May 2026: We are continuing a major code rewrite. Please contact us if you find issues. Thank you.
Left: Traditional blue material, could be 20 years old.
Center: A shipment we got in Feb 2014.
Right: A shipment in Oct 2014.
Front: 10 gram balls prepared for a melt-flow GBFL test.
The blue powder is the most difficult to form (therefore the least plastic) after water has been added, the tan one is the easiest.
| Materials |
Cornwall Stone
|
![]() PayPal | No tracking, No ads, No paywall, No transient content! Just organized, concise information constantly updated and improved. Was this helpful? Consider supporting me. |
Buy me a coffee and we can talk