Steve W. wrote:
axolotl wrote:
On 1/8/2011 4:34 PM, Steve W. wrote:
Is anyone aware of a reliable method
of tank repair in place?
Sure. Weld in repair panels OR CLEAN the interior of the tanks very well
and epoxy coat them inside. You can buy fuel liner epoxy at many marine
stores.

Steve,

My concern would be access. In most of these installations, one could
not get to the bottom or back of the tank to weld it, and the tank
coatings I have found have directions to rotate the tank (like
"sloshing" an aircraft tank) to coat the interior. Are you aware of any
coatings that can be "painted" through an access port?



Google Proseal



Thanks,

Kevin

Most of the epoxy coatings can be thinned so you can spray them. Just
like spraying a two part paint. Just be 100% sure to clean the gun very
well before the pot life expires.

Depending on the size of the access port you might be able to get in
there with a chopper gun like the ones used to lay up the fiberglass on
boats. With that the resin would have the fibers to bind it and
reinforce the repair. All depends on how much access you have.




Not really true that MOST epoxies can be thinned for spraying.
And those that can, thinning reduces their physical properties
proportionally.

Epoxy, in the cured state, is hard and brittle.
The thing that gives it strength and flexibility is the matrix
that it is used with.

By itself it's pretty useless for this kind of repair job.

--

Richard Lamb
email me:
web site: www.home.earthlink.net/~cavelamb