
100%
AMACO Stonex Self-Hardening Clay, White, 5 lbs.
by AMACO— Made in Indianapolis, IN
Verified American Made
American Score
88% — High
Why not 100%? Full verification requires additional independent sources
Manufactured in Indianapolis, IN
Manufacturing in USA since 1919Verified through 3 independent sources
- Known factory location
- Brand website
- Product listing
Evidence Breakdown
Factory: City-level verified
Website claim: Yes
History: 20+ years
Overseas lines: None known
Self-hardening white modeling clay from AMACO in Indianapolis, Indiana. Air-dries to a hard, stone-like finish without firing. Ideal for classroom projects, hand-building, and sculpture. Made in the USA.
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AMACO Stonex Self-Hardening Clay, White, 5 lbs.
88% American Score












