Phosphate coatings are used on steel parts for corrosion resistance, lubricity, or as a foundation for subsequent coatings or painting. The main types of phosphate coatings are manganese, iron, and zinc. We currently offer zinc phosphate coatings, which are used for corrosion resistance (phosphate and oil), a lubricant base layer, and as a paint/coating base.
Phosphate coatings are used on steel parts for corrosion resistance, lubricity, or as a foundation for subsequent coatings or painting. The main types of phosphate coatings are manganese, iron, and zinc. We currently offer zinc phosphate coatings, which are used for corrosion resistance (phosphate and oil), a lubricant base layer, and as a paint/coating base.
Applications
- For rubber to metal bonding
- Uniform base for paint adhesion
- Non-metallic crystalline coating for absorbing oil or wax
- Protect parts from corrosion resulting from abrasion
Advantages
- Inexpensive
- Nice black finish when applied over a pre-black
- Good corrosion protection can be enhanced with chrome seal
- Dry-to-touch lubricants can be added
Part Size Capabilities
We operate one automatic hoist machine for both rack and barrel heavy zinc phosphate processing. This line is also used for part derusting and oil dipping.
Your part numbers, work orders, and quantities are tracked throughout the process cycle. Temperatures, process tank times, pH’s, etc., are linked to each individual barrel load and part number. When we process an item successfully, a recipe is created for that item for the next production run. You can be assured that your orders are processed with exactly the same specifications from lot to lot.
The post phosphate options include multiple oil options–from dry-to-touch oils to PPG’s Rust A Rest. For extra corrosion protection, a chromate seal can be applied prior to the oil application. You may also request your parts finished with a wax.
Our salt spray tests every phosphate, chrome seal, and oil order to 96 hours.