Resin Research 2100X Extra Slow Hardener for use with Resin Research 1980, 2000, 2000CE, 2020, and 2040 A sides.
Typical pot life for fast hardener is 160 minutes for 100 grams @ 77F and a set time of 12-16 hours (thin film). May require post curing to cure properly.
This is the hardener only, does not include the A side epoxy. Mix ratio is 2 parts epoxy to 1 part hardener by volume.