hi guys ,some time ago there were a couple of contributers to this subject who were using cabots cfp with hardener on the props of their boat. what was the long term effect ,Is it as good as prop speed,does it last 12 months etc etc. thanks in advance.

The only way you are going to know for sure is to give it a try.

I have used Cabot's CFP on my hardwood timber floors. In that application I highly recommend it. It is tougher than my dog's nails when she tries to get traction to chase a cat.

When cured, the stuff is tougher than nails. Someone put a tip about it as being as effective as prop speed some time ago. So like I say, give it a go and let us know what your results are.

Hi cisco ,I have purchased the cfp and will put it on the prop next week when she goes up for the annual rub a dub scrub, will keep yous informed in due course.

I had a prop replacement Oct 2014, as it was nice and bright and shiny I had it Propspeeded (if that's a proper word) I was told it would last two years, some have told me five years. I like the idea of knowing that the prop cleans itself as it rotates, but I won't really know its worth until next slip, later this year. Interested in how your Cabots experiment measures up.

I will be interested to see the results theace but of course it is going to take a while to find out if is effective.

If you dive on it in three months time and it is clean I guess it works. I forget who posted the tip originally but he seemed quite definite about it. Cheers.

I've been using propspeed for a few years. Provided you run the prop at least every couple of weeks it does stay clean. Leave it for more than a month, or only running it once every 2-3 weeks over a period of time, and growth will occur that doesn't come off by running it. Usually it can be wiped off.
The stuff does wear off. Mine usually needs redoing every 100 hours or so.

Okay MorningBird. I thought this propspeed stuff was the be all and end all for prop fouling, but it appears not so. I'm finding a bit of weed growing on the hull at my mooring (Pittwater) and I do endeavour to motor once a week, so it will be interesting to take a look at the prop next haul out.

An update. I just got back from the boat (oil and filter change, I hate doing this on my boat as the filter always empties itself as it is unscrewed) and I went for a dive on a glorious Pittwater day.

I have done 65 hours on the motor since the last slip and propspeed in October. The propspeed was, I think, $120. Since October there have been quite a few times where the prop hasn't been run for two weeks or more, and then sometimes for no more than a few seconds on the mooring. This is the first wipe down.

Before I took her for a run there was slight growth on the prop, mainly on the hub but one or two weeds on the blades. After a 5 minute run to warm her up for the oil change there was almost nothing on the blades but a very small amount still on the hub.

A wipe over with a sponge and the blades are like new. I could wipe the hub off too but the propspeed has been worn thin where the growth was so a wipe down every month or so will be in order for the hub. The gears are still clean.

All in all that is pretty good. It should last a couple of years and 100-150 hours with an occasional wipe down. A prop with anti foul only would be like the Barrier Reef by now.

Where in Pittwater are you samsturdy?

Yeah, I also use propspeed but I slip my boat every 12 months and redo the propspeed at the same time. Last year I probably did about 300hrs between haul-outs and the propspeed was still in good nick I normally clean the old propspeed off with a wire buff (angle grinder with wire wheel) and the hand sand with 80 grit to give the new propspeed something to key into. (The wire buff cleans well but unfortunately also polishes). The guys in the slip yard put the propspeed on to ensure it is done correctly. It not hard to do but its one way the supplier has of making sure it's done correctly and there are no come backs. It cost me $100 + labour which wouldn't have been much since I did all the prep work.

I have never cleaned the prop while in the water, but do use the boat regularly. I have never seen any of the propspeed wear away enough to expose bare metal. I have thought about leaving it on for a couple of years but at only $100 buck (1/10 of a 'boat buck') it gives me peace of mind.

Cheers

Hi MorningBird. I'm halfway down Maccarrs Creek. Apparently growth can be related to the amount of rain we get as the run off sits on top of the salt water. No rain equals more salt water equals more growth. Make sense??. I reckon it must be the best mooring spot in the entire universe, totally sheltered but in the Winter months the sun goes down a little early over the hill and it gets a bit chilly,but hey..............

Crusoe. You have a lovely looking bottom and you certainly seem to have plenty of zinc hanging around. I wanted to use a prop zinc but someone told me they thought I didn't have enough shaft sticking out of the prop.......pity.

If you are near Browns Bay you may be near my sisters Valiant 40 'Mischief'. She is currently down at Cammeray temporarily but has a mooring on the west side of the creek.
I believe the run off in the creek does provide nutrients and growth is more rapid there than elsewhere. She was in Salt Pan Cove before moving down there a few years ago.
I recommend propspeed, I reckon it is a good product.

Yes, I am moored just on the southern side of Browns Bay, I know Mischief. Good to make your aquaintance. Missus and I are Just learning to sail so hopefully we'll see you out on Pittwater one day.

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MorningBird said..
If you are near Browns Bay you may be near my sisters Valiant 40 'Mischief'. She is currently down at Cammeray temporarily but has a mooring on the west side of the creek.
I believe the run off in the creek does provide nutrients and growth is more rapid there than elsewhere. She was in Salt Pan Cove before moving down there a few years ago.
I recommend propspeed, I reckon it is a good product.

Your sister owns a Valiant 40! I'm impressed.

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Ramona said..

MorningBird said..
If you are near Browns Bay you may be near my sisters Valiant 40 'Mischief'. She is currently down at Cammeray temporarily but has a mooring on the west side of the creek.
I believe the run off in the creek does provide nutrients and growth is more rapid there than elsewhere. She was in Salt Pan Cove before moving down there a few years ago.
I recommend propspeed, I reckon it is a good product.

Your sister owns a Valiant 40! I'm impressed.

This is your fault Romona. The old joke just came to mind after your post.

Wife Wanted, must be able to dig, clean, cook worms and clean fish. Must have own boat with motor. Please send photograph of boat.

Why are you impressed? What does your sister own?
She bought it about 8 years ago and we sailed it down from Bundy. Lovely boat, solid and sea kindly. Now set up for long term cruising in preparation for them heading off later this year.

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MorningBird said..
She bought it about 8 years ago and we sailed it down from Bundy. Lovely boat, solid and sea kindly. Now set up for long term cruising in preparation for them heading off later this year.

Is your sisters boat one of the Flightcraft ones and is the laminate in any way affected by the non osmotic Hetron blistering that has affected many of the Valiant 40 boats that were built be Flightcraft?

No, hers is hull number 15 made in 1975, one of the first 20 built before they adopted the 'fire retardant' resin.

Of interest though, last I checked none of the 'blister boats' have sunk or not been able to sail because of it. I understand it is mainly cosmetic.

You are correct it is just cosmetic, none of the boats has any structural defects apart from the dinner plate sized blisters caused by the Hetron resin. Flightcraft at the time claimed it was the resin reacting with the binder on the cloth.

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samsturdy said..
Crusoe. You have a lovely looking bottom and you certainly seem to have plenty of zinc hanging around. I wanted to use a prop zinc but someone told me they thought I didn't have enough shaft sticking out of the prop.......pity.

Steel hulls Samsturdy, only rust on the inside and above the water line as long as you keep the anodes fitted. The anode on my prop has been there for years and shows bugger all signs if degradation. The Anode on the shaft was slightly pitted (still about 95% intact) so I changed it out. (They're cheap). The other anode on the hull is the original from when I purchased the boat about 8 years ago. My 4 skin fittings (no pun intended) which are 316 stainless steel nipples (10mm wall) welded into the mild steel hull, each have an anode mounted beside them.

Each boat is different, but I would guess that as long as you were able to put an anode on the shaft you should be okay. Cheers

Most boats have too many anodes. If you have an anode that is not working {disappearing} I would investigate. I have one shaft anode on a 30 foot 'glass hull.

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Ramona said..
Most boats have too many anodes. If you have an anode that is not working {disappearing} I would investigate. I have one shaft anode on a 30 foot 'glass hull.

Ramona would you say I would have enough clearance to fit a prop shaft anode in there My prop was pitted a little when i lifted her out last

She due to come out at easter again

If that's all shaft I can see ahead of the prop that's is plenty of room.

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Ramona said..
If that's all shaft I can see ahead of the prop that's is plenty of room.

Mine has about the same shaft showing so you should be right to put one on.

Thanks I add it to my Dam list dam boat dollars