Complete tarnish ?

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TheSneakerHoarder

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Another_method:

Immersion black nickel:
potassium thiocyanate....6 gm
sodium sulphate..........100 gm
ammonium persulphate.....2oo gm
ferric sulphate..........10 gm
water....................1 lit
pH 1-2,instead persulphate you can use Hydrogen Peroxide [linked by editor to product info at Amazon]
according to Fishlock: Metal Colouring, Teddington 1962.
 

TheSneakerHoarder

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The damm base still darker than the RES chamber plus i cant get the RES cap to turn !


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Oh_.........You_left_it_attached?

Purposeful_tarnishing_is_considered_altering_the_metal--etching/etc.

You_need_to_get_it_off_and_clean/lube_it_ASAP.

I've_been_too_busy_at_work_to_try_anything_other_than_constant_fondling.

Just_get_that_cap_off_ASAP.

I_have_a_spare_used_RES_you_can_have_super-SUPER_cheap_if_yours_is_ruined.
 
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