Phosphate Coating Calculator

Calculate phosphate conversion coating weight, chemical consumption, and bath life for pretreatment processes.

Part surface area (sq ft)

Phosphate type (1-3)

Bath temperature (°F)

Immersion time (sec)

Concentration (%)

Bath volume (gal)

Parts per hour

Tab to move between fields

Coating weight (mg/sq ft)

300

Bath life (days)

104

Chemical use (oz/sq ft)1

Daily chemical usage (gal)250

Daily throughput (sq ft)32,000

Rinse water (gal/hr)40

How to Use This Calculator

Enter Part surface area (sq ft), Phosphate type (1-3), and Bath temperature (°F).
Set Immersion time (sec), Concentration (%), and Bath volume (gal).
Adjust Parts per hour as needed.
Review Coating weight (mg/sq ft) and Bath life (days).
Use Chemical use (oz/sq ft) and Daily chemical usage (gal) to inform your decision.

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