Ever tried trimming material just to make it "sort of fit"? Chances are, you’ve done it more often than you’d like — and ended up with a less-than-perfect finish. Rigid boards just don’t cut it when it comes to filling gaps or blending seamlessly with plaster. That’s where granulated cork steps in: it naturally adjusts. No need for cutting or complicated prep — simply pour it where needed. It’s natural, lightweight, and incredibly easy to work with.
Natural
Flexible
Loose-Fill Insulation
Lightweight
Versatile
Safe
Got questions? We've got answers.
WHAT IS GRANULATED CORK?
It’s natural cork that’s been finely crushed into small granules. These light brown particles are porous, durable, and easy to work with. They mold easily to any space, making them much more flexible than traditional sheets or rolls.
WHAT CAN YOU USE GRANULATED CORK FOR?
Granulated cork offers endless possibilities across industries:
- Construction & Industry: Great as an additive in lightweight concrete, insulating plasters, adhesives, and even foundation solutions.
- Insulation: Perfect for filling wall cavities to enhance energy efficiency.
- Composite Cores: A go-to lightweight material for vehicle interiors and cabins.
- Furniture: Eco-friendly stuffing for ottomans, bean bags, and chairs.
- Footwear: Used in soles and insoles for added comfort.
- Sports & Playgrounds: Ideal for punching bags, balls, sports fields, and playground bases.
- Gardening: Improves soil aeration and structure when mixed in.
- Crafts & Modeling: Mimics gravel or small stones, perfect for models, DIY crafts, and décor.
- Terrariums: A safe and natural bedding option for reptiles.
- Spill Cleanup: Excellent for absorbing oil and liquid spills.
IS IT CERTIFIED SAFE?
Absolutely. It comes with an official hygiene certificate from Poland’s National Institute of Public Health (PZH). That means it’s safe for skin contact, won’t trigger allergies or irritation, and is certified for peace of mind. We’re the only company in Poland currently offering certified granulated cork.
WHAT’S THE DENSITY?
Density depends on grain size:
- 0.5 – 1.0 mm: 140–150 kg/m³
- 1 – 2 mm: 100–110 kg/m³
- 2 – 3 mm: 120–130 kg/m³
- 3 – 4 mm: 110–120 kg/m³
- 4 – 5 mm: 120–130 kg/m³
IS GRANULATED CORK ECO-FRIENDLY?
Yes, 100% natural and sustainable. Harvested from cork oak bark, which regenerates naturally, granulated cork decomposes on its own without harming the environment.
HOW IS IT MADE?
It’s crafted from the bark of the cork oak tree. Every 9–12 years, the bark is carefully harvested without cutting down the tree. Once dried and cleaned, it’s ground into fine granules.
DOES IT LOSE ANY QUALITIES WHEN CRUSHED?
No way. Granulated cork retains all the perks of natural cork — insulating against heat and noise, resisting moisture, and remaining adaptable.
Plus, thanks to its granulated form, it’s even easier to pour, shape, and use in tricky spots.
DOES IT REALLY INSULATE?
Absolutely. Cork naturally insulates by trapping air in millions of closed cells, making it perfect for both soundproofing and thermal insulation.
DO YOU OFFER OTHER TYPES OF CORK GRANULES?
Yes, we also carry:
- Cork Dust — ultra-fine for delicate uses.
- Cork Chunks — larger pieces for bulk filling needs.
HOW SHOULD YOU STORE UNUSED GRANULATED CORK?
Keep it in a cool, dry, and ventilated spot like a garage, basement, or closet. Avoid heat and direct sunlight, and store in a sealed container to maintain freshness.
IS IT A GOOD CHOICE FOR GARDEN PATHWAYS?
Definitely. It’s soft and pleasant to walk on, won’t heat up quickly, and won’t turn to mud after rain. A smarter, eco-friendly alternative to stone or concrete.
Most insulation materials are either bulky and inconvenient or fragile and short-lived. Granulated cork stands out as a natural, lightweight, durable, and highly adaptable alternative. It shines where other options fall short — hard-to-reach areas, irregular shapes, and everywhere flexibility matters most.
#1 ONE PRODUCT, ENDLESS POSSIBILITIES
Traditional insulation solutions — like foam boards, mineral wool, or polyurethane foam — often force you to design around the material itself. Cutting, shaping, and constant adjustments can quickly turn into a tedious process. That means wasted time and effort.
Cork granules work differently. They mold to the space effortlessly, offering true convenience. That’s why they’ve become a go-to choice across construction and industrial applications. Whether mixed into lightweight concrete, thermal plasters, adhesive composites, or foundation bases — cork granules deliver. They're especially effective as wall cavity fillers, dramatically improving thermal efficiency.
#2 INSULATION WITHOUT THE BURDEN
Granulated cork delivers exceptional thermal and acoustic insulation. Packed with millions of air-filled cells, it naturally blocks out temperature fluctuations and noise. Best of all, it adds almost no extra weight to your structure, unlike many traditional alternatives.
Adding cork granules to plasters, mortar, or concrete isn't just eco-friendly — it's a game changer for performance. These mixes retain heat more efficiently, reduce noise levels, and remain noticeably lighter, making them easier to work with on the jobsite.
#3 PROVEN SAFE — CERTIFIED FOR YOUR PEACE OF MIND
While many products claim to be safe, our granulated cork proves it. Certified by the Polish National Institute of Public Health (PZH), it’s guaranteed to be skin-friendly — non-irritating, hypoallergenic, and free from harmful side effects.
That makes a huge difference in environments where safety can’t be compromised. Whether it’s kids playing barefoot or athletes practicing directly on the surface, cork granules are an ideal natural cushioning solution. They soften falls, reduce the risk of scrapes, and their springy texture helps prevent injuries. It’s not just theory — it works day after day.
#4 100% NATURAL & SUSTAINABLY SOURCED
Made entirely from pure, natural cork — with no synthetic fillers, additives, or dyes — our granules come straight from Portugal, a country deeply committed to preserving cork’s rich tradition and quality. There, cork oak trees have been carefully harvested for generations.
This is no greenwashing gimmick. It’s truly eco-friendly. The cork is harvested without harming the tree — the bark regenerates naturally while the tree keeps growing. In today’s world of resource-intensive production, cork offers a refreshingly sustainable alternative.
#5 BUILT TO LAST — INSIDE AND OUT
Beyond its insulation benefits, granulated cork is naturally resilient. It doesn’t create the kind of damp environment where mold and mildew thrive. Plus, it’s unattractive to pests — it won’t draw insects or rodents, and termites won’t feed on it.
Another major plus? Cork is non-conductive, so it’s safe to use around electrical components where preventing short circuits is critical. Combine that with its outstanding chemical stability, and you get a material that’s as reliable as it is natural — a long-term solution for any project.
| Fraction | 0.5-1 mm |
| Volume | 4 kg |
| Color | Natural |
| Material | Natural cork |
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