Mike k
Active member
Hi
what does the panel think is the optimum frequency for hull antifouling?
Thanks in anticipation
Mike
what does the panel think is the optimum frequency for hull antifouling?
Thanks in anticipation
Mike
Antifoul frequency
- Thread starter Mike k
- Start date
gravygraham
Active member
Glad you've put in this post - I was thinking the same. I've an uncle with a Merry Fisher on Lake Geneva and he only anti-fouls every other year. Maybe that's a freshwater thing, I dunno.
Momac
Well-known member
Our boat is on fresh water - with very occasional visits to salty water.
Bought the boat in spring 2008. The antifoul was not freshly applied at that time but looked okay.
Any very light fouling that may occasionally appear at the water line brushes off easily. The bottom gets a power wash once a year when lifted for service.
Antifoul re-done in autumn 2011.
Bought the boat in spring 2008. The antifoul was not freshly applied at that time but looked okay.
Any very light fouling that may occasionally appear at the water line brushes off easily. The bottom gets a power wash once a year when lifted for service.
Antifoul re-done in autumn 2011.
SailorBill
New member
About 15 years with Coppercoat 
Bbroomlea
Member
Ours was last done in October 2008 and has had an annual power wash. Its due out of the water this month and will be renewing this year as its getting thin in places.
We dont get to do too many miles, mostly not too fast either on Windermere which probably helps.
We dont get to do too many miles, mostly not too fast either on Windermere which probably helps.
rafiki_
Well-known member
Every 2 seasons for us. Rafiki "parked" in the fresh(ish) R Severn, with occassional excursions into salt water.
omega2
Active member
depends where you are, salt or fresh, we are bi-annual in the green stuff at Bradwell on sea Essex, and use Jotun sea queen, which we have found is the best for our area.
DAKA
Well-known member
Mainly Solent use with occasional South coast/France/CI cruise........
Cruiser Uno (soft and self erodes).
Designed for use up to 25 knots , once a month I do about 1 nm at high speed in order to deliberately leave a clean surface.
One coat lasts two years, the fouling increases towards the end of 18-22 months, under the cruiser uno is one coat of hard antifoul just in case the uno wears off completely.
Main reason I do this is to ensure the antifoul does not build up as it does with hard antifouls, once it builds up it starts to crack off leaving a rough surface and you then have to remove the hard antifoul.
Cruiser Uno (soft and self erodes).
Designed for use up to 25 knots , once a month I do about 1 nm at high speed in order to deliberately leave a clean surface.
One coat lasts two years, the fouling increases towards the end of 18-22 months, under the cruiser uno is one coat of hard antifoul just in case the uno wears off completely.
Main reason I do this is to ensure the antifoul does not build up as it does with hard antifouls, once it builds up it starts to crack off leaving a rough surface and you then have to remove the hard antifoul.
Mike k
Active member
I am in sea water- is that green? Am rather hoping once every two years may come back as the answer- but am waiting!
Scubadoo
Well-known member
Out of interest, what speed do you normally cruise at. Often thought about using Cruiser Uno as I tend to cruise at 20knots, but wondered if it would not last the season. Currently using an eroding type at the moment that is rated to 35knots, which seems to work (Premier One).
DAKA
Well-known member
depends on conditions but 24 is normal.
It has to be flat calm to increase cruising above that for any distance.
The faster it erodes the better, I really dont want anything left on by the time I lift out.
( I have a cowes sealift scrub at 14-15 months in order to monitor)
Elessar
Well-known member
every 15-20 years.
gjgm
Active member
Too many variables.
Success seems very related to boat use and location, never mind the choice of a/f.
If one coat, I reckon annually,if no lift out and scrub.
Other way to look at it is the cost of getting it wrong. It is alot cheaper to do it annually than have to lift out and scrub or lift out and do it mid season, never mind the fuel bill increase. £75-100 a tin.. not the biggest cost of the year.