Powder Coating Coverage Calculator

Formula

To calculate the powder coating coverage:

$\text{Coverage} = \frac{192.3}{\text{Specific Gravity} \times \text{Thickness}} \times \frac{\text{Transfer Efficiency}}{100}$

Where:

$\text{Coverage}$ is the coverage in square feet per pound (sq ft/lb)
Specific Gravity is the specific gravity of the powder
Thickness is the thickness of the coating in mils
Transfer Efficiency is the percentage of powder that adheres to the part
192.3 is a constant representing the industry standard for powder coating coverage

What is Powder Coating Coverage?

Powder coating coverage refers to the area that a specific amount of powder can cover. It depends on factors such as the specific gravity of the powder, the thickness of the coating, and the transfer efficiency[^1^][^2^].

Example Calculation

Let's assume the following values:

Specific Gravity = 1.5
Thickness = 2 mils
Transfer Efficiency = 70%
Area to be Coated = 100 sq ft

Using the formula:

$\text{Coverage} = \frac{192.3}{1.5 \times 2} \times \frac{70}{100} \approx 44.94 \text{ sq ft/lb}$

Total Powder Needed = $\frac{100}{44.94} \approx 2.22 \text{ lbs}$

The total powder needed is approximately 2.22 lbs.