I’m looking for the best way to clean some of my recent scrap buy find’s. I’ve used flitz and denatured alcohol so far. Thanks for any advice. Eric
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Letterpress Things has something:
Polishing/Cleaning Block: Ideal for type and icons, brass, copper and metal plates. Removes ink and grime, restores surfaces to pristine printing condition.
I have not tried it myself, but it looks interesting.
Perhaps, check out *Ultrasound Cleaning*.
way back, when L/press & Hot metal was King, >Ultrasound< was used for cleaning items as above, NOT intended for such, normally for Coins and similar, (metal detector finds). etc.
Plus look up >Cilit Bang)<? Well documented for North America, different name, perhaps,…If the spiel regarding the Coins, holds good.!!.
I have cleaned up a few line cuts with toothpaste and an old electric brush. Just go easy rinse well and dry add some light oil to store.
Paint stripper can be used and use a natural bristle brush.
Nylon brushes and metal polish are not always a good thing especially on copper halftone plates
I suspect that some of the grunge on a few of those pieces is oxidation, which when removed will leave a corroded and pitted surface.
Thanks for the all the info!
Worth noting that a simple gentle grade toothbrush with toothpaste will also do a very good job of removing oxidation. I like to use Arm and Hammer Baking Soda toothpaste.
When you’re done you can clean the toothpaste off with a little water, but be sure to dry the pieces quickly.
Another thing I’ve found to work is a good soak in brasso polish followed by a toothbrush cleaning. This will polish it up nicely as well.