"Copper Pro SCX was the ONLY product rated "EXCELLENT" in the high copper ablative category, and beat Interlux Micron Extra, Micron 66, Micron CSC, and beat Pettit Ultima Pro, Ultima SR, and beat Seahawk Biocop TF, Cukote, Cukote Biocide Plus & Islands 77, and West Marine PCA & CPP hands down." - March, 2009 - Practical Sailor. COPPER PRO SCX 67 - SLIME CONTROL XTRA ABLATIVE COPOLYMER ADVANCED TECHNOLOGY MULTI-SEASON PROTECTION Rated "EXCELLENT" by Powerboat Reports (March 2005 - Testing Challenge). Our best product - loaded with 67% copper, ablative with SCX - Slime Control Xtra. Rated "BEST BUY" - Compares to Interlux Ultra or Pettit Trinidad SR at big savings! Covers 300 - 400 square feet / gallon; 2 coats needed for proper application - 3rd coat recommended on the waterline To figure out the amount of paint required: Length x Beam x .85 x 2 (2 coats)= Total / 300 feet = Gallonage Required MULTI-SEASON PROTECTION - average boater (50 - 100 hours) will get anti-fouling protection of 2-3 years Self Polishing Boosted Ablative added SCX - SLIME CONTROL XTRA Multi Season Relaunch Without Painting Eliminates Heavy Sanding Tremendous Protection for Extreme Fouling Conditions Copper Pro SCX 67 provides extended antifouling protection against barnacles, algae and hydroids in salt and fresh water on boat bottoms only. SCX - SLIME CONTROL XTRA - acts like a sunscreen to prevent slime and algae. Its ablative copolymer base renders a smooth finish with durability and abrasion resistance. Copper Pro SCX 67 releases biocide by the constant exposure of new paint film to the water. Copper Pro SCX 67 has universal application over all types of properly prepared bottom paints (except aluminum). For use on fast fiberglass boats, as well as wood and steel hulls, extended protection is possible, since performance is directly proportional to the amount of paint applied.