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Foul-Release Coating for Transducers

See the real picture

Formulated by industry-leading scientists and certified by Airmar for transducers, Foulfree is a clear, foul-release coating for transducers. Fouling on the face of transducers can reduce their sensitivity, bottom-echo returns, and positive fish targets. Foulfree keeps transducers clean and operating at the top of their game for the clearest sonar images possible.

Transducer Safe

Certified by AIRMAR* and developed specifically for transducers to ensure sustained performance.

Propspeed's Foul-Release

Developed from the original foul-release coating’s technology, with the same promise of proven performance experienced by captains and boat owners worldwide.

Easy to Use

The application of Foulfree can be completed in 3 easy steps: 1. Clean - 2. Condition - 3. Apply

Biocide Free

Foul-release, not antifoul. Foul-release coatings use physical means to reduce fouling, creating a surface that’s tough for marine organisms to adhere to.

See the real picture

A foul-free transducer equals more clarity, detail, and visibility below the waterline.

*AIRMAR certifies that the application of Foulfree coating on its transducers results in no loss in transducer performance.

"Propspeed’s proven foul-release coating for propellers made the company a natural match and our top choice to develop a coating that keeps transducers free of fouling. We are excited to bring to market a quality product that helps our customers get optimal performance from their transducers."

Craig Cushman
AIRMAR Technology

Foulfree kit

Product code: FFKIT

Propspeed Foulfree Kit

In the kit:

Foulfree abrasive pad

1 Abrasive pad

The abrasive pad is used to prepare the transducer face and housing for the Foulfree transducer coating. 

Foulfree XDclean wipe

2 XDclean

XDclean is a transducer safe, pre-treatment cleaner. Having a clean transducer is critical to maximise the performance of Foulfree. The XDclean solution comes pre-packaged with a wipe to make cleaning easy.

Foulfree clear coat tube

3 XDprime

XDprime is an adhesion promoter for all transducer faces, providing an especially strong bond to plastic. The XDprime solution comes pre-packaged with a wipe to make conditioning easy.

Clear coat application brush

4 Application brush

A small, high quality brush is included to provide the best result during the application of the Foulfree coating.

Clear coat application brush

5 Clear Coat

This kit contains 15ml of Foulfree Clear Coat, a non-toxic topcoat which forms a super slick outer layer that marine growth cannot adhere to, keeping your transducer performing at its peak. 

Coverage Guide


  • One 15ml kit will coat 1ft2 (0.1 m²)

How to apply?