Technical Guides
Neutral, practical guidance for buyers, formulators and process engineers working with industrial minerals.
API 13A Drilling Clays Explained: Bentonite, OCMA-Grade and Attapulgite
What API 13A Sections 9, 11 and 12 cover, what each test parameter tells you, and how to choose between bentonite, OCMA-grade bentonite and attapulgite for fresh-water and salt-water muds.
Read guide 6 min readAttapulgite vs Bentonite: Differences, Properties and Uses
Both clays thicken, absorb and bind, but their crystal structures make them behave very differently. A side-by-side look at properties, uses and how to choose.
Read guide 6 min readBentonite for Foundry Green Sand: A Practical Guide
How bentonite bonds green sand, when to use sodium, calcium or blended clay, which tests matter, and how clay control links to common casting defects.
Read guide 7 min readHow to Choose Bleaching Earth for Edible Oil Refining
What bleaching earth removes, how activated, natural and low free acid grades differ, which specifications matter, and how to run a fair laboratory comparison.
Read guide 7 min readSourcing Industrial Minerals from India: A Buyer's Checklist
A step-by-step checklist for procurement and QC teams: writing the specification, testing samples, the documents to request, packaging, Incoterms and checks on arrival.
Read guide FAQFrequently asked questions
Ordering, samples, documentation, packaging and export — answered in one place.
View FAQLet's discuss your specification.
Share your application, target grade and volume. Our technical team replies with a matched grade, a datasheet and a quotation.