[Symbiote]

You made a wild and massively exaggerated claim based on a rumour.

No, painting isn't "one of the most hazardous hobbies". That's something like caving, or rock climbing, or skiing, or diving, or horse riding, or BASE jumping.

And no, they aren't "questionable chemicals". They're considered safe for use by the UK, EU, USA and everyone else, as well as Games Workshop, schools, etc.