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Industrial Mineral Supply

Premium Ground Walnut Shells Grit Size 18/40-5 lbs/2.3 kg - Medium to Fine Grit Walnut Shells for Tumbling, Blasting or Vibratory Use

  • Based on 161 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 16
Order within 7 hours and 31 minutes
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Features

  • 18/40 Grit
  • Walnut Shells Polish Surfaces without Damaging the Substrate
  • Non-Skid/Anti-Slip
  • Use Low Pressure 20-60 PSI for Soft/Sensitive Materials
  • Perfect Filler for Pin Cushions, Won't Dull Your Needle

Description

Our Walnut Shells offer excellent solutions for applications in a wide variety of industries: adhesives, construction, resin, plywood, laminated veneer lumber, furniture, rubber, paint and cosmetic industries. Walnut Shell granules are also excellent non-skid & anti-slip paint additives for decks, ramps, pools, floors and stairs. Walnut Shell media is an all-natural, biodegradable, low-cost solution for blast cleaning, paint stripping, coating removal, pressure blasting, tumbling, deflashing and deburring.

Brand: Industrial Mineral Supply


Color: Brown


Age Range (Description): Adult


Material: Walnut Shells


Item Weight: 2.47 Kilograms


Number of Items: 1


Number of Packs: 1


Unit Count: 80.0 Fluid Ounces


UPC:


Brand Name: Industrial Mineral Supply


Age Range Description: Adult


UPC: 739601234971


Manufacturer: IMS


Unit Count: 80.0 Fluid Ounces


Color: Brown


Material Type: Walnut Shells


Item Weight: 2.47 Kilograms


Number of Items: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good Stuff!
The shells come in a nice convenient jar and they work great! Used them on some rusty tool bits and they cleaned up very nice.
Reviewed in the United States on March 26, 2026 by CEBrown
    • Great for crafts!
Incredible product for crafts. I bought it to fill a pin cushion inside a nylon bag and there is no leakage. The size of the container will last for a long time. A great value for any crafter, it can also be used for miniatures. There was no smell that I noticed. Overall, great product.
Reviewed in the United States on December 4, 2025 by Kindle Customer
    • Amazing results!
Review Image by Lawrence Taylor-Duncan
Great quality. Lasts ages in my vibrating tumbler. Brass parts come out like new.
Reviewed in the United States on March 30, 2026 by Lawrence Taylor-Duncan
    • A little smaller than expected but will work just fine
Bought to use for a texture in texture art and resin work for texture. This will be perfect
Reviewed in the United States on January 8, 2026 by Anne K
    • good for polishing soft rocks and pieces of wood
The mohs hardness of 18/40 walnut shell is 3.5 to 5.0, or about 4. Fine for fairly soft rocks or polishing wood, or cleaning surfaces.
Reviewed in the United States on November 23, 2025 by Orrin
    • Does the job without making a mess and no noticeable dust.
This seems to do what it is sold to do, polish brass. And there is no dust or residue as far as I can tell. Works good for me :-)
Reviewed in the United States on November 25, 2025 by Chris G
    • Top quality
Just what I needed for my projects. Good quality.
Reviewed in the United States on November 20, 2025 by Amazon Customer
    • Works great
This will work great for my stuffing and weight of my animal I make. The jar is more than enough. The cap for the jar was cracked and some of the shells were in the package
Reviewed in the United States on September 8, 2025 by Pat

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