Teflon antifouling

[marcochi76]

Hello
what is your opinion regarding Teflon antifouling on a sport cruiser?

My boat came with International VC17 antifouling, which is Teflon based.
Last year, by error, they put on a standard antifouling that was not compatible with the vc17
I thus have to polish it to remove it entirely.

Wondering what to apply then:
Should I go back to the Teflon one or use a standard one?
Any experience with Teflon?
Is it really better than a standard one?

Attached a pic of my boat with VC17 applied and being cleaned after one season in the water.

Thanks

 

[Portofino]

I used it once about 5 y ago and think it made a difference a small difference in speed when the boat was so to speak yard fresh .
That advantage disappeared as the season progressed.

The only reason I used it once was because it was 1/2 price literally piled up high on crates near the check out @ Cabesto in La Napoule .Was there own brand with Teflon added .For some reason they had vast quantities of the stuff .

The deal was never repeated and subsequent yrs I just used the yard std AF hard for planning boats .
Did not notice any incompatibility issues either way round .

As far as AF effective ness re growth inhibition no difference ,

If it’s any consolation here are some pics of my boats lifted in May used seasonally .

Yard AF this . All DIY except the metal work that was then just left = hence the state But the hulls not bad ?



Water lines bad after being stood from Oct to April . But the rest of the hull isn’t that bad .
It was all professionally redone inc anodes etc .

Your issue its not clear might be simply a incompatibility thing brand vis brand ? As opposed to the Teflon per se .

I did one yr Spring 19 used a AF recommend on here which was supposed to last 2 yrs ( think JFM recommend it something “80 “) .Anyhow it failed in the bow areas around the disruption line …just washed off .Moved from the SoF later that summer to Liguria Covid limited the boats maintenance as the yard was closed etc .It supposed to luckily because of covid shut downs etc last 2 yrs it didn’t.
So I got a diver to underwater blast it off with a underwater jet washer ….iirc 2 x that season .Disappointed really .
Then went back to std hard for planning boats applied professionally, No issues not sure which brand they use .

The point of the pics is to give you a SoF yard stick of they look like after a year esp if left over the winter .

 

[Hot Property]

If you want slippery then Silic One works for me. Fast planing hulls keep it clean, 3 years use with just minor touch up on annual lift and hold. No good for slow boats, I gained 1.5 knots.

New rib has been coated and performance regarding fouling just as good. Don't use it on props though...

 

[marcochi76]

If you want slippery then Silic One works for me. Fast planing hulls keep it clean, 3 years use with just minor touch up on annual lift and hold. No good for slow boats, I gained 1.5 knots.

New rib has been coated and performance regarding fouling just as good. Don't use it on props though...

Hello Hot Property,
it seems that the process of applying Silic One is very complex. (remove all previous anti foul,....)
what's your experience?

 

[Hot Property]

Incorrect!

Existing AF needs to be sound.

1 coat of 2 pack primer
1 coat of " tie coat"
2 coats Silic One

Temperatures are important, I did mine on a sunny dry day.

It's very slippery when wet which is the whole idea. When loading onto a trailer or boatyard recovery dolly make sure you tie a bowline on as you don't want your pride and joy slipping into the concrete.

I had a few nicks after a year, caused by logs and debris rubbing the waterline. Easy to touch up though. I only touched up the damaged areas rather than a complete overcoat as they recommend..... Worked for me.

Lasted 3 years and would have done more but I sold her.

Brand new rib now treated with same results.

Not good on slow boats. 20 knots plus is optimal.

 

[Portofino]

With AF it’s always best to enquire what works best locally.Ie what the locals and the pro s use .The OP s in the Sof the same area as the pics I posted.
Not entirely sure what Solent ( massive tidal ) is applicable.But as always open to education .