Case lube and bore solvent
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Case lube
A wax, spray or liquid applied thinly to brass before resizing, so the case does not seize in the die. Small quantities, used constantly, and wiped off afterwards.
Which makes it an applicator question
A pad, a spray or a finger. For a liquid lube a small bottle with a controlled dispense, and this shelf is thin on dispensing closures with only 221 plain caps and little else.
And it must not reach the components
Lube on a bullet or inside a case mouth changes how it seats and, for the inside of a case, is a contamination problem. Keep it away from the open containers.
Bore solvent
Cleaning chemistry, and the copper-removing solvents are the aggressive ones. Many carry ammonia, which is what dissolves copper fouling.
Which is a resin compatibility question
An ammonia-bearing solvent in the wrong plastic degrades the container. 56 glass containers here and 15 glass Boston rounds are the certain answer.
And 78 PP containers are the tolerant plastic
Polypropylene handles a wider range than PET. For a decanted solvent it is the better polyolefin, and for anything uncertain glass settles it.
The liner is in contact with it
9 liners and sealing discs. A cap that corrodes shut is the first sign that the liner was wrong, and by then the closure is finished.
Decanting a solvent has duties
The shop consumables property sets out the workplace labelling rules for transferring a chemical into another container, including the narrow portable container exemption.
Ammonia is corrosive to some metals
Which is the reason to not leave solvent sitting on a bench near brass and steel components. A sealed container and a wiped bench.
Neither liquid is the hard part of this craft
The sorting is. These two are ordinary container questions and the two refusals are where the care is needed.