This was a comparison between Polymaker Poly Cast filament and PLA filament. The process used is call "lost PLA casting". Almost the same as lost wax casting.

links to each filament used here:

Poly Cast: https://amzn.to/3qSdwft
PLA: https://amzn.to/3stNqA4

Link to the filament dryer used here:
Ebois filament dryer here: https://amzn.to/47LUurT

Lincoln bust 1: https://www.ebay.com/itm/276015450505...


Lincoln bust 2 here:

https://www.ebay.com/itm/276015444657...

00:0000:34 intro
00:3401:40 filament details
01:4003:30 preparation of the prints
03:3005:58 PLA burn out
05:5807:52 PLA casting
07:5208:35 Poly Cast Burn out
08:3509:00 Poly cast Casting
09:0010:50 Metal Chasing
10:50 PLA vs Polycast Final review