Message:

<p>[QUOTE=&quot;Kentucky, post: 2616378, member: 33176&quot;]The plasticizer used in PVC is usually one of the phthalates which are oily chemicals that get between the polymer chains of the PVC and cause them to slip over one another.&nbsp; Plasticizer leakage on coins should cause an oily, gunky film that could pick up almost anything from anywhere and hold it against the coin.&nbsp; Now if the PVC gets REALLY old or gets damaged from sunlight or heat, the PVC itself can degrade giving off HCl gas.&nbsp; If the gas is dissolved in water (hard to get away from) we call it hydrochloric acid.&nbsp; Now, this is all just bookish chem stuff, and I usually don&#039;t argue too much with old-hands in collecting who have seen a lot.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in