A UK fabricator of vessels and tanks for multiple industries required additional chemical resistance for two storage tanks due to enter service in the chemicals processing industry. The internal surfaces of the tanks would be subject to constant immersion in sulphuric acid.
Following arrival of the tanks, to our workshop, all internal surfaces were abrasive blasted to achieve the required cleanliness levels and surface profile. This was followed by a blow down, sweep and vacuum to completely remove the dust. The internal angles of the floor/wall were then radiused to ensure full continuity of the coating.
The floor/wall interface of the tanks were laminated using multiaxial glass fabric thoroughly wetted with epoxy laminating resin and rollered into place to remove any trapped air, aid adhesion and provide increased structural strength.
Plasmet AR3, a two pack solvent free polyamine cured epoxy, resistant to strong concentrations of sulphuric and other acids, was spray applied to the required DFT.
AR3 is primarily produced for protection against strong concentrations of sulphuric acid. The product can also be used for other acids and in some strong alkali service duties. Applications include bund areas, tanks, pipe work, floors, decking, structural steel and more.
