Product Categories / Metal Treatment / Additives

Duradd 16

Product description

Duradd 16 is a powder blend of sodium nitrite and special additives used in zinc phosphating bath as an accelerator.


  • Duradd 16 is zinc phosphating accelerator.
  • Duradd 16 is used to accelerate the zinc phosphating process and gives a fine, smooth crystal structure.


  • Duradd 16 is added to zinc phosphate main tank in spray and immersion processes.

Physical & chemical Properties

  • Appearance     Powder Color    White to Yellowish pH (1%) at    25 o C 7.6 ± 0.3 Solubility in water     (under desired quantity) Soluble


  • See the original zinc phosphate product TSDS Duraphos products.

Process Sequences


Operating Parameters

Initial Preparation