Need advise how to clean mould

[gcollins]

I have never had this happen, and i don't know what caused it, I think I do!
I have moulded bullets for a long time, allways using W.W. ,Now I have got involded in long range Black Powder shooting. I have never used pure lead, I tried pure lead, they were bad! But I tried to shoot them with no luck! So I told to add tin, 1/20, 1/30, so I did, that solved the problem, and I have good bullets.
But I had to quit pouring because my mould, got real nasty brown crust inside nd out, and it was causing the mould not to close perfect. I have soaked in gasoline for 24 hours, scrubed it with brass brush not muck luck! The only thing I can think of was, I re melted the bad bullets, I melted the lube out of the grooves.
I would be very great full, if some one can tell me how to clean this mess up
This is a Lee 2 cavity mould 500gr

Thanks Greg

[docone31]

I would get some brake cleaner, or carb cleaner, spray the dickens out of the mold. Let it soak in.
My technique is to then light the mold.
From that point, I crank up my pot and stick the mold on the melt untill the lead does not stick to the mold. I then cast.
I end up tossing the first few back, but, from that point, they come out goo.
That is a large casting. It is going to keep the mold hot.
It really sounds like you have lube browned onto the mold. I get that once in a while. Rather than lube, it is oil for me.
It will cook out.

[mooman76]

I would try lamenting!

[BUFFALOW RED]

i use brake clean on my lee mold

[gcollins]

Thanks Guys, I am great full, i thought gasoline would remove anything, but I am wrong! I have some Carb cleaner, i will try that, and then if that doesn't work i will move to the next mentioned!
Thanks so much!
Greg

[454PB]

I'm guessing the "nasty brown crust" was caused by lubing the mould. No matter how careful you are, that lube creeps into the cavities and causes the problems you're having. I quit lubing my Lee moulds years ago.

Brake cleaner and a stiff tooth brush should clean it up.

[gcollins]

I hand a can of carb cleaner, and i have worked on that mould of and on all day, and I still is not clean enough! It does close all the way now! Shouldn't leave any mould lines. And there won't be any lubeing the mould any more!
Thanks Guys!
Greg

[cabezaverde]

Any tips on cleaning the lead off of the faces of aluminum Lee blocks?

[John Boy]

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