Development and production of fluxes, solder alloys, cleaning media and chemical products for electronics, metal and solar.

Emil Otto Flux- und Oberflächentechnik GmbH
Eltville am RheinNew on Amplifa
About Emil Otto
Emil Otto Flux- und Oberflächentechnik GmbH was founded in 1901 and is an owner-managed company with a long tradition in the production of fluxes for the soldering industry. Its origins lie in metal chemistry, from which the know-how for manufacturing chemical products for the metalworking industry is derived. The product range includes fluxes, solder alloys, soldering aids, cleaning media and ESD products for electronics assembly, as well as chemical products such as browning and blackening agents for metal surfaces. For the solar industry, solar fluxes, tube solders and cleaning media are offered, including halogen-free no-clean fluxes for soldering solar modules as well as alcohol-based fast-dry fluxes for TOPCon and heterojunction solar cells. Customers come from the electronics, automotive, mechanical engineering, metal processing and solar industries. From January 2027, the company will largely switch its production to renewable energy.
- Site
- Eltville am Rhein
- Processes
- Development and production of fluxes, Solder alloys, Soldering aids, Cleaning media, ESD products, chemical products for metal processing (e.g. browning & blackening), Consulting
- Materials
- Fluxes, Solder alloys and tube solders, Cleaning media, ESD products, Browning & Blackening
- Founded
- 1901
- Industries
- Electronics, Automotive, Mechanical engineering, Metal processing, Solar
- 01
Development
- 02
Chemical production
- 03
Filling/Bottling
- 04
Consulting/Sales
Materials & Processes
Fluxes
No-clean, halogen-free and alcohol-based fast-dry fluxes for electronics, reflow, selective soldering and solar modules.
Solder alloys and tube solders
Solder alloys and tube solders, among other things for tabber and stringer processes in solar module manufacturing.
Cleaning media
Cleaning media for electronics assembly cleaning and applications in the solar industry.
ESD products
Products for ESD-compliant handling of electronic assemblies.
Browning & Blackening
Chemical products for browning and blackening of metal surfaces.
Sites
Eltville am Rhein
DEHeadquarters and production
- Materials
- Fluxes, solder alloys, cleaning media, chemicals
Industries
Additional services
History
- 1901
Founding of Emil Otto; origins in metal chemistry and a long tradition in the production of fluxes for the soldering industry.
- 2027
Switch of production largely to renewable energy from January 2027.