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Interlux Fiberglass Bottomkote NT (New Technology) uses Dual Resin Technology to provide the advantages in both ablative and hard antifouling paints.
This durable coating prevents premature wear-through, yet it has a slow polishing effect that keeps the hull clean & smooth without the heavy paint build-up you can get year after year with a traditional hard antifouling.
Because Bottomkote NT dries so quickly, you can paint and launch the boat the same day. Suitable for all substrates except aluminum.
REBATE: 2023 Interlux Spring Mail-In Rebate Program - see the INFO & GUIDES tab for details!
Purchase up to two (2) gallons of eligible Interlux antifouling paint or up to two (2) quarts of Cetol® Marine and VC®17m Extra between February 1, 2023, and June 1, 2023, and save with the Interlux manufacturer's mail-in rebate. See the Interlux 2023 Spring Mail-In Rebate form for complete details.
PREVIOUSLY PAINTED SURFACES: In Good Condition Remove loose paint by sanding with 80 grade (grit) paper, wipe with Special Thinner 216. In Poor Condition Remove antifouling paint in poor condition with Interstrip Semi-Paste 299E.
BARE FIBERGLASS: Begin by scrubbing well using soap and water and a stiff brush. Rinse with fresh water and allow to dry. Wipe a small area with a clean rag that has been wetted with Fiberglass Solvent Wash 202. While the surface is still wet, wipe with a clean, dry rag. Continue this process until the entire surface has been cleaned. Sand with 80 grade (grit) paper. Remove sanding residue. Wipe with Fiberglass Solvent Wash 202.
BARE WOOD: Sand with 80 grade (grit) paper. Clean with Special Thinner 216. Apply first coat reduced 10% with Special Thinner 216. Fill seams, if necessary, with Seam Compound Brown 30.
STEEL: Contact Interlux® for further details.
Method At least 2 coats should be applied.
Thinner Bare Wood - Special Thinner 216.
Cleaner Bare Fiberglass - Fiberglass Solvent Wash 202.
Bare Wood - Special Thinner 216.
Painted Surfaces - Special Thinner 216.
Airless Spray Pressure: 170-204 bar/2500-3000 psi. Tip Size: 0.53 mm/21 thou.
Conventional Spray Pressure Pot: Pressure: 4.08-4.76 bar/60-70 psi (gun pressure); 10-15 psi (pot pressure). Tip Size: 1.8-2.2 mm/70-85 thou.
Other Spraying of antifouling paints is prohibited in Canada. For application of Bottomkote to underwater metals such as stainless steel, cast iron, lead and bronze, see Interprotect® bulletin. After painting, Bottomkote must be launched within 48 hours.
Some Important Points Do not use above the waterline. Product temperature should be minimum 10°C/50°F and maximum 29°C/85°F. Ambient temperature should be minimum 10°C/50°F and maximum 35°C/95°F. Substrate temperature should be minimum 10°C/50°F and maximum 29°C/85°F.
Compatibility/Substrates Apply to clean, dry, properly prepared surfaces only. Surface must be in sound condition. Do not apply Bottomkote over aluminum. Do not apply Bottomkote over graphite antifoulings.
Number of Coats
2 Bare Wood: 3 coats (first thinned)
Coverage (Theoretical) - 500 (ft2/Gal) by brush
Recommended DFT 2.0 mils dry
Recommended WFT 4.3 mils wet
Application Methods Brush, Roller, Airless Spray, Conventional Spray (Pressure Pot)
January 31, 2023
I have used this paint 2 gallons per year on 37 Egg for the last 10yrs. It is reasonably priced and ablative action is good enough for short North East April to Oct season. Other than light cleaning on waterline holds up well enough. I cannot compare to other but works for me.
June 6, 2022
I purchased a 3 gallon black and expected a rebate on it for at least up to 2 gallons for it like the rebate stated. Went through the whole process and they won't honor it. The rebate didn't say the 3 gallons were not eligible or what products were eligible. Just up to 2 gallons were rebatable. So disappointed. I blame Interlux.
May 31, 2022
This paint applied easily, flowed well, an has little odor.
October 29, 2021
June 9, 2021
Although the mail system damaged the first try, delivered broken open JD quickly sent another can(Damaged as well) but survived the trip. Excellent customer service and very responsive. Pain worked well and now looking forward to boating season.
May 12, 2021
Have used this for years to protect a 1981 vintage sailboat and have never been let down at the end of the season.
May 6, 2021
One gallon covered a 33' cruiser. Easy company to work with. Will buy from these folks again.
April 10, 2021
putting it on steel hull
December 18, 2020
Been using this for a number of years. Used to use a much higher priced product, then tried progressively cheaper paints, down to the ones that didn't work. This is the least expensive, but still quite effective, bottom paint I've found for use in our waters.
November 10, 2020
its ok paint for the price ,i only gave it 3 stars because the can was bent up badly it didnt leak but i will not be able to reseal and save any leftover paint for touch up