Propeller antifouling - B331

[Bluenose]

Hi there,

I have never put anything on my prop. But this year I have "wall to wall" white barnacles. You don't have to be a certified propeller engineer to know that this cannot be good for thrust.

My boat is in salt water.

Any suggestions?

Thanks!

 

[Michael Davis]

I have used anti fouling on my prop the last few years. Seems to work well here on the west coast.

 

[kappykaplan]

Barnacle Barrier works well. It's a spray-on paint.

 

[justsomeguy]

Haul out, clean and spray on Pettit Barnacle Barrier.

 

[Bluenose]

Thanks - nothing on top of Barnacle Barrier?

 

[Michael Davis]

No, just that pretty grey. Works well

 

[fstbttms]

Propspeed is the best stuff there is:

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

 

[Rick486]

Propspeed is the best stuff there is:

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

I checked it out on Defender. Looks like a decimal point in the wrong place on the price....

 

[fstbttms]

I checked it out on Defender. Looks like a decimal point in the wrong place on the price....

You can have cheap or you can have good. You can't have both.

 

[arf145]

Barnacle Barrier has worked pretty well for me most years--but not all. This year it has worked well...it was only very recently that I detected some imbalance, though still getting good thrust.

 

[Ralph Johnstone]

I have never put anything on my prop. But this year I have "wall to wall" white barnacles

Out here on the "Wet Coast" barnacles seem to go in cycles. As a rule, not to bad with just one or two sticking. Several years ago, I had a load of barnacles the size and shape of a basketball. It was so bad that the boat had near to no power to get over to the yard for a haul out and left great clouds of black smoke in out trail. Ever since, just a few every year.

I can just feel the next attack coming !

 

[Bluenose]

Interesting!

 

[justsomeguy]

It was so bad that the boat had near to no power to get over to the yard for a haul out and left great clouds of black smoke

Yah, this happened to me a few weeks ago when I put out of the marina to do a bottom cleaning.
Was followed by a stinkpotter who (rightfully) noted the black stuff emanating from my exhaust.
How embarrassing!
The prop was completely encrusted, and my hands still bear the scars from that scraping job.

 

[dmax]

Spray your prop and shaft with cold galvanizing spray paint - I (and many others) do this and there are no barnicles at haulout. $6 at Home Depot:

Rust-Oleum Professional 20 oz. Flat Gray Cold Galvanizing Compound Spray 7585838 - The Home Depot

Apply this Flat Gray Cold Galvanizing Compound from Rust-Oleum Professional on your interior surfaces to get a galvanized finish.

www.homedepot.com

 

[Bluenose]

Problem with prop speed is that it is not available in my area - Practical Sailor recommends professional installation.

 

[Benny17441]

Take it to a prop shop where they will clean it, repair any nicks, true the pitch and paint it with a hard antifoul paint. For at least the first time it will be worth it to let the pros do it.