Specialty Additives Available — Bulk Only

Crushed Walnut Shell (Walnut Shell Grit)

CAS 84012-43-1 · Formula Mixed

A biodegradable natural grit that cleans and finishes surfaces without the aggression of mineral abrasives. As a tough yet relatively soft, biodegradable abrasive it is used as blasting and tumbling media for deflashing, deburring, and finishing, and as a filler/extender, filtration medium, anti-slip additive, and cosmetic exfoliant.

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HS Code
1404.90
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Functional Roles
JUGLANS REGIA WOOD EXTRACT
SKIN CONDITIONING
Industries Served
Applications & Use Cases
  • Abrasive blasting: Soft-blast media for deflashing and deburring
  • Polishing & tumbling: Finishing and polishing media
  • Filtration: Filter media for water and produced-water service
  • Cosmetics: Natural exfoliant in personal-care scrubs
  • Additive: Filler/extender and anti-slip additive
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
1404 . 90
Chapter 14
Chemical product (see national tariff schedule for the full classification)
Heading 14.04
Internationally harmonized (WCO HS)
Subheading 1404.90
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
84012-43-1
Molecular Formula
Mixed
INCI Name
JUGLANS REGIA WOOD EXTRACT
Full Description

Crushed walnut shell (CAS 84012-43-1) is graded granular media produced from the hard shells of Juglans walnut. As a tough yet relatively soft, biodegradable abrasive it is used as blasting and tumbling media for deflashing, deburring, and finishing, and as a filler/extender, filtration medium, anti-slip additive, and cosmetic exfoliant.

Frequently Asked Questions

What is crushed walnut shell used for?

Crushed walnut shell (CAS 84012-43-1) is graded granular media from the hard shells of Juglans walnut. As a tough yet relatively soft, biodegradable abrasive it is used as blasting and tumbling media for deflashing, deburring, and finishing, and as a filtration medium, filler/extender, anti-slip additive, and cosmetic exfoliant.

Why use walnut shell for blasting instead of harder media?

Walnut shell is a soft-blast abrasive that removes flash, burrs, coatings, and contaminants without aggressively cutting the underlying substrate. That makes it suited to deflashing, deburring, and cleaning where harder media like sand or grit would erode the part.

What grit sizes are available?

Crushed walnut shell is screened into multiple grit/mesh grades for different blasting, tumbling, and filtration duties, from coarse deflashing grades to fine finishing and exfoliant grades. The exact size distribution per lot is confirmed on the Certificate of Analysis; request the CoA for the grade you need.

Is crushed walnut shell biodegradable?

Yes, it is a biodegradable vegetable-derived abrasive, classified under HS 1404.90 (vegetable products n.e.s.). This is part of why it is selected as a media in water/produced-water filtration and as a natural exfoliant.

How is bulk crushed walnut shell packaged and priced?

It ships in bags, supersacks, and bulk for industrial finishing, filtration, and formulation buyers. Packaging, MOQ, and pricing depend on grit grade and volume; submit a bulk RFQ with your target mesh size and quantity.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.