SKU: 29982007638

Granulated Cork - Recycled, Mixed Grain, Dark | Cubic Foot

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Description

Granulated Cork - Recycled, Mixed Grain, Dark | Cubic FootDark Recycled Granulated Cork, also known as cork grain, is a lightweight, eco conscious natural material composed of ground cork bark, recycled cork stoppers, and cork off cuts, repurposed from cork waste that would otherwise go to landfill. The mixed grain size and mixed density of this recycled grade make it a versatile, cost effective option across industrial, horticultural, creative, and recreational applications where precise grain uniformity is

Dark Recycled Granulated Cork, also known as cork grain, is a lightweight, eco-conscious natural material composed of ground cork bark, recycled cork stoppers, and cork off-cuts, repurposed from cork waste that would otherwise go to landfill. The mixed grain size and mixed density of this recycled grade make it a versatile, cost-effective option across industrial, horticultural, creative, and recreational applications where precise grain uniformity is not required. In garden soil, granulated cork improves aeration and moisture retention to promote healthy plant growth without synthetic additives. In film, theatre, and stage set design, it simulates realistic sand, dirt, and terrain at a fraction of the weight of real materials. Please note that as a recycled product, this cork grain may appear slightly darker or dirtier than standard non-recycled granulated cork grades — this is a normal characteristic of recycled material and not a defect. Each cubic foot contains approximately 10 pounds of cork grain, though this varies depending on grain composition, and would fit a 12in × 12in × 12in carton. Cork grain may be a mix of compressed and loose grain, and orders of more than one cubic foot may be bulk packed into a single carton. Perfect for gardening and horticulture, film and theatre set design, industrial components and fillers, synthetic turf infill, playground surfacing, oil spill absorption, and any application requiring a lightweight, natural, and sustainable granular cork material where mixed grain size is acceptable.

Why Choose Dark Recycled Granulated Cork — Mixed Grain?

  • Recycled and repurposed cork waste — grinding and reusing cork bark, stoppers, and off-cuts keeps material out of landfills and puts it to productive use
  • Mixed grain size and density makes this a versatile, cost-effective option for applications where precise grain uniformity is not required
  • Improves soil aeration and moisture retention when mixed with garden soil, supporting healthy plant growth without synthetic additives or chemicals
  • Ideal for film, theatre, and stage set design — simulates realistic sand and terrain textures at a fraction of the weight and cost of real materials
  • Natural alternative to rubber infill for synthetic turf and playground surfacing, providing a lightweight, biodegradable, and non-toxic playing surface
  • Absorbs oil quickly, making it effective for small domestic and industrial oil spill cleanup

Recycled Granulated Cork outperforms rubber, sand, and synthetic granular materials by combining genuine lightweight versatility with a fully natural, recycled composition suitable for horticultural, industrial, creative, and recreational use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 29982007638

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Patricia Dodd
Alexandria, US
★★★★★ 5
surprised!
I actually didn't realize I had ordered "time released" version. I thought these were just normal melatonin. But now that I've tried these, I love them so much better than the regular version! Helps me sleep better through the night. No taste, love this brand of Source Naturals.
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Reviewed in the United States on October 17, 2025
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ChelaTho813
Battle Creek, US
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
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Reviewed in the United States on March 13, 2025
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Belle of the Ball
Bozeman, US
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
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PSBone
Lowell, US
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
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Eudy Ernesto De León Batista
Carnegie, US
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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Reviewed in the United States on February 3, 2026

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