Drying and recoat timing planner Construction tools
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Drying and recoat timing planner

Adjust data-sheet timings to site temperature and organize a proposal-ready schedule.

Adjust data-sheet timings to site temperature and see the earliest recoat, latest recoat guideline, and masking completion in one place.

Use °C or °F, then export a proposal-ready PDF from the same screen.

Temperature adjustment
Recoat window
Masking completion
PDF export
Multilingual

How to use the planner

  1. Choose the temperature unit and basis, then enter the site temperature.
  2. For each product, enter the reference temperature, earliest recoat, latest recoat, and masking completion.
  3. Optionally add the application start time, then review the schedule times.
  4. Review the results, then copy them, share the URL, or export a PDF.

Sample

Viewing a 20°C primer at 30°C

Input
Project: Exterior repaint / Site temp: 30°C / Reference temp: 20°C / Q10: 2.0 / Primer: 4-8h, masking 6h
Output
Temperature factor 0.50, earliest recoat 2h, latest recoat 4h, masking complete 3h

Viewing a 77°F top coat at 59°F

Input
Project: Shopfront repaint / Site temp: 59°F / Reference: 77°F / Q10: 2.0 / Top coat: 8-24h, masking 12h
Output
Temperature factor 2.00, earliest recoat 16h, latest recoat 48h, masking complete 24h

Glossary

Reference temperature
The temperature at which the data-sheet timing was specified.
Q10
The time multiplier for a 10°C shift. With 2.0, a 10°C drop roughly doubles the time, while a 10°C rise roughly halves it.
Earliest recoat
The earliest recommended time to apply the next coat.
Latest recoat guideline
The upper end of the recoat window. If it is exceeded, surface preparation may be required.
Masking completion
The estimated time when protection or masking can be completed.

Calculation formulas

  • temperatureFactor = Q10 ^ ((referenceTempC - siteTempC) / 10)
  • adjustedMinutes = referenceMinutes × temperatureFactor
  • targetTime = startTime + adjustedMinutes
  • Safe rounding: earliest time up, latest time down, masking time up

Notice (estimate only)

  • This is an estimate. Always follow the product data sheet and current site conditions first.
  • Humidity, ventilation, film thickness, substrate temperature, sunlight, wind, and mix ratio are not modeled precisely.
  • If the reference temperature or basis differs from the data sheet, match the same basis before entering values.
  • A recoat deadline varies by product. Check whether surface preparation is required after the window closes.

Frequently asked questions

Which temperature unit should I use, °C or °F?

Use the unit shown on the site and in the data sheet. Switching units converts the entered values.

The data sheet is based on 25°C / 77°F. Can I enter 20°C instead?

No. Enter the reference temperature exactly as specified in the data sheet.

What if the product does not list a latest recoat guideline?

Enter the same value as the minimum, or leave it blank. Missing values are shown as partial results.

Can humidity be considered too?

Not in this version. Humidity is shown only as a caution note and is not part of the estimate.

Can I reproduce the same inputs from a shared URL?

Yes. The URL restores the project name, temperature conditions, product rows, and settings.

Can I use the PDF directly in a proposal?

Yes. The proposal layout is designed for printing and PDF export.