Hello!, I just got an order in for custom coasters and she wants me to put bullets in them. She gave me .22 rounds. I'm wondering if the resin will get too hot when curing to be an issue? I've seen a YouTube video of making bullet coasters but they used a different brand of resin. Will this work?
Also it sounds like you will be using one of the Clears and while they do get warm when curing, they won't get as warm as a faster curing resin like RC-3 so like Brian said, you should be safe doing it.
Some resins can reach 400 degrees Fahrenheit while curing, especially large pours. Ignition temperature for small arms ammunition propellent range from 350 - 400 degrees, Fahrenheit. Probably not a good idea to use live ammunition. Remove primer and powder before using around any heat source. Better, yet, might be to have customer provide inert (no primer or powder in the case) rounds.
Also keep in mind that unless primer and propellent (powder) are removed, each round is considered live ammunition and cannot be shipped via USPS. Other shippers, such as FEDX, UPS, DHL might accept live ammo, but their restrictions are quite...well...restrictive. Not following the rules can land one in jail.
To remove a primer,take a small file with a drill bit edge (or a small drill bit) and carefully twist it to work the primer up and out. Or at least that's what I've see done. I wouldn't use a drill - you should be able to do it by hand and it should pop right out.