Glossary

(Chemical) corrosion protection

Corrosion protection and special chemical corrosion protection are understood as the measures to avoid damage that can occur as a result of corrosion, among other things, on metallic components. To create one corrosion protection we offer our patented anti-corrosion coatings Corrosion protection Jumbo ICorrosion protection Jumbo II and  Corrosion protection Jumbo III

Coatings for chemical corrosion protection are not the same as plastic linings. Because the chemical and thermal resistance of fluoroplastics in their plastic form is by no means identical to a coating made of the same material. The bases for chemical corrosion protection include: Jumbo 1 – ETFE, partially fluorinated fluoroplastic; Jumbo II – PFA/FEP, fully fluorinated fluoroplastic; Jumbo III PFA/FEP, fully fluorinated fluoroplastic.

A general distinction is made between active and passive corrosion protection. If the material is separated from its reaction partners by a surface coating (as with the Rhenotherm Jumbo series), this is passive, chemical corrosion protection. If, for example, metals cover themselves with a protective oxide layer, this is called spontaneous passivation, a kind of natural protection against corrosion. In the case of active chemical corrosion protection, on the other hand, the (electro)chemical corrosion processes are directly intervened. For example, the oxygen content of the water in heating systems can be reduced in order to block or at least weaken chemical processes.

The term corrosion itself can be roughly divided into four subcategories: surface, pit, pitting and crevice corrosion. These each describe a different characteristic of the uniformity and locality of the damage. With the right (chemical) anti-corrosion protection, all of these cases are easy to prevent.

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