Granulated cork

Had enough of trying to fit insulation around awkward shapes? Sheets and mats just don’t give you the flexibility you need. It’s frustrating when, instead of getting on with the job, you’re stuck trimming and adjusting — time’s ticking, costs are rising, and the end result is still far from perfect. Cork granules adapt to your project. Simply pour them where they’re needed — into building mixtures, plaster, or gaps in the walls. Certified by the National Institute of Hygiene in Poland, they’re proven safe, giving you peace of mind and the freedom to work your way.

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You probably have a few questions — we’ve prepared the answers!

WHAT ARE CORK GRANULES?

It’s natural cork in crushed form. Made up of medium-sized grains, it’s produced by grinding the bark of the cork oak tree. With its porous structure, it’s lightweight, efficient, and retains all the typical properties of cork — including resistance to moisture and microorganisms.

WHAT CAN CORK GRANULES BE USED FOR?

They have a wide range of applications:

Construction and industry: It’s an excellent component in lightweight concrete, thermal plaster, adhesive composites, and foundations.
Insulation: Perfect for filling cavity walls, enhancing thermal performance.
Reinforced composites: Used as a lightweight, elastic core in the manufacture of cabins and fittings for specialist vehicles.
Furniture-making: A sustainable filling for pouffes, chairs, and armchairs.
Footwear: Used in soles and insoles — lightweight, springy, and breathable.
Safe filling material: A natural infill for sports fields, it’s also used in shock-absorbing surfaces on playgrounds and as a sand substitute on artificial beaches.
Sports: Used in shooting rests, punching bags, shuttlecocks, and sports balls.
Gardening: Improves soil structure and aeration, acting as a natural soil conditioner.
Model-making, art and decoration: Brilliant for replicating gravel, sand, stones, or rock — ideal for dioramas, miniature landscapes, and creative projects. It’s also widely used in theatre and opera set design as a realistic sand substitute.
Terrarium use: A natural, safe substrate for tarantulas, reptiles, and other exotic animals.
Liquid absorption: Cork granules absorb oils and other liquids — commonly used in cleaning up oil spills.

IS CORK GRANULE CERTIFIED AS SAFE?

Yes — it holds an official hygiene certificate issued by the National Institute of Public Health in Poland. It’s safe for skin contact, non-allergenic, and doesn’t cause irritation. At present, we’re the only supplier in Poland offering cork granules with this certification.

ARE CORK GRANULES ENVIRONMENTALLY FRIENDLY?

Absolutely. It’s made from natural cork — a 100% renewable and biodegradable material. The cork is harvested from the bark of cork oak trees without causing any harm, allowing the trees to continue growing unharmed.

ARE CORK GRANULES SUITABLE FOR SPORTS PITCH INFILL?

Yes, absolutely. We offer cork granules specifically designed for pitch infill. They’re safe, natural, and make an excellent alternative to rubber-based materials.

Traditional insulation materials in rolls or sheets come with limitations — you end up adjusting to their shape, rather than the other way around. Cork granules give you greater freedom: use them to fill spaces, mix into plaster or concrete. They’re ideal for both renovations and new builds alike.

Not every application calls for the same type of cork granules. Need larger pieces for lightweight structural concrete? No problem. Looking for fine grain for decorative plasters or flexible acoustic compounds? We’ve got that too. It’s a bit like screwdriver bits — you don’t use just one for every job, you pick the right one for the task at hand. It’s exactly the same with cork granules, which is why there’s a wide range of grain sizes to choose from.

Just as importantly, cork granules are safe. It contains no harmful chemicals, doesn’t irritate the skin, and won’t trigger allergies. In construction, that’s a major advantage — especially in spaces where people come into daily contact with the material, such as schools, nurseries, playgrounds, or residential buildings.

What’s more, adding cork to building compounds genuinely enhances their properties. Mixes containing cork granules offer better thermal and acoustic insulation, are more durable, and noticeably lighter. That means greater comfort for users — and savings on heating and cooling in the long run.