Tnemec

Series 66 Hi-Build Epoxoline

High-build epoxy, five-temperature table · US · manufacturer-sourced

Check your container: This countdown is for the High-build epoxy, five-temperature table variant. Similar-looking versions may have different times.

How long before you can recoat Tnemec Series 66 Hi-Build Epoxoline?

Short answer

Ready for another coat: 12–14 hours after application.
Safe to touch: 2 hours after application.

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
Tnemec Series 66 Hi-Build Epoxoline
Variant
High-build epoxy, five-temperature table
Region
US
Listed use
steel coating, immersion service
Timed stages recorded
touch, handle, recoat min, immersion
Source checked
2026-10-25

Documentation: Official product page · Product page, accessed 2026-10-26

Condition attached to the stated time: It is 1 hour at 90°F and 4 hours at 50°F.

About this product

A high-build epoxy where temperature swings the table hard: handling takes 5 to 7 hours at 90°F but 24 to 30 at 50°F, and immersion runs from 4 days to over two weeks.

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 High-build epoxy, five-temperature table 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 70°F

  • Safe to touch2 hours
  • Safe to handle10–12 hours
  • Ready for another coat12–14 hours
  • Immersion-ready7–10 days

Worth noticing: Safe to touch at 2 hours; immersion-ready at 7–10 days.

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

Industrial protective coatings

Coat timeline

Plan the next coat and final use separately

  1. 1
    ApplyUse the High-build epoxy, five-temperature table directions and prepare for steel coating and immersion service.
  2. 2
    Next coatUse the listed recoat milestone; do not substitute touch-dry time.
  3. 3
    Normal useWait for the applicable handling, water or cure milestone.

Check the recoat window

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

Stated times

  • Safe to touch2 hours
  • Safe to handle10–12 hours
  • Ready for another coat12–14 hours
  • Immersion-ready7–10 days

From Tnemec product page · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.

Manufacturer website: tnemec.com

Conditions & fine print
  • Stated conditions: 70°F (21°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 US. Formulas can differ between countries; check your container.
  • Safe to touch: It is 1 hour at 90°F and 4 hours at 50°F.
  • Safe to handle: It is 5 to 7 hours at 90°F and 24 to 30 at 50°F.
  • Ready for another coat: It is 6 to 8 hours at 90°F and 30 to 36 at 50°F.
  • Immersion-ready: It is 4 to 5 days at 90°F and 14 to 16 at 50°F.
  • 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.

Using this specific product

Tnemec Series 66 Hi-Build Epoxoline is listed here as the High-build epoxy, five-temperature table version for steel coating and immersion service. 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 High-build epoxy, five-temperature table; related versions can use different timing.
  • For steel coating and immersion service, pay particular attention to surface preparation, film thickness, temperature, dew point and pot life.
  • It is 1 hour at 90°F and 4 hours at 50°F. It is 5 to 7 hours at 90°F and 24 to 30 at 50°F. It is 6 to 8 hours at 90°F and 30 to 36 at 50°F. It is 4 to 5 days at 90°F and 14 to 16 at 50°F.

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. Lift or move the item gently and avoid twisting the bond or pressing finished faces together. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required.

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?

Tnemec states: The page gives touch dry at 2 hours at 70°F. Conditions: It is 1 hour at 90°F and 4 hours at 50°F.. The page gives handle at 10 to 12 hours at 70°F. Conditions: It is 5 to 7 hours at 90°F and 24 to 30 at 50°F.. The page gives recoating after 12 to 14 hours at 70°F. Conditions: It is 6 to 8 hours at 90°F and 30 to 36 at 50°F.. The page gives immersion after 7 to 10 days at 70°F. Conditions: It is 4 to 5 days at 90°F and 14 to 16 at 50°F.. These are the manufacturer’s stated times, not a guarantee.

How long until Series 66 is ready for immersion at 70°F?

The page gives 7 to 10 days.

How long before this product can be immersed in water?

Tnemec states: The page gives immersion after 7 to 10 days at 70°F. Conditions: It is 4 to 5 days at 90°F and 14 to 16 at 50°F.. These are the manufacturer’s stated times, not a guarantee.

How long until this product is safe to touch?

Tnemec states: The page gives touch dry at 2 hours at 70°F. Conditions: It is 1 hour at 90°F and 4 hours at 50°F.. These are the manufacturer’s stated times, not a guarantee.

How long until this product is safe to handle?

Tnemec states: The page gives handle at 10 to 12 hours at 70°F. Conditions: It is 5 to 7 hours at 90°F and 24 to 30 at 50°F.. 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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