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Product Details

Neptune HRT is a new water-based antifouling paint that replaces Pettit Neptune 5. User-friendly low VOC formula features soap and water cleanup and no strong solvent smell, making Neptune HRT ideal for marinas under restrictions.

Hybrid Reactive Technology formula utilizes high-density biocide and film modifiers for better color consistency, less yearly build-up (less sanding), and lower finish weight, while providing a smoother finish than traditional paints. Hybrid formula combines the durability of a hard finish with the antifouling protection of an ablative. 25% Copper content ensures reliable performance.

For use on properly prepared fiberglass, wood, and steel hulls. Do not use on aluminum. Neptune HRT is compatible over almost all other antifouling paints.

Available in Quarts and Gallons in Black, Blue, Red, or Green.

Tech Specs
Finish: Flat
Solids by Volume: 60%
Solids by Weight: 40%
Coverage: 500 ft2 /gal.
VOC: 145 grams/liter (1.21 pounds/gallon)
Biocide: Cuprous Oxide 25.25%
Flash Point: 200℉
Application Method: Brush, roller, airless or conventional spray
Maximum Roller Thickness: 3/16"
Number of Coats: 1 minimum per season with additional coat at waterline
Wet Film Thickness: 3.75 mils
Dry Film Thickness: 1.5 mils
Application Temp: 50℉ Min. / 90℉Max.
Thinner: Water
Dry Time To Touch To Recoat To Launch
90℉15 mins1-1/2 hrs6 hrs
70℉30 mins3 hrs10 hrs
50℉1 hr6 hrs16 hrs
Info & Guides
Pettit Neptune HRT is a hybrid antifouling paint that provides the toughness of a hard paint with the protection against all types of fouling you get from a seasonal ablative. It can be applied over all previously painted surfaces, and resists buildup after repeated applications.

This cost-effective water based paint is easy to apply and requires no sanding between coats, saving you time. Unlimited dry time to launch means you can paint today and launch whenever you want. You can even haul and relaunch without losing effectiveness. Eco-friendly Neptune HRT has no harsh solvent odors, so you can paint indoors, and cleanup is easy with soap and water.

Technical Information

Neptune HRT Features:

  • Water-based antifouling paint with 25% cuprous oxide
  • Smooth, durable, self polishing hybrid formula effective on both power and sailboats
  • Low VOC means no nasty solvent odors or fumes; cleans up with soap and water
  • No sanding between coats required - saves time and money
  • Haul and relaunch without re-painting
  • Compatible over most bottom paints
  • Replaces Pettit Neptune 5

Reviews for Pettit Neptune HRT Water-Based Antifouling Paint

3 of 3 Reviews

June 4, 2021

3 Rd you're using the same product
By Catsailor from Erie pa

Verified Purchase

I cleaned the boat last year when I took it out I had no sanding to do this year simply wipe clean reapply and back in the water great stuff

Bottom Line Yes, I would recommend to a friend

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April 15, 2020

I would by this product again.
By Rt from Rhode Island

Verified Purchase

Touched bottom of my boat before going back in the water.

Bottom Line Yes, I would recommend to a friend

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May 7, 2019

Petit Protection ans water clean up.
By Helifrancis from New York

Verified Purchase

a paint to help save the environment

Bottom Line Yes, I would recommend to a friend

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