience
- Up to 96% solar absorption
- Reverse side treatment optimised for laser welding
- PVD vacuum coated
mirosol® TS
- High corrosion resistance solar absorption coating
- Suitable for laser and/or ultrasonic welding
- Available on aluminium
- Hydrophobic lacquer is applied using coil coating method
- Not sensitive to fingerprints
mirosol® TS is the ideal material for solar thermal systems installed in regions with high solar radiation. During the manufacture of mirosol® TS, a selective, hydrophobic lacquer is applied to aluminium in a specially developed process.
This means that for the first time, in addition to PVD coatings, lacquers using the coil coating method are now also available for solar thermal collectors.
mirosol® TS is unique thanks to its high resistance to heavy environmental pollution, salty air, moisture, condensation, oil and dirt as well as a low stagnation temperature.
mirotherm® Control
- Solar absorption coating with integrated overheating protection
- Up to 97% solar absorption
- Up to 40oC lower stagnation temperature compared to standard systems
- Smart reaction to temperature influences
- Reverse side treatment optimised for laser welding
- PVD vacuum coated
Developed on the basis of our best-selling and established coating mirotherm®, mirotherm® Control offers all the advantages of the proven system: solar absorption up to 96%, highest product quality, resistance to external influences such as moisture and integrated protection against overheating.
Solar infographic
With Government policies driving investment in all kinds of renewables, the efficacy of solar energy generation is rising to the top of many agendas, and is something of vital importance to profitability.
View our infographic which looks at how solar absorption and reflection can help the UK drive change in commercial and consumer energy markets.
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