Immersion Zinc Phosphate Coating - Freiborne Industries, Inc Immersion Zinc Phosphate Coating - Freiborne Industries, Inc

Product Type: Formcoat 1

FORMCOAT 1 is an immersion zinc phosphate coating process. FORMCOAT 1 provides proven time testedperformance. FORMCOAT 1 is used primarily to facilitate cold forming when used in conjunction with aFORMLUBE lubricant, or wire drawing when used in conjunction with a FORMATE series drawing compound.


Additional Information

Temp Range



Carbon Steel


Drawing, Extrusion

Product Type

Conversion Coatings

Product Line




  • The process tank should be constructed from stainless steel or an acid and oxidizer resistantcomposite material that will withstand the temperature ranges required. Use of mild steel will resultin shortened equipment life due to chemical attack.
  • Heat transfer surfaces should be constructed of 316 stainless steel, or an acid and oxidizerresistant high temperature composite, if steam or heat transfer fluid type heat exchangers areused.
  • Piping and pumps may be constructed of stainless steel, mild steel, or an appropriate compositematerial. Use of mild steel will result in shortened equipment life.

Fill the tank to the three quarter level with water and add 81 gallons (1036 LBS) of FORMCOAT 1A chemicalfor each 1,000 gallons of working solution required. With water bring the tank to the operational level andheat to the required temperature, typically 180oF. Once the optimum temperature is determined, it should bemaintained within ±5oF. A processing bath built up according to these recommendations will result in 25points of Total Acid, or what is referred to as a 25 point bath. Cleaned steel is placed in this solution for 3 to10 minutes to produce a uniform coating.

To calculate the amount of FORMCOAT 1A necessary to build up a bath use the following equation:

(Working Volume) x (Total Acid Points Desired) x (0.003247) = Volume of FORMCOAT 1A Required

Example: To build up a 5000 gallon working volume bath at 30 points of total acid

(5000 gal) x (30 points) x (0.003247) = 487 gallons of FORMCOAT 1A required

Just before any work is processed, add 10 oz. (220 mls.) of Freidox 2 or 20 oz. (500 mls. of a20% solution of Freidox 1) per 1,000 gallons and mix.

Ordering Information

To place an order, please contact our knowledgeable and professional customer service team:

If you are unable to find what you need or require a custom formula, please call and speak with one of our knowledgeable Formula Engineers. They can walk you through the ordering process quickly and professionally.