Cork fillers

Cork fillers are cork-based compounds, usually in the form of a paste. They’re made from ground cork combined with a binder. They are most commonly applied using an applicator or a spatula.

When is it worth using them? If you:

• want to seal an expansion joint or a narrow gap (e.g., by the floor),
• need to fill a defect or cavity (e.g., in a shoe sole),
• work with leather and create 3D embossing,
• need localised insulation in hard-to-reach areas,
• operate in the footwear, construction, or creative industries.

And when does it not make sense? Cork filler is not a replacement for insulation boards. If you want to soundproof or insulate a room, it’s better to go for cork sheets or expanded cork.

If you’re not sure whether it’s the right choice for your application, get in touch with us. It’s always better to check before buying!

It depends on the specific product and the effect you want to achieve.

• Bostik 3070 Sealant Liquid Cork – mainly used for sealing floor expansion joints, but it also works well in other applications where you need cork in a “liquid” form.
• Cork paste / cork filler – commonly used in shoe soles, decorative elements, and model making.
• Renia 3D Embossing Filler – a paste designed for 3D leather embossing. It fills the space beneath the pattern, helping the embossing stay stable and retain its shape.

If you’re not sure which filler is right for your project, get in touch with us. Describe what you’re working on and the effect you want to achieve — we’ll help you choose the right solution.

Yes. Only the form changes, not the nature of the material. Instead of a sheet or a roll, you have cork that can be applied precisely where needed — pressed into a gap, shaped, and adapted to difficult spaces. That’s not something you can easily do with a sheet or a roll, which is exactly why convenient cork fillers were developed.