Materials glossary / Glass, crystal and resin
Polymer clay
On the label: Polymer clay · Glass, crystal and resin
What it is
PVC clay baked hard; the material of handmade earrings in every color. Light, does not shatter, softens in a hot car.
Glass, crystal and resins: Glass, crystal and enamel: the honest, inexpensive end of jewelry, when called what it is.
In the research
1 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- Dissolved organic matter adsorption from surface waters by granular composites versus granular activated carbon columns: An applicable approach · Water research, 2020
A paper is a paper, not a verdict: titles are listed so you can read them, and a study on one fabric or one filter says little about the piece in your hand.
Other glass, crystal and resins
Clasp & Lens describes materials from the public record and does not appraise, grade or test pieces; what a listing states is the supplier's statement. If a piece causes a rash, take it off; a reaction that spreads or blisters is a doctor's question, and sunglasses are no substitute for impact-rated eye protection where that is required.