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Common FAQs

Product Information

The critical differences in the three different application systems are (1) the way the surfaces are prepared for coating purposes, and most importantly, (2) the cleaning agents found within each kit perform a specific function pertaining to the surface to be coated. Using the correct product and following the correct preparation and application instructions provided is critical to maximize performance across our range of products.
- For protecting any metal surfaces.
- The Propspeed system has everything required to protect underwater metals in the harshest of marine environments.

- For protecting underwater light lenses and housings.
- Lightspeed has been tested to be underwater light safe and will not cloud of fog lenses.

- For protecting transducers; measuring equipment below the waterline.
- Foulfree has been tested and is AIRMAR certified to result in no loss of transducer performance.

We have included all of the required components in each one of our product kits to make it easy for your business to charge out one billable item. E.g. 1 x Foulfree kit has everything you need to complete the job. Simple, easy, and valuable. 

Fouling on the face of transducers can reduce their sensitivity, decreasing bottom-echo returns and fish targets and reducing the detail on the sonar image you receive. Foulfree forms a slick surface marine growth can’t grab onto, keeping your transducer surface clean and clear. 

Foulfree lasts a minimum of 12 months, with an even longer service life in cooler climates.

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

One 15ml kit will coat 1ft2 .

Foulfree requires a minimum of 8 hours to dry before launching. In cold conditions, 40-60°F / 5-13°C, we recommend waiting at least 24 hours before launching.


Our coatings are not effected by extended periods of time out of the water. Foulfree can be applied and then remain out of the water without causing any problems. The coating is UV sensitive when exposed for a long period of time, so we suggest that customers keep the coated surfaces out of direct sunlight. Many customers cover up the coating to also protect it from damage, as it is a soft coating.

One 15ml kit will coat 1ft2 .

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Downloadable Propspeed resources just a click away.

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Safety Sheets &
Technical Documents

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Application Guides

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Coverage Calculator

Get an estimate for how much product you need to coat your underwater assets with the Propspeed® Coverage Calculator™. 

Additionally, if you need any further support or guidance, please contact one of our Sales Managers and they'll be happy to help.