Additin® RC 4211

Type

Thixotropic anticorrosion additive for rust preventatives

Application

– rust preventatives, based on oils or solvents
– cutting oils
– greases

Additin RC 4211 is a non-staining, low odor and bariumfree anticorrosion additive giving excellent results on
severe long term storage, in the salt spray cabinet and in Kesternich cabinet (alternating and constant climates).
Solvent based rust preventatives based on Additin RC 4211 are forming homogenous and stable waxy protection
layers; due to its very strong thixotropic properties the typical treat level of Additin RC 4211 on this type of
application is much lower compared to other anticorrosion additives. Mineral oil based rust preventatives based
on Additin RC 4211 are showing high stability protection layers and less draining-off on long term storage.
Additin RC 4211 surpasses the performance of conventional barium type products.

Additin RC 4211 is a soft waxy solid at ambient temperature. However it can be easily liquified if heated at 50 °C .
Due to its strong adsorption on metal surfaces and its hydrophobic character, Additin RC 4211 can not be easily
removed by mild alkaline washing (acc. to Volkswagen test VW 52.02). However, the cleaning operation can be
done successfully with stronger waterbased cleaners or with cleaners based on hydrocarbons.

Additin RC 4211 can also be used as a corrosion inhibitor in lubricating greases.

At higher treatment level, Additin RC 4211 gives nonnewtonian fluids and may have a significant variability in
viscosity during storage. The viscosity can be influenced by shear strain.

Not suitable for circulating systems.

Solubility

Good solubility in mineral oils, synthetic base oils and white spirits. However, it is necessary to verify the solubility
in the base oils used and the compatibility with other additives.

Storage conditions

in a dry place at room temperature approx. 12 months

Handling

Consult material safety data sheet (MSDS) for additional handling information on Additin RC 4211.