Fuel tank bedding

[doug7488]

I'm sure it's been discussed previously, but what is the preferred bedding for an aluminum fuel tank?
I remember reading not to set it on neoprene? Or was that some other type of rubber?
That the rubbber would promote electrolysis.
This is not for my SeaCraft but my Chris-Craft - twin 150 gallon tanks.
Thanks for any insight!

[Old'sCool]

Neoprene. Pascoe (I think) has this well documented.

[pelican]

first - solvent clean,scuff sand,solvent clean again - chemical etch prime,followed by either interprotect 2000 or coal tar epoxy,to the correct thickness...

setting tanks - starboard strips,these will work the best,setting the tank up,off any flat surface,allowing moisture under it to pass.

rubber,neoprene - these will actually trap water/moisture.

[IslandMarineGroup]

Originally Posted by pelican

setting tanks - starboard strips,these will work the best,setting the tank up,off any flat surface,allowing moisture under it to pass.

Try to determine where the baffles are and support the tank under the baffles and at the tank ends. You can usually see the weld marks of the baffles on the outside of the tank.

Island Marine Group, LLC
www.islandmarinegroup.com

[doug7488]

Thanks to all replies!
Lots of good info
Thanks again

[flyingfrizzle]

If you haven't had the tank built or coated yet weld some 1"x1" or 1 1/2" angle to the top of the tanks so you can screw them to blocking glassed to the side of the stingers for support. That is if it will work out in the chris-craft stringer layout where you are placing them.

[doug7488]

thanks Friz! -
the tanks just sit on top of the stringers (4"x 8" )- above all / under the deck
they were originally just "corralled in" with 2x4's
i'm going to have brackets welded along to bottom to lag into the stringers
thanks!