1. Enter the model keyword in the first column of the calculator, and after selecting from the dropdown, the model'svolume solids, recommended dry film thickness and densitywill be brought out automatically; then fill in the application area and dry film thickness and click the button to get the quantity in kg or litres.
2. Loss: roller factor approx.1.1, airless spray approx.1.3, air spray approx.1.4— use these as reference for large flat components; complex and small parts shall be calculated separately. In the table, the 'Loss' columntakes only the factor(e.g.1.3), ; percentage values are not recognised; the result row states the factor actually used for verification. Leave blank for no loss.
3. Algorithm: theoretical spreading rate (m²/L) = volume solids (%) × 10 ÷ dry film thickness (µm); quantity = application area × number of coats ÷ spreading rate × loss factor; kg quantity = litre quantity × density.
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For actual quantities and coating systems of similar projects, seeCase Studies; for places where film thickness and loss are easily miscalculated, see the Information Centre.
The theoretical spreading rate is measured on a smooth test panel; on site, more paint is almost always used: a rough blasted surface consumes more paint than a smooth one, the loss on complex components and small parts is far higher than on large flat areas, and edges, welds and bolts also consume more. In addition, the specified dry film thickness is often higher than the manufacturer's recommended value; if the recommended film thickness is substituted directly, the result will be low. When ordering, leave some margin above the calculated result.
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