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Granulated cork 2-3mm - 5kg (50 liters) - BESTSELLER!

Unit Price from 1 pcs. 122,81 USD / pcs.

Unit Price from 2 pcs. 69,17 USD / pcs. Unit Price from 4 pcs. 67,17 USD / pcs. Unit Price from 6 pcs. 66,17 USD / pcs. Unit Price from 8 pcs. 65,66 USD / pcs. Unit Price from 10 pcs. 65,16 USD / pcs.

(incl. VAT)

Based on 6 Reviews

Model/Product no.: GK23SM

Weight: 5 kg

Stock status: In stock

pcs.

Have you ever spent way too much time trimming materials, only to end up with an "almost right" fit? You’re not alone. Even after all that effort, stiff boards simply can’t handle irregular shapes or work smoothly with plaster. That’s where granulated cork steps in: it naturally conforms to any space. Just pour it — no cutting, no hassle. Lightweight, eco-smart, and a breeze to work with in loose form.

Eco-Friendly

Flexible Fit

Loose Fill

White medical cross on beige background.

Ultra-Light

Multi-Purpose

Safe & Reliable

Got questions? We've got answers right here!

WHAT DOES GRANULATED CORK LOOK LIKE?

Granulated cork has a warm, natural color with a soft, porous texture. It’s durable yet adaptable, perfect for filling gaps or shaping spaces where rigid boards can’t compete.

WHERE CAN YOU USE NATURAL CORK?

The uses are practically endless. Some popular applications include:

Construction: As part of lightweight blends, plasters, or adhesives.
Insulation: Filling cavities for thermal and sound benefits.
Core materials: Often found in automotive and manufacturing sectors.
Furniture: Great for filling poufs, cushions, and soft seating.
Shoe components: Works perfectly in soles and insoles.
Sports and recreation: Used in punching bags, balls, and safe playground flooring.
Gardening: Improves soil aeration and structure.
Arts and crafts: Mimics pebbles or gravel for miniatures and displays.
Terrariums: A clean, natural base for enclosures.
Absorbent material: Great for soaking up oils and spills.

IS GRANULATED CORK SAFE?

Absolutely. Our cork is certified by the Polish National Institute of Public Health (PZH), ensuring it’s skin-safe and allergen-free. We’re proud to be Poland’s only provider offering certified granulated cork.

WHAT IS THE AVERAGE DENSITY?

Density varies based on grain size. Typical values include:

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 CORK A SUSTAINABLE CHOICE?

Definitely. Harvesting cork bark doesn’t harm the trees — they regenerate naturally. Cork breaks down without leaving plastic waste, making it a truly eco-conscious material from start to finish.

HOW IS CORK PRODUCED?

It all starts with cork oak bark, which is responsibly harvested every 9 to 12 years. After drying and cleaning, the bark is ground into granules sized for different applications.

DOES GRINDING IMPACT QUALITY?

Not at all. Granulated cork retains all its natural insulating abilities — resisting heat, moisture, and noise.

Plus, loose cork offers amazing flexibility. It’s easy to pour, mold, or fit into tight spaces, where flat sheets just won’t work.

IS CORK REALLY GOOD FOR INSULATION?

Yes — naturally. Cork’s air-filled structure makes it a great insulator. It keeps heat in and blocks sound out without the need for chemical additives.

It’s breathable, lightweight, and durable — and above all, safe and eco-friendly.

DO YOU OFFER OTHER TYPES OF CORK?

Yes, we do! You can also choose from:

Fine cork powder — ideal for precision tasks.
Larger cork granules — when you need volume and durability.

WHAT’S THE BEST WAY TO STORE LEFTOVER CORK?

Keep cork in a cool, dry place like your garage or storage room. Avoid heat, direct sunlight, or moisture. Sealed containers work best to preserve its quality.

CAN YOU USE IT FOR GARDEN PATHS?

Yes — and it’s a great option! Cork is soft underfoot, doesn’t get too hot, and won’t turn muddy when it rains. It makes an excellent alternative to gravel or paving stones.

Most insulation materials are either bulky and tough to handle or simply too fragile to last. Ground cork offers a smarter, natural solution: it’s lightweight, durable, and incredibly versatile. Where other options fall short—like tight corners or unusual shapes—cork delivers precision and flexibility exactly where it matters.

Black text WHY is it worth it?» with cork on the right on a white background.

#1 ONE MATERIAL, ENDLESS POSSIBILITIES

Traditional insulations like mineral wool, styrofoam, or polyurethane often force you to adapt your design around the product. That means cutting, reshaping, and often rethinking the entire project. That's a serious drain on your time and resources.

Ground cork flips the script. It molds to your space with ease. That’s why builders and contractors love it. Whether it’s used in thermal mixes, lightweight concrete, or adhesives, cork is a flexible performer. It’s also a top choice for cavity wall insulation, boosting energy efficiency where it counts most.

#2 LIGHTWEIGHT INSULATION THAT DELIVERS

Cork granules are packed with tiny air pockets, offering exceptional thermal and acoustic insulation. Unlike heavy fillers, cork stays light — reducing stress on structures without sacrificing performance.

Adding cork to plaster or concrete is more than just an eco-conscious move — it enhances performance too. It helps lock in heat, reduce noise transmission, and keeps your materials easy to work with.

#3 VERIFIED SAFETY YOU CAN RELY ON

Not every product that's labeled "safe" actually is. Our ground cork comes with a certified health approval from Poland’s National Institute of Public Health (PZH). It’s completely safe to touch — no allergens, no irritation, no side effects.

This makes it a perfect fit for places where safety comes first — like kids’ play areas and gyms. Ground cork cushions impacts, minimizes skin scrapes, and thanks to its natural bounce, helps prevent injuries. Real-world safety, not just paperwork claims.

#4 PURE, NATURAL, AND ADDITIVE-FREE

Our cork granules come from raw, untreated cork — with zero additives, fillers, or dyes. Harvested from Portugal, a country proud of its cork heritage, this material is sustainably sourced with care. The cork oak trees continue to thrive and regenerate naturally, generation after generation.

This isn’t about trendy eco-labels — it’s genuinely natural. Cork is harvested by gently peeling the bark without cutting down trees. In a world dominated by industrial farming, cork stands out as a renewable and responsible choice.

#5 BUILT TO LAST AND PERFORM

Ground cork does much more than insulate. It naturally resists mold growth and doesn't attract insects. Unlike many traditional materials, pests like ants or termites simply aren’t interested.

It’s also naturally non-conductive, making it a safe choice near electrical installations. Combined with outstanding chemical stability, cork stays reliable and effective for years to come — no matter the environment.