Kalkulačka krytia náteru WFT/DFT Stavebnícke nástroje
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Kalkulačka krytia náteru WFT/DFT

Spätným výpočtom získate hrúbku mokrého filmu a skutočnú spotrebu materiálu z cieľovej hrúbky suchého filmu, objemových tuhých látok, miery strát a plochy.

Prepínajte medzi mikrónmi a milmi pri práci s priemyselnými nátermi vrátane náročných aplikácií.

Zobrazte DFT, WFT, teoretické krytie a spotrebu na jednom mieste
Podporuje mikróny / mili a m²/L / ft²/gal
Zvláda podiely plôch pre stripe coat a opravy

Ako používať

  1. Vyberte systém jednotiek.
  2. Zadajte cieľovú DFT, objemové tuhé látky a počet vrstiev pre každú etapu.
  3. V prípade potreby pridajte plochu, mieru strát a podiel plochy.
  4. Skontrolujte WFT, teoretické krytie a skutočnú spotrebu.
  5. V prípade potreby skopírujte výsledok alebo zdieľajte aktuálny stav.

Ukážky

Two-stage heavy-duty coating (metric)

Vstup Area 100 m², loss rate 10%, Primer: DFT 75 µm, volume solids 80%, 1 coat, area share 100%, Topcoat: DFT 50 µm, volume solids 65%, 2 coats, area share 100%

Výstup Primer WFT 93.75 µm, theoretical coverage 10.67 m²/L, usage 10.42 L. Topcoat WFT 76.92 µm, theoretical coverage 13.00 m²/L, usage 17.09 L. Spolu 27.51 L.

Partial coating with stripe coat (imperial)

Vstup Area 10,000 ft², loss rate 10%, Stripe coat: DFT 3 mil, volume solids 80%, 1 coat, area share 25%

Výstup WFT 3.75 mil, theoretical coverage 427.78 ft²/gal, effective coverage 385.00 ft²/gal, actual usage 6.49 gal.

Formulas

  • WFT = DFT ÷ solidsFraction
  • Teoretické krytie = 1000 ÷ WFT(µm)
  • Teoretické krytie = 1604.1666667 ÷ WFT(mil)
  • Actual usage = Area × AreaShare × Vrstvy × DFT ÷ (1000 × solidsFraction × (1 - lossRate))
  • Celková DFT etapy = DFT × Vrstvy

Slovník

DFT

Dry film thickness left after curing. This is the main figure used in specifications and inspection criteria.

WFT

Wet film thickness immediately after application. Only the solids remain after drying.

Objemové tuhé látky

The share of volume that remains as film. Use volume solids for thickness conversion.

Teoretické krytie

A no-loss coverage estimate derived from WFT.

Podiel plochy

The share of total area assigned to a stage, such as stripe coat or touch-up work.

Poznámky

  • Táto kalkulačka používa objemové tuhé látky, nie hmotnostné.
  • Loss rate is a simplified model that varies with overspray, tool hold-up, container residue, and site conditions.
  • Podiel plochy can be set per stage. It works well for stripe coat and touch-up work.
  • Actual usage varies with the manufacturer's procedure, application method, temperature, humidity, and substrate condition.

Časté otázky

What is the difference between WFT and DFT?

WFT is the film thickness right after application, while DFT is the film thickness left after drying. Objemové tuhé látky are used to convert between them.

Are volume solids and weight solids the same?

No. Use volume solids for thickness conversion. If you only have weight solids, convert them separately first.

What loss rate should I enter?

Use a value that matches the application method, geometry, and your field experience. Higher overspray usually means a higher loss rate.

Can I use it without entering area?

Yes. Leave area blank if you only need the WFT and theoretical coverage calculation.

Can I mix metric and imperial units in one calculation?

No. Keep the entire calculation in one unit system at a time.