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B-team Corrosion Protection

B-team Energy and Environment

B-team Pro Curatenie

 

rubber linings

Protection against corrosion is realized by rubber lining with a proper material. As the material selection is made according to technical and financial criteria, rubber linings supplied by KCH Group GmbH are being used more and more often. The selection parameters are temperature, size, the corrosive properties of the medium and, in certain cases, particular properties such as abrasiveness. The decisive consideration is always the need to keep the cost of operating a plant low.

Rubber linings are highly cost-efficient. In combination with an appropriate base material – usually steel – they provide very reliable surface protection. They are a safe, trouble-free and reliable means of combating corrosion, also abrasion in special cases and, in the case of anti-adhesive coatings, product deposits.

Rubber linings offers many advantages:

  • Corrosion resistance because of material quality– the material is virtually insensitive to variations in concentration.
  • High resistance to mechanical stress afforded by the steel base material – pressure vessel designs in accordance with all recognized standards are possible.
  • Chemical resistance to acids, basis, alkalis and salts
  • Excellent resistance to diffusion in corrosion environments
  • Long material life
  • Great elasticity

We can apply soft rubber lining or hard rubber/ebonite linings on site or in workshops, according to our customers demands. Our main concern is obtaining best results in shortest time possible.

Rubber linings types:

  • Natural rubber (NR) and polyisoprene rubber (IR)
    Are used for the production of not only hard rubber but also soft rubber. Like hard rubber, soft rubber is notable for its good processing properties but its chemical stability is lower. Soft rubber linings are used mainly for applications likely to involve abrasive wear but no major chemical stresses.
  • Chlorobutyl rubber (CIIR), bromobutyl rubber (BIIR), isobutyleneisoprene rubber (IIR) (known commercially as butyl rubber)
    Can only be vulcanized into soft rubber. However, the vulcanized material has almost the same chemical stability as natural rubber-based hard rubber. Another special feature is the material's high resistance to steam diffusion and diffusion by sulphur dioxide, hydrofluoric acid, etc. Isobutylene-isoprene rubber is also notable for its good resistance to weathering and wear.
  • Polychloroprene rubber (CR)
    Can only be vulcanized into soft rubber, which is likewise characterized by good chemical stability and resistance to aging, weathering and wear. Its resistance to attack by halogenating and oxidizing media is not as high as that of butyl rubbers. Polychloroprene rubber, however, displays higher resistance to conditions involving exposure to oils. Its relatively high chlorine content of more than 25 % can also provide it with selfextinguishing properties but its diffusion resistance is markedly lower than that of butyl rubbers.
  • Chlorosulfonated polyethylene (CSM)
    Can likewise be used only for the production of soft rubber grades. They are notable in particular for their high resistance to oxidative stresses (e.g. chlorine bleach liquor).
  • For special applications, soft rubber linings are also produced from nitrile butadiene rubber (NBR)
    NBR linings are those that display the most wide-ranging resistance to organic chemicals.
  • Styrene-butadiene rubber (SBR).

On-site rubber lining
Workshop rubber lining
Applications

Rubber Linings

Rubber Lining on Steel Substrate

Rubber Lining on Concrete Substrate

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