Epoxy sticks

[Steven Koch]

 When using epoxy under water, "Marine" epoxy is intended to be applied in the air and only used in the sea after it has hardened. This type of epoxy often shows toxic effects on living corals if it comes in contact with the itssues before it  hardens.

We have found an "Underwater" marine epoxy manufactured in the Philippines which is VERY sticky underwater, holds very well with only small amounts and has shown few toxic effects. The down side is that it is so sticky that if you are not carefull you will mess up your diving gear.

Steven Koch 

ORCA INC. Cebu Philippines

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--------- Forwarded Message ---------

DATE: Mon, 26 Feb 2001 09:26:37
From: David Obura <dobura at africaonline.co.ke>
To: coral-list at coral.aoml.noaa.gov

This does go on!!!  In reply to Bruce ...

I've used expoxy sticks with great success, the version I have access to
is a two-stick one called 'Pratley Quickset Putty', from South Africa. 
It has the same mixing/setting characteristics as others have mentiond
(has to be hand-mixed in air, is best used UW 10-20 minutes after
initial mixing). I've had probably > 80% setting success (compared to
50%) with cement mixes of various types (including lime), and it sets so
strongly that branching corals often break at the top edge of the putty
rather than being pulled off, and seems to remain for several years.  It
does sometimes, though not frequently, seem to cause toxic reactions to
tissue in contact with it when setting,but this is obvious within a
week.  It's best though for small fragments as large colonies need a lot
(so expensive).

I'd recommend it as more reliable than cement, though perhaps more
suited to fixing sample corals for experiments rather than
'rehabilitation' per se. 

all best,

David
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+++++++++++++++++++++++++++++++++++++++

David Obura
CORDIO-East Africa
P.O.BOX 10135 Bamburi, Mombasa, Kenya
Tel/fax: +254-11-486473; Home: 474582; 0733-625888
Email: dobura at africaonline.co.ke
Web: http://www.cordio.org


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