Fiberglass Bottomkote NT
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Bottomkote™ NT gives you the advantages of both hard and soft ablative antifouling paints
Fiberglass Bottomkote NT features dual-resin technology, providing the advantages of both hard and soft ablative antifouling paints. With the durability of a hard antifouling paint, Fiberglass Bottomkote NT resists premature wear-through. And like an ablative paint, it has a slow polishing action that keeps the hull clean and smooth. The slow polishing action of Fiberglass Bottomkote NT also reduces paint build-up, which minimizes the need for sanding at haulout.
Interlux Bottomkote dries quickly, allowing you the luxury of painting and launching your boat on the same day.
Bottomkote NT is recommended for use on fiberglass, wood, and properly primed metal (except aluminum) boat hulls. Bottomkote can be used in fresh, salt, and brackish waters.
Key Features
- For fresh-, salt-, and brackish waters
- Durable finish resists wear through
- Dries quickly for paint and launch on the same day
- For fiberglass, wood, and steel hulls
- Slow polishing action reducesthe need for sanding at haulout
Physical Data
- Type: Dual-resin, hybrid hard/ablative
- Finish: Matte
- Available colors: Red, Blue, Black, Green
- Components: 1
- Curing mechanism: Solvent Release
- Solids by weight (Theoretical): 52 +/- 2%
- Solids by Volume (Theoretical): 50 +/- 2%
- Coverage: 400sq.ft. /gal.
- VOC: 449 grams/liter (Max) (as supplied and applied)
- Active ingredients: 25% Cuprous oxide
- Flash point: None
Application
- Application Method: Brush, roller, airless, or conventional spray
- Number of coats recommended: 2 (3 on bare wood)
- Dry Film Thickness: 2 mils
- Wet Film Thickness: 4.3 mils
- Applicator: High-quality short nap roller (maximum 3/8” nap)
- Application temperature: Min. /Max. Range: 50° F. Min/95°F. Max
- Thinner: Special Thinner 216, Model 117598 or Brush-Ease 433, Model 203679
Drying times
| Drying | @50°F | @77°F | @95°F |
|---|---|---|---|
| To touch | 3 hr. | 1 hr. | 30 min. |
| To recoat | 6 hr. | 2 hr. | 3 hr. |
| To launch | 12 hr. | 6 hr. | 3 hr. |
*The above dry times are minimums. It may be recorded after the minimum time shown. There is no maximum dry time before launching.
Get the right amount of paint:
| Boat Type | Bottom Paint |
|---|---|
| 10' Dinghy | 1 qt. |
| 14' Outboard | 1-2 qt. |
| 18' Runabout | 2 qt. |
| 20' Sailboat | 3 qt. |
| 24' Runabout | 3-4 qt. |
| 30' Sailboat | 1.5 gal. |
| 32' Cruiser | 1.5-2 gal. |
| 36' Auxiliary | 2 gal. |
| 40' Cruiser | 2.5 gal. |
| 45' Sailboat | 3-3.5 gal |
| 50' Sportfisher | 4+ gal. |
Another way to determine bottom paint quantity is to estimate the approximate surface area of the hull below the waterline, using the following formula:
Length x Beam x .75 = Approximate underwater surface area in square feet.
Each paint has a “theoretical coverage” area, but most paints require at least two coats, so you can expect actual coverage to be no greater than half of the theoretical value.
More Information
For detailed application instructions, see the Fiberglass Bottomkote-NT data sheet. NOTE: Manufacturer data sheets are subject to revision. Linked data sheets are believed to be accurate at the time of publication.
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