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Garmin® has tested Propspeed’s Foulfree™ foul-release coating system and found it to be effective for keeping transducers clean and free from marine growth.

“We are proud to have worked closely with Garmin engineers to ensure compatibility with and maximum performance from their transducers,” said Chris Baird, CEO, Propspeed. “Garmin sonar systems are some of the most popular choices for anglers and we are confident that Foulfree will ensure peak performance throughout the season.”

“Garmin has been at the forefront of sonar technology and innovation for over 10 years,” said Jarrod Seymour, Vice President/Marine Segment Lead, Garmin. “Our CHIRP, DownVü, SideVü transducers and LiveScope sonar systems deliver clarity and target separation unrivaled in the industry. The updated Foulfree product is the best way to keep our transducers free of marine growth and at peak performance.”

The Foulfree application kit now comes with XDprime wipe, an adhesion promoter for any transducer face, providing an especially strong bond to plastic. This new product ensures a greater, long-lasting coating that keeps your transducer in top condition.

Developed from the best foul-release technology on the market and in conjunction with world-leading transducer experts AIRMAR and Garmin, Foulfree is a revolutionary coating designed specifically to protect transducers from marine growth. As transducers provide best results with minimal turbulence over their surface during operation, Foulfree keeps any transducer performing at its peak, and ensures the signal remains clear over time. The Foulfree Clear Coat is a non-toxic topcoat which forms a super slick outer layer that marine growth cannot adhere to, keeping your transducer surface clean and clear. A foul-free transducer equals more clarity, detail and visibility below the waterline.

Propspeed products include Propspeed for running gear and any underwater metals, Foulfree for transducers and Lightspeed for underwater lighting.


  • Auckland, New Zealand
  • Propspeed