Description
nora® Lunatec combi cork 1 is a vulcanised composite expanded EVA sheet developed for the manufacture of durable orthopaedic insoles and foot beddings requiring a combination of resilient cushioning and strong stabilising support. The sheet combines a permanently resilient EVA cushioning layer with a high cork content stabilising layer, permanently fused during manufacturing to create a secure composite without the need for adhesive bonding.
The stabilising layer contains a high proportion of cork, providing excellent rigidity and long term dimensional stability, making the material ideal for orthopaedic insoles that must withstand high mechanical stress. The upper cushioning layer made from nora® Lunalastik offers permanently resilient comfort together with a slightly roughened, velvety surface that is well suited for attaching leather covers or top layers.
Because the layers are vulcanised together during production, the composite sheet provides consistent quality, clean processing, and reliable bonding without displacement, bubble formation, or hardening caused by adhesive films.
Material construction
Top cushioning layer
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Material: nora® Lunalastik
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Hardness: approx. 25 Shore A
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Density: approx. 0.23 g/cm³
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Colour: 07 beige
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Thickness: approx. 6 mm
Base stabilising layer with cork content
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Material: nora® Lunatec cork H
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Hardness: approx. 50 Shore A
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Density: approx. 0.35 g/cm³
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Colour: 205 cork
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Thickness: approx. 8 mm
Total thickness
Format
Composite sheet
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Trimmed edges for precise processing
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Permanently vulcanised layers
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High cork fraction stabilising layer
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No adhesive between materials
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Uniform bonding during manufacture
Intended applications
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Orthopaedic foot beddings
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Supporting insoles
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Insoles for flat feet, splay feet, hollow feet, and skew feet
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Stabilising orthopaedic insoles
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Insoles for high load applications
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Base material for orthopaedic shoe insoles
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Insoles with leather top covers
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Multilayer orthotic constructions
Key properties
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Permanently resilient cushioning layer
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High stability cork reinforced base
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Excellent durability under load
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Very good dimensional stability
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Roughened surface suitable for leather covers
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Secure composite without glue
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No displacement during thermoforming
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No bubble formation at joints
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No hardening caused by adhesive film
Advantages of Lunatec combi cork composite sheets
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Ready made multilayer material
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No gluing required between layers
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Efficient and clean processing
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High strength composite structure
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Ideal for durable insoles
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Time and cost savings in workshop production
Processing notes
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Thermoformable using standard EVA processing methods
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Suitable for vacuum forming and deep drawing
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Additional stabilising materials such as Norit, Lunacell, or Lunalight can be added if required
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Adapt pressure according to material flexibility
nora® Lunatec combi cork 1 is ideal for orthopaedic shoe engineering and prosthetic orthotic workshops requiring a strong, durable composite material with cork reinforced stability and permanently resilient cushioning for the manufacture of high quality orthopaedic foot beddings and supporting insoles.
