Patina Chemical Calculator

Calculate chemical solution quantities for applying patina finishes to bronze sculpture.

Sculpture height (in)

Sculpture width (in)

Sculpture depth (in)

Patina type

Number of coats

Surface texture (1-2.5)

Tab to move between fields

Total solution (oz)

15.7

Total solution (mL)466

Chemical needed (g)2.5

Water needed (mL)466

Sealing wax (oz)7

Surface area (ft²)7

Application temp (°F)190

Chemical cost$0.37

Wax cost$3.50

Total supplies cost$18.87

How to Use This Calculator

Enter the sculpture's height, width, and depth in inches to estimate surface area.
Select patina type: liver of sulfur (brown/black), ferric nitrate (red-brown), cupric nitrate (green), or bismuth nitrate (white/blue).
Set the number of coats (1-10) and the surface texture factor (1.0 smooth to 2.5 very rough).
Review total solution volume (oz and mL), chemical grams, water mL for mixing, sealing wax, and recommended application temperature.
Check the cost breakdown chart for chemical and wax costs, plus total supplies cost including safety gear.
Always apply patina to a heated sculpture and work in a well-ventilated space with proper PPE.

How the result changes with Surface texture (1-2.5)

Sculpture height (in): Overall height of the bronze sculpture.
Sculpture width (in): Maximum width of the sculpture.
Sculpture depth (in): Maximum depth of the sculpture.
Patina type: 0 = liver of sulfur (brown/black), 1 = ferric nitrate (red-brown), 2 = cupric nitrate (green), 3 = bismuth nitrate (white/blue).
Number of coats: Number of patina coats to apply. 3-5 typical for rich color.
Surface texture (1-2.5): 1.0 = smooth cast, 1.5 = moderate texture, 2.0+ = very rough/detailed surface.

Total solution (oz): Total patina solution needed for all coats.
Total solution (mL): Total solution in milliliters.
Chemical needed (g): Weight of patina chemical (dry) to dissolve.
Water needed (mL): Hot water to mix with the chemical.
Sealing wax (oz): Paste wax for final protective coat.
Surface area (ft²): Estimated effective surface area with texture factor.
Application temp (°F): Recommended solution temperature for application.
Chemical cost: Cost of the patina chemical.
Wax cost: Cost of paste wax sealer.
Total supplies cost: Total cost including chemicals, wax, and safety supplies.

Identify Input Parameters
4 parameters
Sculpture height (in) = 24, Sculpture width (in) = 14, Sculpture depth (in) = 10, Patina type = 0 = 6 input(s) provided
Calculate Total solution
Total solution = surfaceAreaFt2 * ozPerSqFtPerCoat * numberOfCoats
15.7 = 15.7
Calculate Total solution
Total solution = totalSolutionOz * 29.5735
466 = 466
Calculate Chemical needed
2.5 = 2.5