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Interlux Trilux 33 Antifouling Boat Bottom Paint

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Starting At: $68.19
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Interlux Trilux 33 Bottom Paint

Trilux 33 is a tin-free antifouling formulated to provide safe, effective protection for aluminum boats, outdrives & outboards, or where a bright color or bright white is required. It is based on the latest Biolux Technology, for improved control of slime and algae growth. It replaces Trilux and Micron 33.Trilux 33 is for use below the waterline on underwater boat hulls and parts in fresh, salt and brackish water and can be brush or roller applied. Spray application is recommended only for Professional Applicators that have all of the proper safety equipment including a full-face shield. Specially formulated to be the safest & most effective product for use on aluminum boats, outdrives and outboards. It can also be applied to fiberglass, wood and other underwater metals. Highly effective antifouling protection from a new, improved version of Biolux technology. Slow polishing system makes it suitable for fast, active craft as polish-through at high speeds is avoided.


  • Formulated to be the safest & most effective antifouling for use on aluminum boats, outdrives, and outboards.
  • Works equally well on fiberglass, wood, and all underwater metals.
  • Biolux Technology blocks slime
  • Slow polishing,avoids seasonal paint build-up
  • Available in various bright, clean colors


  • Finish: Low sheen
  • Number of Coats: 2
  • Coverage (Approx): Brush/roller - 399 ft²/gal   |     Spray - 266 ft²/gal
  • VOC: 390 g/lt.
  • Colors: YBA060 Blue, YBA063 Black, YBA068 White
  • Sizes Available: 1 US Quart, 1 US Gallon

Associated Products:

Interlux Special Thinner: Thinning and cleaning on bare wood

Interlux InterProtect: Epoxy barrier for blister protection and priming

Interlux Fiberglass Solvent Wash: To clean bare fiberglass prior to application

How To Apply Trilux 33 Boat Paint

Trilux 33 should only be applied to clean, dry, and properly prepared surfaces. All metal surfaces must be primed with InterProtect or Primocon. Do not apply Trilux to tin-based paint such as Micron 33. At least two coats of Trilux 33 should be applied.

  • Application Method: Brush, roller, airless or conventional spray.
  • Number of Coats: 2 minimum
  • Dry Film Thickness per Coat: 2 mils (3.6 wet mils)
  • Coverage: 443.7 sq. ft/gal.
  • Application Temp: 41° F. Min. / 95°F. Max.
  • Thinner: Special Thinner 216
Temp To Touch To Recoat To Launch
95°F 2 HR 5 HR 10 HR
73°F 3 HR 6 HR 12 HR
50°F 6 HR 20 HR 30 HR

Surface Preparation

  • Bare Aluminum
    • Sand with medium grit emery cloth to a bright metal finish. Wipe clean.
    • Apply one very thin coat of Viny-Lux Primewash 353-354.
    • Prime with InterProtect 2000E/2001E.
      • Note: on sandblasted aluminum, the Viny-Lux Primewash can be omitted if priming with InterProtect the same day as blasting.
    • Apply two coats of Trilux 33
  • Factory Finished Aluminum
    • Prime with Primocon
    • Apply two coats of Trilux 33
  • Bare Fiberglass
    • Scrub well using soap and water and a stiff brush. Rinse with fresh water.
    • Wipe a small area with a clean rag that has been wetted with Fiberglass Solvent Wash 202.
    • While surface is still wet, wipe with a clean, dry rag. Continue this process until the entire surface has been cleaned.
    • No-Sand System:
      • Apply one thin, continuous coat of Interlux Fiberglass No-Sand Primer.
    • Sanding System:
      • Sand with 80 grade paper. Remove sanding residue.
      • Wipe with Fiberglass Solvent Wash 202.
  • Bare Wood
    • Sand with 80 grade paper.
    • Clean with 216 Thinner.
    • Apply first coat reduced 10% with Special Thinner 216.
    • Fill seams, if necessary, with Seam Compound Brown 30.
  • Epoxy Coated Wood
    • Begin by scrubbing well using soap and water and a stiff brush.
    • Sand with 120 to 180 grade paper.
    • Remove sanding residue.
    • Wipe with Fiberglass Solvent Wash 202.
    • Prime with Interprotect 2000E/2001E.
  • Previously Painted Surfaces
    • With Trilux 33:
      • Sand with 80 grade paper.
    • Other antifoulings:
      • Sand surface and wipe clean.
      • Prime with Primocon.
      • Remove antifouling paint in poor condition with Interstrip Semi-Past 299E.

Application Tips:

  • Airless spray pressure should be 170-204 bar/2500-3000 psi. Use tip size 0.53 mm/21 thou.
  • For conventional spray, pressure pot pressure should be 3.44-4.47 bar/50-65 psi (gun pressure); 10-15 psi (pot pressure).
  • Conventional spray tip size should be 1.8-2.2mm/70-85 thou.
  • Bare wood applications should get 3 coats of Trilux 33.

pdficon.pngClick to Download Interlux Trilux 33 Application Instructions

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Google Product Type:
Paint Type:
Ablative Antifouling
Number of Seasons:
Multi Season
Antifouling Type:
Copper Free
Hull Material:
Aluminum, Fiberglass, Steel, Wood
Water Type:
Brackish Water, Fresh Water, Salt Water
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