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Pettit SR21 Antifouling

Regular Price: $69.99
Sale Price:
$54.95 each


Fresh Water Antifouling Speed Coating

Pettit SR-21 Fresh Water Antifouling Speed Coating is an ultra-thin, super slick, low friction film for boat bottoms. It is the ideal racing finish for freshwater or cold saltwater boats. SR-21 combines copper powder and Irgarol, a slime reducing biocide, to produce an effective, thin antifouling film that prevents the attachment of fouling organisms such as barnacles, bryozoa, toredos, zebra mussels, and algae. SR-21 contains two slicking agents PTFE (polytetrafluoroethylene) and Molybdenum Disulfide which reduce surface friction allowing the hull to slide through the water. SR-21 is recommended for use on fiberglass, wood and properly primed steel boats. It is easy to apply and dries in 15 minutes. Color changes upon immersion.


  • Easy to apply.
  • Launch in 15 minutes.
  • Super-slick finish contains moly-disulfide and PTFE for increased speed.
  • Ultra-thin film technology prevents paint buildup.
  • Eliminates sanding between coats.
  • Dual biocide controls hard and soft fouling.
  • 100% compatible with Interlux VC-17
  • Thin-film Solid Lubricant 
  • Freshwater and cold (low-fouling) saltwater 
  • 21% Cuprous oxide 
  • Coverage: 80 sq.ft./qt. kit 
  • Drying Time: To overcoat (5-20min); To launch (30-120min). 
  • Thinner: Pettit 120 Brushing Thinner, Model 249961
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