Some info...written by our very own Mayor!
Petroleum distillates are harmful to rubber and vinyl, and will cause cracking.
My question is if oil-based products are bad, why do companies make them? Also, my thought is exactly as yours, but according to Mike Phillips, pd alone are not bad. It's what's added to them that makes them bad. Here is a quote by him from showcargarage.com. "While some petroleum distillates can be very dangerous, others are very safe. To group all petroleum distillates into one category and label them harmful or dangerous is unfair. Like the dishonest claim that silicones are harmful, claiming all petroleum distillates are harmful is also dishonest and disingenuous." So, I guess I'm confused.