Topic Areas

Our FAQs are organized into different topics. Simply select the appropriate category to quickly find the answers that are relevant to you.

Questions & Answers

Here you'll find a selection of frequently asked questions and answers for a quick overview.

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Depending on the cleaning agent used, substances such as lime and lime compounds, other salt-based contaminants, deposits, lichens, mosses, and algae can be removed. Contamination from soot, exhaust fumes, dust, or kerosene can also be a concern, particularly at solar parks located near transportation hubs.

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Cleaning agents for agri-photovoltaic systems must reliably remove contaminants while taking into account the specific use of agricultural land. Emil Otto offers water-based and highly biodegradable cleaning agents designed specifically for solar farms.

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Solar panels should be cleaned especially after the pollen season in the spring. During this time, large amounts of pollen often accumulate on photovoltaic panels. Regular visual inspections and cleaning with suitable cleaning agents, such as photovoltaic cleaners from Emil Otto, can help maintain the system’s performance.

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The flux helps remove oxides from the solder pads, thereby contributing to a clean, oxide-free surface and better wetting. Good wetting, in turn, can help reduce the formation of pores within the solder joint.

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Soldering nitinol is technically challenging because an extremely stable layer of titanium oxide forms immediately upon contact with air. This layer prevents the solder from reliably wetting the surface. Conventional fluxes are usually unable to effectively remove this oxide layer or leave behind critical residues, which significantly limits process reliability.

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Key criteria include wetting, solids content, activators, temperature stability, residue behavior, suitability for no-clean applications, material compatibility, and process reliability. The selection should always be tailored to the specific soldering process, equipment, temperature profile, and quality requirements.

Learn more: Selection Criteria for Solar Fluxes in Photovoltaic Manufacturing

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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.

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For the repair of printed circuit boards, Emil Otto offers, among other products, the no-clean flux pastes FP-BIO-001 EO B-Power and FP-BIO-002 EO B-Power. Both products are bio-based, feature high activity as well as good wetting and penetration properties, and were developed for high-quality electronics manufacturing and repair applications.

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Before use, stir the paste until the green color of the use indicator changes to a metallic silver-gray and a uniform consistency is achieved. It can then be applied to the parts to be joined using a brush or another suitable tool. Due to the high activity of the flux it contains, the paste spreads well over the surfaces and does not drip.

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Nitinol is used in numerous military and aerospace applications, particularly where conventional materials reach their limits. These include adaptive structures in UAVs and missiles, thermally controlled actuators and valves, vibration and shock absorption systems, miniaturized microactuators, and reliable separation mechanisms in satellite technology. These applications benefit directly from unique properties such as shape memory and superelasticity.