Paint DFT Calculator (WFT × Solids)
Dry film from wet film and volume solids — the coating inspector's triangle.
The wet-film comb tells you NOW (fixable); the dry gauge tells you too late. Painters chase WFT = target DFT ÷ solids — 200 µm wet of a 65% epoxy leaves 124 µm dry.
Formula
Paint DFT Calculator (WFT × Solids) is a free dft calculator for design engineers, metallurgists and QA inspectors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Paint DFT Calculator (WFT × Solids)
Dry film from wet film and volume solids — the coating inspector's triangle. The calculation implements DFT = WFT × VS% / (1 + thinner%) (SSPC-PA 2; coating inspector practice). The wet-film comb tells you NOW (fixable); the dry gauge tells you too late. Painters chase WFT = target DFT ÷ solids — 200 µm wet of a 65% epoxy leaves 124 µm dry.
How to use Paint DFT Calculator (WFT × Solids)
- 1Enter Wet film thickness in µm.
- 2Enter Volume solids in % (Epoxy HB 65–80 · alkyd 45–55 · inorganic zinc ~60).
- 3Enter Thinner added in %.
- 4Read Dry film thickness instantly — no submit button needed.
Why use Paint DFT Calculator (WFT × Solids)?
- ✓Implements the standard formula — DFT = WFT × VS% / (1 + thinner%)
- ✓Reference cited on-page: SSPC-PA 2; coating inspector practice
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Paint DFT Calculator (WFT × Solids) use?+
It computes DFT = WFT × VS% / (1 + thinner%), per SSPC-PA 2; coating inspector practice. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
The wet-film comb tells you NOW (fixable); the dry gauge tells you too late. Painters chase WFT = target DFT ÷ solids — 200 µm wet of a 65% epoxy leaves 124 µm dry.
Where do the material property defaults come from?+
Defaults are standard handbook values (ASM, manufacturer datasheets, the cited standard). Always substitute certified values from your material's test certificate for critical work.
Is the Paint DFT Calculator (WFT × Solids) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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