[Coral-List] Suitable underwater materials for interpretive trail

Ulf Erlingsson ceo at lindorm.com
Mon Nov 29 09:22:10 EST 2010


To resist bioaccumulation it has to be toxic. The only clear  
antifouling paint that works is Clear25 or similar, using TBT. As you  
know they are prohibited since many years.

When I invented the SediMeter (http://lindorm.com) Clear25 was legal,  
now it is not, so I have had to develop a cleaner instead since the  
sensor consists of transparent plastic.

You can use polycarbonate, but you must clean it regularly, such as  
at least once a week in Key West. Probably once every 2 days in the  
summer. Unless you can deploy some wave-activated cleaner, which may  
be a possibility. Strips of clear plastic hanging so that they are  
moved over the surface by the waves might work - but they might also  
be a nuisance for the reader of the sign.

Ulf Erlingsson

On 2010-11-27, at 22:51, Rudy Bonn wrote:

> Dear Listers:  Does anyone have any experience with putting  
> together interpretive materials for use underwater, close to shore,  
> 8' max depth, salinty constant.  Im looking for something that will  
> resist erosion to a point and that will also resist  
> bioaccumulation, and there will be regular maintenance.  I was  
> thinking fiberglass sheets, embedded in some sort of clear matrix,  
> or plastic, or something. Folks nust have the ability to read the  
> signage, any suggestions?  Nothing toxic!  Thanks
> Ill even put one together about the pros and cons of ACG, or is it  
> climate alteration now?  I get confused!
> Rudy S Bonn
> Director of Marine Projects
> Reef Relief
> 631 Greene Street
> Key West, FL 33040
> 305-294-3100
> _______________________________________________
> Coral-List mailing list
> Coral-List at coral.aoml.noaa.gov
> http://coral.aoml.noaa.gov/mailman/listinfo/coral-list

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