Industrial Coating Calculator
A consolidated planning workspace for WFT/DFT, spreading rate, paint quantity and cost, two-component mixing and dew point. Manufacturer product data sheets and project specifications remain authoritative.
Film thickness
Coverage, quantity & cost
Mix ratio
Thinner is shown separately and is not assumed to be permitted. Follow the product TDS limits and stated basis for the percentage.
Dew point
The Magnus approximation is a planning calculation. This tool does not certify ambient suitability or compliance with a project specification.
Assumptions and source method
WFT/DFT uses the coating’s non-volatile content by volume. The spreading-rate relationship follows the method described in ISO 3233-3 and current manufacturer explanatory notes. Theoretical rate assumes a smooth surface and no loss. Practical quantity applies only the loss percentage you enter; surface profile, shape, overspray, mixing residue and operator technique can all change actual consumption.
Sources: ISO 3233-3 overview, Hempel spreading-rate method, and the American Meteorological Society discussion of dew-point expressions. Last reviewed 20 September 2026.