Thread: Molasses Bath Trick

There are concentration advice between 4:1 water:molasses to 10:1 the more concentrated the quicker it works (keep the water warm for best results).

Be aware that if you molasses a fuel tank you'll remove the tin/gal coating so will have a tank that will rust above the fuel level.

You could put a tank sealer on the inside immediately you remove the molasses solution.

I'm thinking that I'd even avoid a water rinse and possibly use metho, GP thinners or prepsol to rinse out the molasses, so the water doesn't encourage rusting.

Yes, I've done fuel tanks and other rusty stuff like this.

See my webpage: Getting Rid of Rust





The reason for the half shiny/half rusty look is that I'd just taken it out of the molasses derusting bath where only half was submerged (the now shiny bit). The tank bolted sideways to the chassis - you can see the brackets. The tank is sitting on the lower surface that you can see under the car in the first photo (if that makes sense).

Here is a battery tray I did. In thesecond pic, that rust look is because it is so clean it started to rust after I hosed it off.

Thanks for your advice. I appreciate the need to reseal the tank to prevent it rusting again, any suggestions there? I've heard stories of the "off label" use of a 3M/Scotch brand contact adhesive (? 776) which I've used to coat engine bolts when reassembling a Rover V8 engine. Something with lower viscosity would be better, though. Thanks again, Rob S

POR15

POR-15 Fuel Tank Repair Kit

Inside the tank POR15 as Ron suggested.

If you dip whole tank in a bath, the outside can be prepared and painted like any bare steel items. There are other POR15 products you can use for that also, but the POR15 chassis paint is not UV stabilised so will grey over time unless over coated with a UV stable paint.

There is also Redkote Fuel Tank and Radiator Service - Red-Kote? - Fuel Tank Liner
Easy to install and can also be removed using acetone.

1956 Series 1 with PTO welder (home made)

I have a POR tank liner kit but didn't end up using it. One of the downfalls is once you open the tin the product will go off whereas with Redkote excess can be drained off for use in another tank.


Colin

Molasses does nothing to rust ( I tested it) the only way molasses can remove rust is if the molasses has urea in it.
Chris

Originally Posted by cafe latte

Molasses does nothing to rust ( I tested it) the only way molasses can remove rust is if the molasses has urea in it.
Chris

But it's de-rusted everything I've put into it ?
So are you suggesting that the molasses we purchase for horse feed has urea in it ?


Colin