HTHOMETALLYTHE PRACTICAL HOME GUIDE

Construction/ CALCULATOR

Wet-film target from dry thickness and volume solids

Relate a specified dry film to wet application thickness; distinguish theoretical spread from a purchase rate.

Use the selected coating specification, not a universal minimum. Total system thickness is not automatically the target for one coat.
Volume percentage, not mass percentage. Use the correctly mixed and permitted diluted material data; if unknown, do not substitute a guess.
Theoretical wet-film target

100.00 µm

Theoretical no-loss spreading rate

10.00 m²/L

Theoretical coating volume per square metre

0.100 L/m²

Interpretation:This is a theoretical film target, not measured compliance or a practical purchase rate.

Ideal uniform film using the entered as-applied volume-solids value. No spray loss, texture filling, absorption, sagging or product-specific cure effects are modelled. This predicts thickness, not adhesion or a guaranteed cured result. It does not authorize thinning. Do not use mass-solids data or confuse this no-loss spread with a practical purchasing coverage; follow the coating instructions and verify actual film thickness.

FROM ESTIMATE TO ACTION

Use the result, not just the number.

01

Verify the inputs

Measure or document each input. If a value is only an estimate, record its source and test a conservative alternative.

02

Keep the calculation traceable

Save the input link or copied result together with the date, units and assumptions. A number without its inputs cannot be checked later.

03

Confirm the decision

Compare the estimate with the related guide, current product data and requirements that apply at your location before buying or building.

Inputs to verify

Specified dry-film thickness per coat (µm)
Use the selected coating specification, not a universal minimum. Total system thickness is not automatically the target for one coat.
Volume solids of the coating as applied (%)
Volume percentage, not mass percentage. Use the correctly mixed and permitted diluted material data; if unknown, do not substitute a guess.

Continue your calculation

Construction

Paint quantity and can estimate

Convert measured paintable area, coats and the product’s declared coverage into litres and whole cans.

Construction

Tile quantity and pack estimate

Estimate full tiles, order area and packs from the net surface, tile dimensions and a stated cutting allowance.

Construction

Tile adhesive mass and bag quantity

Use the selected product’s application-specific consumption, then add stated losses and round to bags.