Alternatives to propspeed.

[Rollorollo]

Cool. What's the active ingredient?

[Oldwheels]

I am not sure. It appears to be similar to a powder coated with very slick finish. Barnacles did not grow but had some growth that would wassh off in a minute or two.

https://matrixcoat.com/mussel-buster/

[fstbttms]

Originally Posted by Rollorollo

Cool. What's the active ingredient?

There is no "active ingredient." It is a non-toxic foul release coating.