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Fiberglass Bottomkote Racing Bronze, formerly known as Bottomkote Classic, is a hard modified epoxy antifouling paint that can be applied over any other antifouling bottom paint type, including vinyls.
Racing Bronze dries fast, and Interlux recommends it for wood, steel, and fiberglass hulls. 42% Copper content provides solid protection against all types of fouling (including Zebra Mussels). It works well in salt, fresh, and brackish waters.
Not for use in California
|Drying Information||50 Degrees F||59 Degrees F||73 Degrees F||95 Degrees F|
|Touch Dry (ISO)||3 hours||2 hours||1 hour||30 min|
|Immersion||12 hours||10 hours||8 hours||6 hours|
|Bottomkote with Irgarol||6 hours-||5 hours-||4 hours-||2 hours-|
BARE FIBERGLASS - (POLYESTER OR VINYLESTER): Scrub the surface thoroughly with using a stiff brush and Interlux All Purpose Boat Soap. Rinse with fresh or salt water to remove loose dirt. Flush with fresh water to remove the soap residue and allow to dry. Remove mold release wax using one of the following methods. Apply Fiberglass Surface Prep YMA601 with a maroon, 3M Scotch-BriteTM pad and scrub well. Flush with fresh water or wipe off with a clean, wet cloth ensuring that no traces of Fiberglass Surface Prep remain. An alternative method would be to dampen a cheesecloth with Interlux Fiberglass Solvent Wash 202. Wipe thoroughly to remove all surface contamination and cleaners. Wipe off with a clean, dry rag before liquid dries. To be certain the contamination has been removed, run water over the surface. If the water beads up or separates, repeat one of the above methods. When the water sheets off, all contamination has be removed. Sanding does not remove contamination. After the surface has been properly prepared follow the application system below.
Bare Fiberglass - No Sanding System: Clean surface as above. Apply one thin, continuous coat of Interlux Fiberglass No-Sand Primer with brush or roller (do not spray; do not sand). Follow application guidelines for the primer and apply Fiberglass Bottomkote with Irgarol.
Bare Fiberglass -Sanding System: Clean the surface following the preparation procedure above. Sand with 80 grade (grit) paper and remove sanding residue with Fiberglass Solvent Wash 202. Repair defects with Watertite, then sand and wipe clean. Apply Fiberglass Bottomkote with Irgarol.
BARE WOOD: Sand with 80 grade (grit) sandpaper and remove sanding residue with Special Thinner 216. Repair defects with Watertite, then sand and wipe clean. Apply first coat reduced 10% with Special Thinner 216 or Brush-Ease 433. Fill seams, if necessary, with Seam Compound Brown 30. Apply 2 further coats of Fiberglass Bottomkote with Irgarol.
PREVIOUSLY PAINTED SURFACES:
In Good Condition: Wet sand surface with 80 grade (grit) paper to a clean firmly attached surface. Clean with Special Thinner 216.
In Poor Condition: Use Interstrip to remove all traces of antifouling. Sand and wipe clean with Fibreglass Solvent Wash 202 for fiberglass and wood substrates. For steel, sandblast or grind to bright metal finish.
STEEL: Contact the Interlux Technical Service Department at 1-800-468-7589 for full information on how to properly prime underwater metals.
Method Apply a minimum of 2 coats (3 on bare wood) by brush, short-nap roller or spray. To prevent premature failure, ensure correct amount of paint is applied using the coverage as a guide.
Hints Mixing Stir or shake contents thoroughly before use.
Thinner Special Thinner 216 or Brush-Ease 433.
Thinning Thin only if necessary. Thin no more than 10%. Use Brush-Ease 433 if roller or brush drags during application.
Cleaner Painted Surfaces - Special Thinner 216. Bare Fiberglass - Fiberglass Solvent Wash 202 or Fiberglass Surface Prep YMA601. Bare Wood - Special Thinner 216.
Airless Spray Tip Size: 0.53-0.66 mm/21-26 thou. Pressure: 170-204 bar/2500-3000 psi.
Conventional Spray Pressure Pot: Tip Size: 1.8-2.2 mm/70-85 thou. Pressure: 4.08-4.76 bar/60-70 psi (gun pressure); 10-15 psi (pot pressure).
Roller Use a 3/8" nap solvent resistant roller.
Other Take care to apply all the paint calculated even if it means applying an extra coat. Do not apply thin coats. Fill seams if necessary in between 1st and 2nd coats of antifouling with Underwater Seam Compound 30. Spraying of antifouling paints is prohibited in Canada.
Some Important Points Not suitable for use over aluminium/alloy substrates. Colors may fade or change above the waterline. Stir well before use. Product temperature should be minimum 10 deg C/50 deg F and maximum 29 deg C/85 deg F. Ambient temperature should be minimum 10 deg C/50 deg F and maximum 29 deg C/85 deg F. Substrate temperature should be minimum 10 deg C/50 deg F and maximum 29 deg C/85 deg F.
Compatibility/Substrates Not suitable for use over Aluminium/Alloy substrates. Suitable for fiberglass, wood and painted surfaces. Do not apply over tin-based copolymer antifouling paints. Do not use under vinyl based antifouling paints such as VC Offshore, Baltoplate or TBT based antifoulings such as Micron 33.
Number of Coats 2 coats, 3 on bare wood
Coverage (Theoretical) - 455 (sq ft/Gal)
Recommended DFT 2.0 mils dry
Recommended WFT 3.5 mils wet
Application Methods Brush, Conventional Spray, Roller, Airless Spray