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Here you'll find a selection of frequently asked questions and answers for a quick overview.
Cleaning agents for solar panels must reliably remove contaminants without damaging sensitive surfaces. For the applications described, environmental compatibility, biodegradability, material compatibility, and a residue-free cleaning result are also important requirements.
Rust-preventive oil forms a protective barrier against moisture on metal surfaces, thereby reducing the risk of rust and corrosion. This is particularly important for machinery, vehicles, tools, and attachments that are regularly exposed to rain, snow, or high humidity.
The right flux promotes uniform and controlled tinning of the strands and improves wetting with the solder. At the same time, it is essential to ensure that neither flux residue nor flux penetration into the cable or strand insulation compromises the subsequent reliability of the connection.
Water-based fluxes are formulations that use water as a carrier medium instead of alcoholic solvents such as IPA or ethanol. They contain organic, halogen-free, and resin-free activators that specifically remove oxide layers from metallic surfaces. Emil Otto develops such systems with optimized drying properties that enable uniform wetting, stable soldering processes, and residue-free results.
The key advantage lies in reduced dependence on volatile commodity markets while maintaining consistent process quality.
A suitable flux must ensure good soldering properties without interfering with the wave or selective soldering process. At the same time, it must be possible to process it reliably within the defined process parameters. For nickel surfaces, protection against re-oxidation is also required.
Emil Otto's cleaning products are specially developed for cleaning photovoltaic systems. They gently remove typical contaminants such as pollen, dust, and organic residues from the module surface. This allows solar modules to be cleaned efficiently without damaging glass surfaces or coatings.
Prices for isopropanol (IPA) and ethanol are rising due to geopolitical tensions and the resulting disruptions in global oil and gas supply chains. Both substances are directly linked to petrochemical processes. IPA is a byproduct of petroleum refining, while synthetic ethanol is derived from ethylene. In addition, the shift of production to the Asia-Pacific region and the prioritization of domestic markets are further limiting availability. Emil Otto GmbH is responding to this development with water-based fluxes that significantly reduce this dependence.
ZINNIN GREEN I Sn100 is lead-free, zinc-free, and complies with the WEEE/RoHS directives. The paste also features a labeling-free formulation and is not classified as a hazardous material. Flux residues are visible under UV light and can be removed with deionized water if necessary. These properties support controlled and efficient application in piping construction.
VO Anti-Rust Oil is suitable for protecting machinery, vehicles, attachments, and tools used outdoors from corrosion. Typical applications include agriculture, highway maintenance, construction equipment, cable cars, and maritime applications.
Any remaining flux residue must not impair the electrical performance or long-term functionality of the cable connection. Of particular concern are potential corrosion and an excessively low surface electrical resistance (SIR).
