Industries and Applications

This chart is for product to application reference by popularity. Applications and sizes in which they are used are not limited to the listings shown. Please call or email our sales team for questions regarding size.


The cosmetic industry uses walnut shell media as an exfoliate in facial, body and foot scrubs. Walnut shell is used by many, from the novice soap maker to the commercially distributed cosmetic lines. Eco-Shell will aid in formulating the custom grit sizes desired.

Oil Industry

Walnut shell is used as lost circulation material to combat typical operational problems associated with drilling mud losses. Walnut shell is an easy and efficient solution to lost circulation problems. Walnut shell does not significantly change mud properties and can be removed and perhaps recycled with ease. Walnut shell is available in coarse, medium and fine grit sizes.

Pet Applications

Walnut shell is an all natural safe biodegradable bedding for birds, reptiles and small animals. Walnut shell is dust free, easy to dispose of and can be used in composting. A clean cage makes for a happier pet.

Fillers and Extenders

Walnut shell is used in many applications as a filler or extender. Paint and coating materials, resins, pigments, plywood, adhesives, ceramics, dynamite, tile and livestock feed just to name a few. Media sizes vary from coarse walnut shell to walnut shell flour.

Molded Plastics

The molded plastics industry uses walnut shell both as a decorative additive to enhance appearance and as a filler material in plastic creations. Walnut shell as a filler reduces the cost of the compound as it is generally less expensive than the base. Walnut shell will not sink to the molded surface of most plastics due to its light density thus reducing the weight of cast parts. Products that are being made today include: countertops, gun stocks, baseboard, cutting boards, bowls, plates, and cups. This is just to name a few. . . . What is your creation?

Water Filtration

With the changing of environmental regulations, manufacturers around the world are required to meet new water quality standards. Nutshell filtration is the next generation of technology. Our walnut shells are being used in filtration systems to remove oil and grease, as well as suspended solids from a variety of oilfield, chemical plant, and refinery water streams. Walnut shell has a high modulus of elasticity, increasing the longevity of use. Walnuts shells are regenerated by using the supply water for backwashing the contaminates from the shells. The removal of oils and solids can be as efficient as 99%, which is unachievable by many other forms of removal technologies. The chemical properties of the walnut shells are stable and are one of the most efficient cost saving media in use today.


Ground walnuts shells are a type of abrasive blast media used for cleaning. Typical substrates are metals, fiberglass, woods, plastics and stone. The walnut shells are ground to various sizes from coarse to extra fine depending on the application. The walnut shells are used in the same manner as typical blast media. Walnut shells are durable and can be re-used in many applications. Walnut shells can remove matter from surfaces without scratching or pitting underlying material.

Walnut shell is biodegradable, non-toxic, environmentally safe and cost effective for blasting. Walnut shell does not cause silicosis.


Walnut shells are used in many polishing and/or deburring applications. Walnut shell media is used for polishing or cleaning fine metals, alloys, mechanical parts, shell cartridges, eye glass lens, rocks, stones, coral, ivory, beans, and seeds.

Jewelers use walnut shell media treated with rouge in both tumbling and vibratory applications for polishing gems and fine jewelry.

When polishing the media size should be small enough to freely pass through openings or large enough to avoid lodging in openings or crevices.