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Granulated cork 4-5mm - 10kg

Unit Price from 1 pcs. 153,38 USD / pcs.

Unit Price from 2 pcs. 148,87 USD / pcs. Unit Price from 3 pcs. 147,74 USD / pcs. Unit Price from 4 pcs. 145,49 USD / pcs. Unit Price from 5 pcs. 144,36 USD / pcs. Unit Price from 6 pcs. 142,11 USD / pcs. Unit Price from 7 pcs. 136,50 USD / pcs. Unit Price from 8 pcs. 125,31 USD / pcs. Unit Price from 9 pcs. 116,61 USD / pcs. Unit Price from 10 pcs. 109,65 USD / pcs.

(incl. VAT)

Based on 18 Reviews

Model/Product no.: RK45SM

Weight: 10 kg

Stock status: In stock

pcs.

Ever found yourself trimming materials just to make them “sorta fit”? Probably more often than you'd like to admit — only to be left with imperfect results. Stiff boards won't close gaps or blend seamlessly. This is where cork granules make all the difference: they naturally adjust to any space. Just pour them in — no cutting, no hassle. They're lightweight, flexible, and made from 100% natural cork in a loose, easy-to-use form.

Eco-Friendly

Flexible Fit

Loose Fill

White medical cross on beige background.

Feather-Light

Multi-Use

Dependable

Got questions? We’ve got straight answers for you.

WHAT ARE CORK GRANULES?

Ground natural cork at its best. These light brown, porous grains are dust-free, easy to use, and highly adaptable. Perfect for spots where rigid sheets fall short, they’re the go-to solution for smooth, gap-free coverage.

HOW CAN YOU USE CORK GRANULES?

Endlessly versatile, cork granules are useful in a variety of applications:

Construction and industrial projects: Enhance lightweight concrete, thermal plaster, adhesives, and foundations.
Thermal insulation: Fill wall cavities to improve energy efficiency.
Composite materials: Great for cabin walls, vehicle interiors, and beyond.
Furniture design: Eco-friendly stuffing for poufs and lounge chairs.
Shoe production: Essential for insoles and soles.
Sports and recreation: Ideal filler for balls, punching bags, play areas, and artificial beaches.
Gardening: Mix into soil for better aeration and structure.
Crafting and modeling: Mimics gravel — perfect for dioramas, nativity scenes, props, and lightweight faux sand.
Terrariums: A safe, natural bedding option.
Spill control: Absorbs oil and other liquids efficiently.

IS IT SAFE TO USE?

Absolutely — our cork granules are certified by the National Institute of Public Health in Poland (PZH). They are skin-safe, hypoallergenic, and irritant-free. We’re proud to offer the only PZH-approved cork granules in Poland.

HOW MUCH DOES CORK GRANULES WEIGH?

Weight varies by 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 NATURAL CORK ECO-FRIENDLY?

Definitely. Harvested from cork oak bark without cutting down trees, cork renews naturally and breaks down without leaving harmful residues. It’s 100% biodegradable and chemical-free.

HOW ARE CORK GRANULES MADE?

Made with care from cork oak bark. Every 9 to 12 years, the bark is harvested, dried, and cleaned before being mechanically ground into fine or coarse granules — ready for various uses.

DOES GRINDING IMPACT THE CORK’S QUALITY?

No compromises here. Ground cork still provides excellent insulation, moisture resistance, and flexibility. Breaking it down just makes it easier to use — pour it, mold it, or fit it wherever rigid materials can't.

IS CORK REALLY AN EFFECTIVE INSULATOR?

Absolutely. Cork naturally traps air in its cell structure, offering superb thermal and sound insulation. Unlike synthetic insulators, it’s chemical-free, breathable, and lasts for years.

ARE THERE DIFFERENT TYPES OF CORK GRANULES?

Yes, we offer options for every need:

Cork powder — ultra-fine and perfect for precision applications.
Cork nuggets — larger particles for heavier fill needs.

WHAT’S THE BEST WAY TO STORE CORK GRANULES?

Store them in a cool, dry place like a basement, garage, or storage closet. Keep the granules sealed and away from heat sources or direct sunlight to maintain their quality.

Many materials are bulky, hard to handle, and simply not made to stand the test of time. Granulated cork is a game changer: lightweight, durable, environmentally conscious, and incredibly easy to use. It fits seamlessly into tight spaces and tricky corners — wherever standard solutions fall short.

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

#1 ONE MATERIAL, LIMITLESS USES

Typical insulation products — from foam boards to mineral wool and PU foams — often dictate how you need to build. Cutting, adjusting, reshaping... sometimes it feels like you're building around the material instead of the other way around. That eats up valuable time and energy.

Granulated cork turns that idea on its head — it adapts effortlessly to the space. That’s why it’s a top pick across construction and industrial applications. From lightweight concrete and thermal plasters to adhesives and foundation fillers, cork does it all. It even enhances wall cavities, dramatically boosting thermal efficiency without the hassle.

#2 POWERFUL INSULATION WITHOUT THE WEIGHT

Cork granules deliver exceptional thermal and acoustic insulation thanks to their natural structure packed with air-filled cells. These pockets block sound and help stabilize indoor temperatures. Plus, they’re incredibly light — no need to worry about extra load on your structures.

Mixing granulated cork into concrete or plasters isn’t just eco-smart — it’s a performance booster. It enhances heat retention, dampens sound more effectively, and lightens the overall material weight — all in one step.

#3 PROVEN SAFE — NO GUESSWORK

A lot of products claim to be “safe,” but not all can back it up. Our cork granules come with an official hygiene certification from the Polish National Institute of Public Health (PZH). They’re certified skin-safe — hypoallergenic, irritation-free, and completely neutral in contact.

This matters most in places where protection is non-negotiable — from playgrounds where kids run barefoot to gyms and sports arenas. Granulated cork is the perfect choice for natural impact absorption. It softens landings, reduces scrapes, and thanks to its elastic nature, minimizes injury risks. Safety here is more than a promise — it’s a reality.

#4 ENTIRELY NATURAL — NOTHING ARTIFICIAL

Made from authentic, natural cork, our granules contain no synthetic chemicals, plastics, or artificial dyes. Harvested in Portugal — the global leader in cork production — this material comes from trees grown with respect for nature and tradition.

This isn’t greenwashing — it’s genuinely eco-friendly. Cork bark is carefully harvested without harming the tree, which continues to thrive and regrow its bark naturally. At a time when natural resources are under pressure, cork stands out as a renewable, sustainable option that keeps giving.

#5 BUILT FOR THE LONG HAUL

Granulated cork is not only a reliable insulator — it’s also extremely resilient. It resists mold, fungi, and remains unattractive to pests like termites, ants, and rodents, unlike many traditional building materials.

Beyond its insulation benefits, cork is naturally non-conductive, making it a safe bet near electrical installations. Plus, with its chemical stability, it ensures long-term performance without degrading over time. Simply put, cork granules are a future-proof choice that you can count on.