[TheForge] repair of a structural foam stock/utility tank.

[Terry L. Ridder]

hello;

after reading numerous web sites on repairing
boat hulls and fiberglass underground storage
tanks i have gleaned the following information.

anything below water/liquid line use epoxy resin.
keeping water out is much easier than keeping a
liquid in. ( boat hull vs. fiberglass storage tank )
a boat hull is normally under compression forces.
a fiberglass storage tank is under tension/expansion
forces. 

this 300 gallon stock/utility tank is going to need
some "mechnical" reinforcement. possible reinforcement
suggestions are:

military surplus nylon webbing tow strap cinched
around the top on the outside of the tank.
1/4 inch aircraft cable and turnbuckle around
the top on the outside.
4 inches wide stainless steel sheet metal and
rubber gasket. cover with several layers of
fiberglass cloth and epoxy resin. final layer
of geocel brushable sealer.

ascii picture:

|geo|F|s|r|f|r|s|F|geo|

geo == geocel brushable sealer
F   == fiberglass and epoxy resin
s   == stainless steel sheet metal
r   == rubber gasket
f   == stock/utility tank wall

i am tempted to go with ray's suggestion of
a pool/pond liner and aircraft cable with turnbuckle.
less expensive than epoxy resin.

On Sun, 17 Aug 2003, Paul Hewitt wrote:

paul>
paul> Fiberglass and resin is about the only way,
paul> the tank is made from polyurethane foam,
paul> you might be successful with some spray
paul> foam in a can, but glass and resin is a
paul> sure fire seal. We do allot of boat repair
paul> around here http://www.portorfordoregon.com
paul> and you will see why. most if it is done
paul> with structural polyurethane foam, and
paul> layers of fiberglass, and polyester resin.
paul> 

ray> 
ray> From: ray miller
ray> 
ray> pool liner???
ray> Ray Miller
ray> Cincinnati
ray>

From: terry l. ridder
terrylr>
terrylr> hello;
terrylr>
terrylr> i have a 300 gallon rubbermaid
terrylr> stock/utility tank that i use to derust
terrylr> large objects. it has developed a
terrylr> crack in the sidewall. the
terrylr> stock/utility tank is made out of
terrylr> structural foam. i would like to
terrylr> repair the tank if at all possible.
terrylr> has anyone ever repaired on of these
terrylr> types of stock/utility tank? i would
terrylr> like to hear some ideas about
terrylr> repairing it. i have searched the
terrylr> internet and did not find anything
terrylr> useful.
terrylr>

-- 
Terry L. Ridder ><>