Corrosion inhibitors
METAL PROTECTION THROUGH CORROSION INHIBITION
The REWOCOROS® brand comprises a broad range of multifunctional corrosion inhibitors for the formulation of metalworking fluids and non-flammable hydraulic fluids.
These products are being used in soluble oils, semi and full synthetic fluids as well as cleaners. They do not only provide excellent corrosion inhibition but additional benefits such as co-emulsifying or wetting properties or lubricity enhancement. We also offer products that are suitable for the processing of aluminum and other non-ferrous metals.
Our portfolio includes
Fatty acid amides
Boric acid blends
Carboxylic acid derivatives
Alkanol amides
Phosphoric acid esters
In addition to the conventional test methods like the filter chip test or the bimetallic corrosion coupon test Evonik uses the impedance spectroscopy in order to evaluate customer needs and develop new solutions.
recommendations - top sellers and frequently employed products
REWOCOROS® AL 200 - Excellent corrosion inhibiting performance even on sensitive Al alloys. Outperforms a number of competitive CI and shows, in addition EP properties
REWOCOROS® AC 261 - Ready-to-use CI especially for non-ferrous but also for ferrous metals with excellent co-emulsifying properties
REWOCOROS® O 3 - Single base component that offers formulators more flexibility to develop customized MWF formulations
Product listing in alphabetical order
- REWOCOROS® AC 100 US
For semi-synthetic MWF in combination with non-ionic emulsifiers and boric acid-amine blends.
- REWOCOROS® AC 101
For semi-synthetic MWF in combination with non-ionic emulsifiers and boric acid-amine blends.
- REWOCOROS® AC 261
Especially applicable as corrosion inhibitor for non-ferrous metals such as aluminum, but can also be used for ferrous metals.
- REWOCOROS® AC 28*
*Not available in the EU - For semi-synthetic MWF in combination with non-ionic emulsifiers and boric acid-amine blends.
- REWOCOROS® AL 200
Multifunctional corrosion inhibitor for water miscible metalworking fluids. Suitable for aluminum alloys as well as for ferrous metals depending on what kind of neutralizing agent is used. Excellent aluminum corrosion inhibition even in low alkaline systems. Provides excellent EP/AW properties, both in water miscible and non-water miscible systems.
- REWOCOROS® O 3
Low foaming co-emulsifier for emulsifiable metal working fluids (MWF) and as corrosion inhibitor if combined with fatty acids/carboxylic acids .
- REWOCOROS® RA BE
Semi- and full synthetic metal working fluids excellent corrosion protection properties and improved buffer capacity.
- REWOMID® DC 212
Corrosion inhibitor and cleaning component in vibratory grinding compounds and aqueous cleaning formulations.
- TOMAMINE® AO-728
Description
- TOMAMINE® AO14-2*
*not available in the EU - Grease emulsification and soil suspension.
- TOMAMINE® AO455*
*not available in the EU - A unique, low foaming, high detergency amine oxide.
- TOMAMINE® DA17*
*not available in the EU - Additives or building blocks for many other surfactants with broad applications.
- TOMAMINE® Inhibitor 60 S
Description
- TOMAMINE® PA1214*
*not available in the EU - Additives or building blocks for many other surfactants with broad applications.
- TOMAMINE® PA12EH*
*not available in the EU - Additives or building blocks for many other surfactants with broad applications.
- TOMAMINE® PA14*
*not available in the EU - Gelling and wetting of various clays, fillers, and fibers in organic coatings and sealants.
- TOMAMINE® PA14Acetate*
*not available in the EU - Ether amines.
- TOMAMINE® PA17*
*not available in the EU - Additives or building blocks for many other surfactants with broad applications.
- TOMAMINE® PA1816*
*not available in the EU - Additives or building blocks for many other surfactants with broad applications.
- TOMAMINE® Q-14-2 PG
Corrosion inhibitor and a detergent booster
- TOMAMINE® Q-C-15
Corrosion inhibitor and a detergent booster
- TOMAMINE® Q14-2*
*not available in the EU - Corrosion inhibitor and a detergent booster.
- TOMAMINE® Q17-2*
*not available in the EU - Corrosion inhibitor and a detergent booster.
- TOMAMINE® QDTHG*
*not available in the EU - Corrosion inhibitor and a detergent booster.
- VARINE® O*
*not available in the EU - Corrosion inhibitor for greases, rust preventives and industrial lubricants.
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Corrosion inhibitors marketed by Evonik
under the trade name REWOCOROS® exhibit excellent corrosion inhibition properties for steel, iron, aluminum, and other metals. Typically REWOCOROS® products are
offered as compounds based on fatty acid amides, alkanolamides, boric acid or imidazolines.

Overview about our product portfolio of antifoams, emulsifiers, wetting agents and corrosion inhibitors for metalworking and industrial fluids.