From what I can find it's mainly just tricopolymer liquid. I can find little information on that, and I don't think it's actually some scientific compound but the material safety information is here:
http://www.homedepot.com/catalog/pdf...d2ee322014.pdf
The product is water-based, but seems to not list water as one of its ingredients, so does that mean that tricopolmer liquid is water-based? A bit confused, but I think that would be it.
As a whitening tint there's iron oxide (rust), marble powder, and some clay-based substances - I got that from here:
http://agramarketing.com/page/_files...ymer1-2017.pdf
It's meant to be safe for all livestock, birdstock, and humans too. Non-toxic, though I wouldn't recommend drinking it
.
Label for the product is here:
http://agramarketing.com/page/_files...AL%20PROOF.pdf