Jotun

Jotamastic Plus

Two-component epoxy mastic · INTL · manufacturer-sourced

Check your container: This countdown is for the Two-component epoxy mastic variant. Similar-looking versions may have different times.

How long before you can recoat Jotun Jotamastic Plus?

Short answer

Ready for another coat: 7 hours after application.
Safe to touch: 4 hours after application.
Industrial protective coatings

Film-build schedule

Recoat has a floor and a ceiling, and film thickness moves both

  1. Prepare the surface and apply the Two-component epoxy mastic to the stated thickness
  2. Recoat inside the window the data sheet gives
  3. Return to service only at the stated cure

This product’s stated stages Quoted at 73°F

  • Safe to touch4 hours
  • Ready for another coat7 hours
  • Light foot traffic7 hours
  • Full cure7 days

Worth noticing: Touch-dry comes at 4 hours, but full cure is 7 days, about 42 times longer.

Common mistake: Recoating after the maximum window has closed; the next coat may not bond without abrading.

Check the recoat window

When did this coat go on?
Conditions that affect drying
Where?
Thickness

Stated times

  • Safe to touch4 hours
  • Ready for another coat7 hours
  • Light foot traffic7 hours
  • Full cure7 days

From Jotun data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.

Manufacturer website: industrialcoatingsltd.com

Conditions & fine print
  • Stated conditions: 73°F (23°C)
  • Protective-coating times are for the stated film thickness, temperature and humidity. Cold steel, thick films and poor airflow lengthen them. Follow the current data sheet.
  • Region INTL. Formulas can differ between countries; check your container.
  • Safe to touch: At 23°C substrate. The sheet's table text is scrambled, so values were matched by order.
  • Ready for another coat: At 23°C substrate.
  • Light foot traffic: At 23°C substrate.
  • Full cure: At 23°C substrate.
  • Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Confirm this is your product

Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.

Exact listing
Jotun Jotamastic Plus
Variant
Two-component epoxy mastic
Region
INTL
Listed use
steel mastic, maintenance, repairs
Timed stages recorded
touch, recoat min, light foot, full cure
Source checked
2026-10-25

Documentation: Technical data sheet · Technical data sheet (NGCG copy)

Condition attached to the stated time: At 23°C substrate. The sheet's table text is scrambled, so values were matched by order.

About this product

A two-pack mastic with a 1.5 hour pot life at 23°C. It cures for service in 7 days at 23°C and 3 days at 40°C, and the sheet defers maximum recoat to a separate guide.

Using this specific product

Jotun Jotamastic Plus is listed here as the Two-component epoxy mastic version for steel mastic, maintenance, and repairs. For coating steel or industrial surfaces, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.

Before you start

  • Confirm the package says Two-component epoxy mastic; related versions can use different timing.
  • For steel mastic, maintenance, and repairs, pay particular attention to surface preparation, film thickness, temperature, dew point and pot life.
  • At 23°C substrate. The sheet's table text is scrambled, so values were matched by order. At 23°C substrate.

How to check readiness

Check dry film thickness and the recoat window before the next coat. Touch only a hidden edge first; a dry surface can conceal a soft layer underneath. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required. Try a protected edge first and avoid turning, dragging or concentrated loads.

Avoid this mistake

Recoat windows can close; past the maximum, abrading is usually required.

Compare with similar products

Keep going

Questions

How long before you can recoat this product?

Jotun states: The sheet gives surface dry in 4 hours. Conditions: At 23°C substrate. The sheet's table text is scrambled, so values were matched by order.. The sheet gives dry to overcoat of 7 hours at minimum. Conditions: At 23°C substrate.. The sheet gives walk-on dry in 7 hours. Conditions: At 23°C substrate.. The sheet gives dried and cured for service in 7 days. Conditions: At 23°C substrate.. These are the manufacturer’s stated times, not a guarantee.

How long is the pot life of Jotamastic Plus?

The sheet gives 1.5 hours at 23°C.

How long does this product take to fully cure?

Jotun states: The sheet gives dried and cured for service in 7 days. Conditions: At 23°C substrate.. These are the manufacturer’s stated times, not a guarantee.

How long before I can walk on tile set with this product?

Jotun states: The sheet gives walk-on dry in 7 hours. Conditions: At 23°C substrate.. These are the manufacturer’s stated times, not a guarantee.

How long until this product is safe to touch?

Jotun states: The sheet gives surface dry in 4 hours. Conditions: At 23°C substrate. The sheet's table text is scrambled, so values were matched by order.. These are the manufacturer’s stated times, not a guarantee.

What affects how long this product takes to dry or cure?

Protective-coating times are for the stated film thickness, temperature and humidity. Cold steel, thick films and poor airflow lengthen them. Follow the current data sheet. Follow the product label for your conditions.

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