The ideal time to apply a foul-release coating system to underwater propellers and running gear depends on a few key factors:
Weather and Environment
- Dry, warm conditions are best. Aim for temperatures between 50°F and 95°F (10°C to 35°C) with low humidity.
- Avoid rainy or overly humid days, as moisture can interfere with adhesion and curing.
Boat Maintenance Schedule
- Apply before launching the boat for the season, ideally during haul-out or dry dock.
- If your boat is already in the water, you’ll need to haul it out to ensure the surfaces are clean, dry, and accessible.
Surface Preparation
- The coating must be applied to clean, bare metal. This means removing all old coatings, corrosion, and marine growth.
- Timing your application right after cleaning ensures the surface doesn’t oxidize before coating.
Curing Time
- Most foul-release systems require several hours to cure, and some may need overnight drying before re-submersion.
- Plan for at least 24 hours out of water post-application to ensure full bonding and performance2.
Pro Tip:
If you’re in a region with seasonal boating, late winter to early spring is perfect—just before peak boating season begins.
