CLASSICOAT removes thin films of oil; and rust from steel components; it comes of great help when you have to remove rust from -

  • Cold rolled sheet metal surfaces
  • Machined cast iron surfaces
  • Steel reinforcement rods used in civil engineering construction
  • Machinery which get rusted in use; etc. etc.
      Machined surface of cast iron component was rusted;"CLASSICOAT" was applied by brush and allowed to remain for about 5 minutes. Then the residual chemical was wiped off. The surface was free from rust and had a phosphate coating, which protected the surface from corrosion for about 3 months in indoor storage on shop floor.
Always keep CLASSICOAT within arm's reach.
Very useful chemical in any engineering factory. 

 

For treatment of steel components that get rusted in-between processes , 

CLASSICOAT may be applied by brushing method or by dip process, depending upon the dimension, contour and number of work pieces to be treated.

If you use it by brushing method, allow the chemical to remain on the surface for some time: say 15 to 30 minutes.

If you use it by dip process, keep the components immersed in CLASSICOAT long enough for the rust to be removed.

Rust will be dissolved in the chemical and a complex phosphate coating will be formed, integral with the surface. In either case, do not rinse the surface with water; the chemical will 'spend itself out' by reacting with the base metal.

The treated surface may be left as it is for about a week or so under controlled storage conditions depending upon the corrosive nature of the environment. Keep the components away from water splashes etc. Ultimately if you wish to paint the treated surface, wipe the surface free of residual chemical and dust, using a clean white cloth, and then, when the surface is dry enough, paint.

CLASSICOAT for treating rusted steel re-inforcement rods.

 CLASSICOAT is preferably used by dip method. When immersing the rods into CLASSICOAT chemical, do not tie them in bundles. Keep the rods dipped in CLASSICOAT until the rust is removed. The duration of dip may be anywhere between 30 minutes for about an hour, depending upon the degrees of corrosion. When you find that rust has come off, remove the steel rods from the CLASSICOAT chemical, and keep them in such a position that excess chemical will drain off.

The residual chemical will spend itself out by reacting with the metal and forming a complex phosphate coating.

The treated rods may be stored under controlled storage conditions for about week or more, depending upon the nature of the environment. If it is desired to paint the treated rod, wipe the surface free of the superficial impurities; make sure the surface does not feel 'sticky' and then paint.

 

Email: guardianchemicals@vsnl.com

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