Tank Re-sealing.

[JoeDaPro]

Well i bought a second hand Tank, all the sealing Bar one side is pretty good, but i want to re seal the section on the side looking a bit gritty.

I bought a tube of seal for the tank, but how do i reseal it, do i have to Take ALL the Seal from that corner just to re seal a 15 cm patch? including the seal in the gap holding the two sheets together? or can i just score out the section were the two parts meet.

If i can just score the section out, and re seal it how will the cured and fresh seal do meeting horizontally, will this be a problem?

Its a 36" tank
18" tall
12" thick
it holds 128 lites, it will be holding 128 liters of salt water.

 

[Danno]

Cut out the part that you don't want with a razor blade and goober over it. Have you ever calked a bathtub? If so it is just the same way. Squeeze a line of sinicone over the edge and smooth it out with your finger. If you're rich they make tools that make perfect looking smooth lines if you want to.

 

[JoeDaPro]

But when i overlap the the old seal with new seal at the top at bottom to fill the gap between the old seal, wont the Seal not stick and just mess up?

 

[Danno]

Cured silicone and new silicone will seal to itself. It wont mess up

 

[JoeDaPro]

Ok Thanks alot

If the tanks water tight, even thought that sides looks a bit moldy, do i really need to re-seal it?

 

[BigC]

Speak to windsoraquatics on this site, he builds tanks for a living.
He'll surely know how to tackle you dilema.
Regards
BigC