Quality products since 1901

Fluxes, solders, cleaning agents and chemical products for reliable production

We offer reliable consumables for assembly production. As an owner-managed company, we are dedicated to the development and manufacture of high-quality fluxes and other consumables such as solders, soldering aids, cleaning media and ESD products.

Our origins lie in metal chemistry, from which our expertise and many years of experience in the manufacture of chemical products for the metalworking industry stem. This forms the basis for our extensive product range, which serves a wide variety of applications with the highest quality.

Solar fluxes, tubular solders, and cleaning products for the solar industry—Made in Germany. We offer a broad product portfolio for soldering solar modules, tabber and stringer materials, and joining cells. Our solar fluxes are no-clean products formulated without halogens.

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+49 (0) 6123 - 70 46-0

Company

Quality products
since 1901

Our Company Emil Otto was founded in 1901 and has maintained a long tradition of producing high-quality fluxes for use in the soldering industry ever since. We specialize in the development and production of high-quality fluxes that are widely used in the electronics, automotive, and mechanical engineering industries.

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Catalog

Product highlights

Our team has years of experience and extensive specialist knowledge, which flows into the development of our products. So you can be sure that you will always receive the best solutions for your requirements.

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EO-M-026

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EO-G-011

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SOLAR FLUX-EO-S-022

Burnishing and Blackening of Metal Surfaces

Function | Advantages | Applications

Overview of black-colored tools, including a product image of the NIGRIT solution from Emil Otto
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We Support Nachbarschaftshilfe Oberer Rheingau – Together for a Strong Region

Als Familienunternehmen sind wir fest im Rheingau verwurzelt. Mit unserer Unterstützung der Nachbarschaftshilfe Oberer Rheingau [...]
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Starting in 2027, we will largely transition our production to renewable energy

Starting in January 2027, we will meet all of our electricity needs with renewable energy. The supply is provided by [...]
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January 28, 2027

Vienna, Austria

Evertiq Expo Vienna 2027

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April 22, 2027

Zurich, Switzerland

Evertiq Expo Zurich 2027

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June 8–10, 2027

Munich, Germany

Intersolar Europe 2027