Originally Posted by F1Boss
...Also known as straight TETA, Is hands-down the most sensitizing hardener I have ever used. Back in the bad old days we used a lot of TETA with Epon 815C resin, a mix we came to call "Redeye." Now I just think of it as an epoxy allergy distribution system.
As Steve notes above, in our shop we use Jeffco 1307/3176 mix from Aircraft Spruce. Yeah, if you want drum quantities of it you can probably replicate it from 862 or 832, or even 828 (the base resin for those stocks), with standard Epon diluents. But it's probably not cost effective unless you need lots, and some of the diluents are pretty nasty chemicals.
The MGS 285 or 335 system is nice because it carries the EASA/LBA stamp of approval, but the properties are about the same as the Jeffco.
[Edit add: Steve already hit all the high points]