Sand and treat prop/strut with anti fouling?

[skunther]

Boat is hauled out. I am using an orbital sander with 120 grit to clean the prop and strut (is there a better method?).

Is there a best practice to keeping barnacles from growing on the prop and strut? I have seen fairly involved articles on this topic, but am curious what folks’ direct experience is. I don’t plan to haul out for another 3 years.

Currently I am considering purchasing and applying some Pettit Barnacle Barrier.

 

[JamesG161]

applying some Pettit Barnacle Barrier.

Jim..

 

[jviss]

I don't know that I would sand the prop. You might create crevices that could encourage barnacle adhesion; but then, maybe help paint adhesion!

 

[fstbttms]

There is nothing better than Propspeed, IMHO

Propspeed | Propeller Coating | Foul-Release, Not Anti-Foul

Propspeed foul-release coating. Protect your propeller and all underwater metals against marine growth and corrosion. Propeller antifouling.

propspeed.com

 

[Rich Stidger]

Boat is hauled out. I am using an orbital sander with 120 grit to clean the prop and strut (is there a better method?).
Currently I am considering purchasing and applying some Pettit Barnacle Barrier.

Use Rustoleum Cold Galvanize spray. Same stuff as the Pettit Barnacle Barrier except very much less expensive. $10 for 20 oz vs Pettit $30+ for 16oz.

 

[jviss]

Use Rustoleum Cold Galvanize spray. Same stuff as the Pettit Barnacle Barrier except very much less expensive. $10 for 20 oz vs Pettit $30+ for 16oz.



View attachment 214606

What's the precentage of zinc in the Rustoleum product?

 

[fstbttms]

What's the precentage of zinc in the Rustoleum product?

25-50% by weight, according to the SDS

 

[Rich Stidger]

What's the precentage of zinc in the Rustoleum product?

The 16oz can and the 20oz can both say 93% zinc.

 

[fstbttms]

The 16oz can and the 20oz can both say 93% zinc.

No, what it says is that the zinc in the product is 93% pure