Granulated cork 4-5mm - 10kg

It’s natural cork in ground form. The grains are earthy-toned, light brown, and feel porous to the touch. They’re clean, adaptable, and don’t produce dust. This loose version of natural cork is much more versatile—you can tip it into gaps, and use it in ways you just can’t with stiff sheets or rolls.

This type of natural cork is handy across multiple areas and industries:

• Construction and industrial uses: great as an addition to lightweight concrete, thermal plasters, glues, and foundations.
• Thermal insulation: works perfectly for filling wall cavities to enhance heat retention.
• Core for composites: ideal for use inside cabins, vehicle interiors, etc.
• Furniture: a green filling option for soft seating like pouffes or lounge chairs.
• Shoe manufacturing: used in producing soles and footbeds.
• Sports and surfaces: filler for balls, punching bags, and sports pitch infill. Also seen in play areas and decorative faux beaches.
• Gardening: when blended with soil, it improves air flow and soil consistency.
• Crafts and model-making: resembles gravel or pebbles, ideal for dioramas, nativity sets, or theatre props. Also doubles as lightweight fake sand.
• Terrarium bedding: safe and natural base layer for terrarium setups.
• Absorbent for spills: used in clearing up oil.

Absolutely—they carry an official health certification issued by Poland’s National Institute of Public Health (PZH). This proves that the cork granules are totally safe for skin contact—no allergies, no irritation, nothing harmful. If verified safety is a priority for you, this product ticks the box. In fact, we’re the only brand in Poland offering cork granules with this exact approval.

Density depends on the grain size (fraction):

• 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.

Yes, it’s sourced from the bark of cork oaks—a raw material that renews naturally and doesn’t require tree removal. It’s entirely eco-friendly, breaking down naturally over time. No synthetic additives, no pollution. It simply goes back to nature when it’s done.

Granulated cork is made from cork oak bark. No trees are felled—the bark is gently harvested every 9 to 12 years, then left to dry and cleaned up. After that, it goes through mechanical grinding. This process produces various sizes of granules, from powdery fine to chunkier bits.

No, not at all. Ground cork is still cork—it keeps its excellent properties like thermal and sound insulation, moisture resistance, and flexibility.

Breaking it down into smaller grains just opens up more ways to use it. You can pour it, mould it, and apply it where sheets would fail. Granulated cork is just more versatile—lighter to handle, easier to fit, and perfect for awkward spaces.

It absolutely does—cork is a natural insulator against both heat and noise. This is due to its unique structure: millions of tiny sealed cells filled with air.

Unlike synthetic options like polystyrene or rock wool, cork needs no added chemicals or intense processing. It's light, durable, and breathable.

Yes, we’ve got a few options:

• Cork powder – super-fine, almost flour-like in texture.
• Cork nuggets – bigger loose bits for when a heavier fill is needed.

Best kept in a cool, airy space—a cellar, shed, or pantry is great. Just don’t leave it near heaters, in hot rooms, or exposed to sunlight. Keep your cork granules sealed up tight in a container.