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Anti-corrosion / anti-abrasion protection of expander components

Surface preparation

Degreasing, pressure washing, abrasive blasting to cleanliness grade Sa 2½, roughness profile ISO comparator – Medium G.

Application of masses

Applied Products:

Applied coating systems:
NS1 = 1 500 μm DFT

Applied substrate:
Inner parts of expander components; Carbon steel; 20 m²


  • decontamination of oils and grease
  • surface preparation according to ISO 8501-1 to purity grade Sa 2½
  • complete inspection of surface preparation before application of coatings
  • application of POLYGLASS VEF WR (750 μm DFT)
  • application of the final layer POLYGLASS VEF WR (750 μm DFT)
  • carrying out the relevant quality tests according to the PKZ

CORROTECH ENGINEERING s.r.o. provides highly professional services in the field of surface preparation and application of special coating systems for the most demanding stress environments and various engineering equipment. Filled with special glass microflakes and abrasion-resistant fillers, CORROCOAT POLYGLASS VEF WR vinyl ester coating is the ideal choice for corrosion and abrasion protection of the internal parts of expander components, protecting the steel substrate for the long term
and thus prolong the life of the steel structure.

CORROCOAT has been successfully fighting corrosion for more than 45 years. It uses innovative mechanical engineering combined with anti-corrosion technology to provide long-term protection for both new and damaged equipment. It uses special composite and structural coatings in conjunction with technical processes to individually address corrosion problems. With a focus on quality, refurbishment procedures are a proven, cost-effective weapon to win the battle against corrosion in the long term.