▽ +09.00Engineering Hub · Calculator

PU foam calculator

Work out the volume of sprayed polyurethane foam and its weight from the density, or the number of sets from the theoretical yield per set, with the spray loss.

Inputs

The values shown are an illustrative example, not product data; replace them with your project values and the approved TDS.

Input method

From densityWeight in kilograms.From theoretical yield per setNumber of sets.

Area

m²

The net area to be treated, without waste.

Thickness

The finished foam thickness required.

In-place density

kg/m³

From the TDS of the approved product.

Spray loss (optional)

Wind, heat and the surface profile raise the site loss.

Weight1,294 kg

Results

Result of the example values

Theoretical volume: 25.00 m³
Volume with loss: 28.75 m³
Weight: 1,294 kg
Sets: sets
Sets before rounding

Estimate only — final quantities depend on the approved specification, the product TDS and a site survey. No prices are given.

Send with a quotation request

+01.00Formulas

How it is calculated

Volume (m³) = area × thickness (mm) ÷ 1000
With loss = volume × (1 + loss %) · weight = volume with loss × density
Sets = round up [ volume with loss ÷ yield per set ]

QQuestions

Questions clients ask

How is a spray PU foam quantity calculated?

Volume = area × thickness, multiplied by the in-place foam density from the data sheet to get the weight, plus spray waste; the protective top coat is calculated separately.