How do you remove rust?

[Mach_Cat]

I was just loaned some ideal molds, (long term loan) to use.
They have some light rust in the cavities. what is the correct way to clean these up?
These are 4 cavity molds.

Thanks Ed

[Dusty Bannister]

http://castboolits.gunloads.com/show...ove+rust+molds

[M-Tecs]

I highly recommend Evapo-Rust. http://www.evapo-rust.com/product-info/

http://castboolits.gunloads.com/show...ght=evapo+rust

http://castboolits.gunloads.com/show...ght=Evapo-Rust

http://castboolits.gunloads.com/show...ght=Evapo-Rust

http://castboolits.gunloads.com/show...ght=Evapo-Rust

[yondering]

I've had good results with diluted CLR in an ultrasonic cleaner.

Be aware that any rust remover will remove bluing as well.

[Daddyfixit]

Might give this a try.
http://schoepp.hylands.net/electrolyticrust.html

[zuke]

Each half in Stainless media for 7 hour's.

[Stephen Cohen]

I have left metal objects to soak in water and molasses, Gall of water to half a cup of molasses should do it. Don't forget to soak metal in water and bi carb soda after rinsing off molasses this kills the acids then dry and oil

[rollmyown]

If you try the molasses method check often. Things can get very bad if left too long.

[Stephen Cohen]

If you try the molasses method check often. Things can get very bad if left too long.

I was told that as well, but I have cleaned so many old war relics that were dug up and as yet have had no problems, but I do as you say and check often.