[C38] Bottom paint

[Don Strong]

Phil.
    Wasington's prohibition against in-water scrubbing is interesting. 
Last time around we got 4 years from our bottom job in San Francisco Bay 
with Trinidad regular and twice annual diver gentle scrub. It would be 
interesting to learn the rationale against in-water scrubbing. If it 
leads to more frequent bottom jobs, it could lead to more pollution 
unless every site where a bottom job is done is an advanced catchment 
with well regulated toxics removal and disposal. Even then, more 
frequent bottom jobs means more toxic paint in land fills.
    The slime is an issue, indeed. Fast sailing for long periods does 
reduce it.
regards, Don

Rich West wrote:
> I've been really happy with Trinidad SR on my boat in Los Angeles.  It 
> is much better at reducing slime than the plain old Trinidad I had on 
> before and it's been lasting very well.
>  
> Are you sure it's a hard paint?  When I touch it with a rag, clouds of 
> red come off into the water.
>  
> Rich West
> Legacy, #360
>
> ------------------------------------------------------------------------
> *From:* listserve-bounces at catalina38.org 
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of 
> *eyriepg at comcast.net
> *Sent:* Wednesday, February 28, 2007 7:59 PM
> *To:* Catalina 38 list
> *Subject:* [C38] Bottom paint
>
> I have been using Micron CSC ablative copolymer paint for the last 9 
> years.  It works well at keeping the barnacles for several years off 
> but does little to reduce the speed robbing slime.  I did a test 
> stripe on my rudder about 4 years ago with the same type of paint with 
> a biocide and could see little difference.  It is illegal in WA to 
> scrub the bottom in the water and a haulout and pressure wash 
> are costly.  I am thinking about changing to Trinidad SR hard paint 
> which is legal to scrub.  Marine growth is slow here in our cold 
> water.  How effective is it in reducing slime?  Is there a better 
> alternative?  There have been several articles in sailing magazines 
> lately about new bottom paints, but I value your experience more.
>  
> Since I will have to remove all of the ablative paint to use the 
> modified epoxy or any other non ablative paint, I want to be sure that 
> it is the way to go.
>  
> Phil Gay
> C38 049 Que Linda
> Everett, WA
> ------------------------------------------------------------------------
>
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-- 
Donald R. Strong
Professor
Section of Evolution and Ecology
University of California Davis
95616
530 752 7886

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