In this post on Spectrastat G2, Ally D shared, So far I have had success with this in my shampoos. However, at 1% usage (recommended usage is 1-1.2%) it curdled my lotion emulsion! I was very disappointed to say the least. I may try to pre-mix it with a bit of the emulsion and then add it in that way to see if it helps.

I'm sorry you've had this experience. I know very little about this preservative beyond reading about it - I have a sample, and I will be trying it out shortly - but I'll post what I can about it as I find out more.

As a note, Lotioncrafter is now carrying this preservative as Caprylhydroxamic Acid GCG?.

In this post, Is guar gum a good thickener for bath bombs", Elyse asks: I want to make bath bombs but instead of oil I want to use a surfactant like coco glucoside. Considering coco glucoside is about 50% water will I need to preserve the bath bombs" 
Surfactants contain water, which will set off the fizz in your bath bombs, so be cautious about adding a liquid like this to your mixture. Check out more about this topic in this recent post.

In this post on bath bombs, Amy said: Soo.. has anyone ever had theirs explode in a glass container" I've heard of this happening to multiple people.

Dear God, no! It sounds like something set off the fizz early and the container was too tight, so the gases couldn't escape and it blew off. Please please please don't store anything in glass containers, especially if you're in a bathroom. ...