A catastrophic product

Catastrophic happens, I've never seen that.
The activity with the children turned to the catastrophe, the dough is very sticky, the product visibly deteriorated chemically and sticks to death the children of the fingers so much so that after 10 minutes, everyone was in tears, had to spend half an hour in the bathroom to clean hands, but I also screwed up the table, it took me hours to recover and scraper with water.
The product is useless, even dangerous, and finished in the trash.
We must remove this product from the market.