single season boat bottom paint
single season boat bottom paint
TotalBoat Underdog In Use 01
TotalBoat Underdog In Use 02
TotalBoat Underdog In Use 03
TotalBoat Underdog In Use 04
TotalBoat Underdog In Use 05
TotalBoat Underdog In Use 06
TotalBoat Underdog In Use 07
TotalBoat Underdog In Use 08
Underdog Boat Bottom Paint

Underdog Boat Bottom Paint


An affordable, solvent-based antifouling boat bottom paint for single-season protection in low fouling conditions. Ablative technology continuously releases fresh 24% cuprous oxide biocide while minimizing paint build-up. An unbeatable value for short-season boaters.

SKU: N/A Category:


  • Affordable single season boat bottom paint offers fouling protection for boats in fresh or salt water
  • Durable finish withstands beaching and trailering better than traditional ablative bottom paints
  • Ablative single season bottom paint paint continuously exposes a fresh layer of biocide as paint wears away gradually
  • For use on wood, fiberglass, steel, iron and most previously painted boat bottoms in good condition
  • Colors: Black, Blue, and Red
  • Size: Gallon
  • Each order includes a free roller & metal tray kit, paint suit, an abrasive pad, 1 roll of painter’s masking tape, and two 10″ wooden stir sticks

Economical and effective antifouling protection

Underdog Boat Bottom Paint releases its 24% copper content at a controlled rate to keep heavy soft growth, slime, algae, and grasses at bay for a full season. It’s an unheard-of value in the world of bottom paints.

Easy to apply – even over existing paint

A sanded, cleaned surface in good condition is all Underdog needs; it doesn’t matter if it’s going over last year’s paint. Just stir, pour, and apply by brushing, rolling, or spraying. Underdog has great coverage characteristics, and adheres extremely well to fiberglass and wood.

Resists abrasion from trailering, beaching, and light scrubbing

Underdog single season boat bottom paint has the ability to thwart barnacles and slime works best on boats that see frequent use, and its durable, ablative finish stands up well to trailering.


  • Cuprous oxide: 24%
  • Application: Brush, roll (3/16″ nap or foam solvent-safe roller cover is recommended), or spray (airless or conventional)
  • Thinning: TotalBoat Special Brushing Thinner 100
  • Surface prep solvents: TotalBoat Special Brushing Thinner 100, TotalBoat Dewaxer & Surface Prep
  • Cleanup: TotalBoat Special Brushing Thinner 100 or TotalBoat Dewaxer & Surface Prep
  • Primer (for bare fiberglass and bare steel): TotalBoat TotalProtect Epoxy Barrier Coat and Primer
  • Number of coats: 2
  • Dry time to overcoat: 1.5 hours @ 90°F, 3 hours @ 70°F, 6 hours @ 50°F
  • Dry time to launch: 6 hours @ 90°F, 10 hours @ 70°F, 16 hours @ 50°F
  • Coverage: 500 sq. ft. per gallon
  • Do not use on aluminum hulls. For aluminum and underwater metals, see TotalBoat AlumiPaint AF and TotalBoat Outdrive AF.

WARNING: This product contains a chemical known to State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to

TotalBoat Bottom Paint Compatibility Chart

TotalBoat Underdog Bottom Paint Technical Data

Underdog Bottom Paint Red SDS

Underdog Bottom Paint Blue SDS

Underdog Bottom Paint Black SDS


You may also like…