Solar fluxes help ensure stable and durable solder joints in cell bonding. Optimized flux technology can have a positive impact on process reliability, electrical reliability, and long-term module performance.
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Solar fluxes help ensure stable and durable solder joints in cell bonding. Optimized flux technology can have a positive impact on process reliability, electrical reliability, and long-term module performance.
The switch to water-based fluxes is a strategic decision aimed at reducing risks in the supply chain and stabilizing production costs. By eliminating alcohol-based solvents such as IPA and ethanol, companies can insulate themselves from highly volatile raw material markets. Emil Otto offers a technologically advanced portfolio for this purpose that combines high process reliability, reproducible soldering quality, and economic advantages.
Yes, heavy or uneven soiling can cause what are known as “hotspots,” where certain areas of the solar module heat up more than others. This can damage the solar cells over time. Regular cleaning with suitable photovoltaic cleaners, such as products from Emil Otto, can reduce this risk.
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.
In addition to protecting against rust and moisture, VO anti-rust oil can lubricate moving parts and protect them from wear. This makes it particularly suitable for providing seasonal protection for machinery and components during extended periods of damp weather.
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.
Cleaning solar panels is important because contaminants such as pollen, dust, or bird droppings can reduce the light transmittance of the panel surface. This reduces the power output of the photovoltaic system. Specialized cleaners are often used for gentle cleaning, such as photovoltaic cleaning products from Emil Otto.
Fast Dry flux dries significantly faster than conventional fluxes. This allows the preheating temperature in the process to be reduced. This minimizes the thermal stress on sensitive TOPCon and heterojunction solar cells and facilitates gentle cell contacting.
EO-S-009 FD is a halide-free, no-clean flux for soldering solar modules, tabber and stringer materials, and for joining solar cells. It leaves no sticky residue, has a solids content of 1.8 %, and is non-corrosive.
A suitable flux must selectively remove the titanium oxide layer, activate surfaces that are difficult to wet, and at the same time minimize corrosive residues. In addition, high process stability, low-residue processing, and suitability for automated manufacturing processes are crucial. Ideally, it should be zinc- and halide-free, non-flammable, and VOC-free.