Daracryl DC4



DARACRYL DC4 is a specially modified, water-based, acrylic resin, used as a corrosion inhibitor on new clean iron and galvanised surfaces. DARACRYL DC4 is easy to apply with good film build and self levelling properties. It is quick drying with excellent durability. DARACRYL DC4 is available in 5L and 25L containers.

Physical Properties

Colour: Oxide Red.
Application: Brush, roller or spray.
Coverage: 6m2 /L
Total Solids +/- 60%
Specific Gravity: +/- 1.2
Viscosity: 100 Krebbs Units at 25ºC
Drying Time: Minimum 30 minutes at 25ºC at 65% R.H.
2-3 hours before resistant to rain.
Full cure 12-20 hours at 25ºC at 65% R.H.
Cleaning: Water when wet. Ethyl acetate when dry. 
Flammability: Non Flamable

Surface preparation

Steel and galvanised steel surfaces must be free of loose paint, grease, grime, oil and rust. Any remaining rust should be treated with DARACHEM  ACID DEGREASER and rinsed off with clean water.
Technical assistance and applicator training are freely available to all approved users.


DARACRYL DC4 may be applied by brush, roller or Spray. For spraying applications DARACRYL DC4 may be thinned up to 10%, using water.
Apply one coat of DARACRYL DC4 at a rate of 6m2 /L
Allow 12 hours drying time before over-coating.
Note drying times are based on a temperature of 250 c min. and a R.H. of 60% max.
Technical assistance and applicator training are freely available to all approved users.

Daracryl DC4



The product is a blend of ingredients, each having specific properties.

  1. Solvent for dissolving non water soluble substances.
  2. Surfactants to Sapponify water soluble greases and oils.
  3. Phosphoric acid to convert rust. The process here is that the phosphoric acid converts iorn oxicide into iron phosphate, liberating oxygen. The acid also etches the metal providing a suitable key for the paint.


The product may be used as is, but if so desired, the strenghth may be reduced by adding up to 15% water.
Using a soft broom, the area to be treated must be scrubbed down and the Degreaser left standing on the surface for approximately twenty minutes, then immediately hosed down making certain that there is no residual product on the surface as this will adversely affect the paint.
Where rusted areas have been treated, it is advisable to apply a solvent based acrylic primer before painting. Ensure that the primer is completely dry before painting, which should be done before further exposure to moisture.
The product is supplied in 5Lt. and 25Lt. drums and should be used within two months of the date indicated on the container. Thorough stirring is required before use.


Since the product contains acid, care should be taken not to expose the product to the skin. However in the event of accidental exposure, immediately wash the affected area with clean, cold water. Should sodium bicarbonate be available, a weak solution should be made with water and the exposed area be washed down. Seek immediate medical attention,.
Technical assistance and applicator training are freely available to all approved users.

Acid degreaser