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Thread: Kroil in a boolit mold

  1. #221
    Boolit Bub
    Join Date
    Sep 2021
    Posts
    34
    I tried this yesterday with my new NOE .270 mold worked like a charm. Like stated above dropped like nothing was holding them and had no wrinkle issues

  2. #222
    Boolit Master
    Join Date
    Jun 2012
    Posts
    760
    Shell oil refinery and American Zinc company as well as Conalco all use Kroil in their plants on corroded bolts and valve stems.
    It really seeps under corrosion.Also at US Steel plants as well.
    Worked at them as well as Air Products, gas producers.
    Have used it and seen it in use in mechanics garages everywhere.
    I started using it as gun cleaner as well in concoctions.
    Good for freeing up leaf springs as well.
    If I sound like a commercial for it it's because it seems like an old friend, and yet, I still come across people who never heard of it.
    Persons I think would have seen it.

  3. #223
    Boolit Mold
    Join Date
    May 2014
    Posts
    14
    my experience with kano kroil is an exercise in trial and error. I am casting the Lyman 525 grain 12 gauge slug. this is a "sticky" mold, but whatever the issue is it is always on the same side of the blocks. I applied kroil to the blocks cold with a q tip. it didnt really make any noticeable difference other than giving me wrinkled slugs for quite some time after the blocks were up to temp. I then sprayed kroil right into the blocks while they were at casting temp. lots of smoke and I used a q tip to absorb the excess out of the cavity. casted about 10 slugs while the blocks were giving off lots of smoke and coming away with wrinkled slugs. had to stop for a bit to answer a phone call, maybe about 20 seconds or so and went back to casting. the very first slug fell out of the blocks without any resistance whatsoever. no wrinkles, a perfect slug. had 2 more fall out and then the third one needed a couple of raps on the pin. I learned that those slugs would fall out of the blocks only if the blocks were within a certain temperature range. too cold gets wrinkles, but too hot and they needed a couple of raps. the sweet spot is just a bit hotter than wrinkles but a fair bit below the "frosty" heat level or it gets sticky. yes, it works but I need another mold because my casting rate is slower than I like. btw, I am using 100% salvaged rad solder in the pot, really fills out the mold nicely. the mold cavity is no longer a shiny bluish black, it is a flat black even after a few hundred slugs, kind of like the same thing as a smoked cavity.

  4. #224
    Boolit Mold
    Join Date
    Mar 2024
    Posts
    1
    Dogs name


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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