Interlac 661
Alkyd finish · INTL · manufacturer-sourced
How long before you can recoat International (AkzoNobel) Interlac 661?
Short answer
Launch-ready plan
Weatherproof, in-water and underway are different dates
- Prepare and apply the Alkyd finish
- Keep it dry for the stated time
- Launch or use only after the stated cure
This product’s stated stages Quoted at 77°F
- Safe to touch6 hours
- Safe to handle1 day
- Ready for another coat1 day
Worth noticing: Safe to touch at 6 hours; ready for another coat at 1 day.
Common mistake: Launching on the first dry day; most marine products need the immersion time stated.
Water-exposure plan
Splash, filling and continuous immersion are not equivalent
Splashes or dampness can use a different milestone.
Filling, launching or immersion requires the exact water milestone.
Use the Alkyd finish directions for alkyd enamel, marine paint, and boat topside; do not infer immersion readiness from touch-dry time.
Time the marine cure
Your countdown
Stated times
- Safe to touch6 hours
- Safe to handle1 day
- Ready for another coat1 day
From International (AkzoNobel) data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.
Manufacturer website: international-yachtpaint.com
Conditions & fine print
- Stated conditions: 77°F (25°C)
- Drying, recoat and launch times change with temperature, humidity and film thickness. Follow the current data sheet and label for your boat and climate.
- Region INTL. Formulas can differ between countries; check your container.
- Safe to touch: At 25°C (77°F).
- Safe to handle: At 25°C (77°F).
- Ready for another coat: At 25°C (77°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 Report outdated information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.
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
- International (AkzoNobel) Interlac 661
- Variant
- Alkyd finish
- Region
- INTL
- Listed use
- alkyd enamel, marine paint, boat topside
- Timed stages recorded
- touch, handle, recoat min
- Source checked
- 2026-10-25
Documentation: Technical data sheet · Issued 04/02/2015
Condition attached to the stated time: At 25°C (77°F).
About this product
A one-pack alkyd finish, so the data sheet lists no pot life. It is slow: 24 hours hard-dry at 25°C, and 62 hours at 5°C.
Using this specific product
International (AkzoNobel) Interlac 661 is listed here as the Alkyd finish version for alkyd enamel, marine paint, and boat topside. For repairing marine or RV equipment, 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 Alkyd finish; related versions can use different timing.
- For alkyd enamel, marine paint, and boat topside, pay particular attention to substrate preparation, temperature and water exposure.
- At 25°C (77°F).
How to check readiness
Check the immersion or launch milestone—not just touch-dry time. 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
Launching too soon can expose an incompletely cured film continuously.
Compare with similar products
- Compare with Interlux Micron CSCRecoat: 16 h there, 1 day here.
- Compare with Interlux BilgekoteRecoat: 12 h to 1.5 days there, 1 day here.
Questions
How long before you can recoat this product?
International (AkzoNobel) states: The data sheet gives a touch-dry time of 6 hours. Conditions: At 25°C (77°F).. The data sheet gives a hard-dry time of 24 hours; it is the closest handling figure. Conditions: At 25°C (77°F).. The data sheet gives a minimum of 24 hours before overcoating, with the maximum shown as extended. Conditions: At 25°C (77°F).. These are the manufacturer’s stated times, not a guarantee.
How slow is Interlac 661 in cool weather?
The data sheet gives touch-dry of 18 hours at 5°C, 10 hours at 15°C, 6 hours at 25°C and 5 hours at 35°C. Hard-dry is 62, 36, 24 and 12 hours at the same temperatures.
How long until this product is safe to touch?
International (AkzoNobel) states: The data sheet gives a touch-dry time of 6 hours. Conditions: At 25°C (77°F).. These are the manufacturer’s stated times, not a guarantee.
How long until this product is safe to handle?
International (AkzoNobel) states: The data sheet gives a hard-dry time of 24 hours; it is the closest handling figure. Conditions: At 25°C (77°F).. These are the manufacturer’s stated times, not a guarantee.
What affects how long this product takes to dry or cure?
Drying, recoat and launch times change with temperature, humidity and film thickness. Follow the current data sheet and label for your boat and climate. Follow the product label for your conditions.