is particle board ok to make a rack out of?

[Dillons-Bp's]

Nope, its weak and will warp in few months. Even if sealed its not best for racks.

Not to Mention particle board with no laminate on it splits,swells very easy

i think im gonna try to make one out of it if it doesn't work then oh well the wood is just laying there but im going to use this stain blocker mold resistant primer to cover the wood

then im going to use polyurethane to seal that but i cant find out if either of the things are toxic or will cause health issues when its dry, do any of you know if what i want to do is safe?