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ST 50

ST 50
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ST 50

ST 50




ST 50 is used for removing rust in steel surface, return the original of steel surface, an also works to prevent rust coming back and protect the metal surface. 



  • Clean up steel utensils, metallic tool such as: concrete from casting, steel formwork.
  • Remove rust in steel surface, yellow rusty metallic, reinforced construction.
  • Prevent rust coming back and new steel.


Technical data

Property  Results Standard 
Form Liquid  
Colour No colour   
Specific gravity (g/cm3) 1.20 ± 0.05  TCVN 3731 : 1982 
pH  ≤ 3  TCVN 6492 : 1999
Solid content  (%) 25 - 35  TCVN 4560 :1988 
Chloride ion content  ≤ 1  TCVN 6194 : 1996 
Rust removing ability Type C  TCXDVN 334:2005 



Clean surface prior to application to ensure grease, water anh dust left before using the ST50 
Use a brush (paintbrush) or sprays (plastic) to scan (spary) solution on the surface to be cleaned or preserved. 

Dip the iterm in need of cleaning in the soaking solution for 15 – 30 minutes depending on level of stainless of steel, metal surfaces. 



Construct in dry conditions, avoid direct contact with rain water when the product is not completely dry.

When using the product should use the instruments of labor protection: Wear goggles, gloves, masks, wear protective clothing to ensure safety. 


Packing & Coverage 

  • Packing Size : 5 KG  & 20 KG pail
  • Storage condition : Dry, cool, shaded place.
  • Shelf life : 24 months 
  • Coverage : 

- Type A rusted steel : 8 – 10 m2 / KG 

- Type B rusted steel : 05 – 07 m2 / KG 


Reference No. ST 50/14102021

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  • Model: ST 50