Powder coating buyers, estimators, applicators, production engineers and coating-line managers
Calculate powder coverage and consumption
Enter the exact powder specific gravity, target dry-film thickness and your measured material utilization. Project area and price are optional. No universal defaults are applied.
What this powder coating calculator estimates
The calculator uses the metric mass-volume relationship for a cured powder film. Theoretical consumption in g/m² equals specific gravity in g/cm³ multiplied by dry-film thickness in µm. Theoretical coverage in m²/kg equals 1000 divided by that consumption. The entered utilization then reduces theoretical coverage to a planning estimate for the coating line.
Use product-specific gravity and approved film thickness
Specific gravity varies by resin system, pigments, fillers, color and formulation, so use the current TDS value for the exact powder being purchased. Film thickness must come from the approved product data and project specification. Do not substitute a generic value when a finish, edge, corrosion or appearance requirement controls the build.
Separate theoretical yield from real material utilization
Theoretical yield assumes a uniform film and no material loss. Actual use can include unrecovered overspray, reclaim losses, booth and hose cleaning, color-change waste, variable deposition, rejects and powder left in equipment. Enter a measured utilization value from a comparable line and part family; the calculator does not invent one.
Measure the complete coated area and every coat
Count both sides, returns, internal faces and repeated parts that actually receive powder. Complex geometry, Faraday-cage areas, porous castings, sharp edges and rough blasted surfaces can alter deposition and film distribution. For primer-plus-topcoat or other multilayer systems, calculate each powder and thickness separately rather than treating them as one coat.
Use the result for budgeting and supplier comparison
The kg estimate can support purchasing scenarios, line trials and cost-per-area comparisons when every supplier is evaluated with the same area, thickness and utilization assumptions. For a DAMEI quotation, send the formulation or color, substrate, target film, coated area, line and reclaim setup, annual volume and destination. Final quantity, packaging, price and acceptance remain order-specific.
Formula source and decision boundary
TIGER Coatings publishes the same metric theoretical-yield formula and lists process cleaning, recycling loss, unrecycled overspray, film variation and surface roughness as reasons actual yield differs. This tool implements that transparent calculation; it does not certify transfer efficiency, coverage on a particular part, coating performance or purchase quantity. Validate the estimate on representative production parts.
FAQ
How do I calculate powder coating coverage per kg?
Divide 1000 by specific gravity multiplied by dry-film thickness in µm. That gives theoretical m²/kg at 100% utilization. Multiply by the measured utilization fraction for a practical planning estimate.
Which specific gravity should I enter?
Use the value in the current TDS or supplier record for the exact formulation and color. Do not assume one density for all powders because pigmentation and formulation can change it.
What should I use for transfer efficiency or utilization?
Use a measured value from the relevant booth, guns, reclaim arrangement, part geometry and operating window. If no reliable value exists, run a controlled production trial instead of presenting an assumed percentage as fact.
Does the calculator guarantee how much powder I need?
No. It is a transparent planning estimate. Confirm purchase quantity with representative trials, real line loss, reject allowance, color-change waste, packaging increments and the approved specification.