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Thread: Again, I Come Seeking Guidance and Knowledge: Aluminum Mould Cleaning and Resurection

  1. 06-28-2023, 11:06 PM #1
    challenger_i
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    Again, I Come Seeking Guidance and Knowledge: Aluminum Mould Cleaning and Resurection

    I recently acquired a Rapine 319125 mold. It seems that in its former life it had been exposed to a bit too much water.

    The bullet surface appears to be in serviceable condition, however the balance of the surfaces have a bad case of aluminum cancer (white and darkish grey corrosion).

    I am very practiced in corrosion control and repair on aircraft structures, but I am not certain these methods would be conducive to the longevity of an accurate casting of a bullet mold. What can I do to restore this mold without damaging the molding surfaces?
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  2. 06-29-2023, 07:31 AM #2
    metricmonkeywrench
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    Had a similar question a while ago on a Lee 6 cav. My final decision was more or less if the bearing surfaces clean up in the size die its probably better to leave it as is.

    https://castboolits.gunloads.com/sho...ee-6-cav-mould
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check