Board · 3–6 mm
Cork-Rubber — indicative fig. C·06
Fire Data pending Embodied carbon -2.50kgCO₂e/kg Stores carbonCompressive 15% at 0.7 MPa StructuralDesign life 15yr
Agglomerated cork + recycled rubber flooring/underlay with density 600?700 kg/m3, thermal conductivity ?0.08 W/mK, and impact-sound reduction ?Lw 16?19 dB (3?4.5 mm).
01 Physical
Density 600-700kg/m3
Specific gravity 0.45-0.50
Porosity 45-55%%
Water absorption <2% by volume (24hr immersion)%
Hardness Shore A 60-75
UV resistance Moderate (requires UV-resistant coating)
Chemical resistance Excellent to mild acids/alkalis, poor to organic solvents
pH tolerance pH 3-11
Surface roughness Ra 10-20 μmµm
02 Mechanical
Tensile strength >800kPa
Compressive strength 15% at 0.7 MPa
Flexural strength 200-400 KPa (increases with thickness)MPa
Shear strength 0.8-1.2 MPaMPa
Poisson's ratio 0.15-0.25
Impact resistance IIC 58 rating, 16-20 dB reduction
Creep resistance Recovery >75% after 0.7 MPa
03 Thermal
Thermal conductivity 0.08W/mK
Specific heat 1670 J/(kg·K)J/kg·K
Thermal expansion 40-50 ×10⁻⁶/°C×10⁻⁶/°C
04 Compliance & Fire First question
Fire & compliance data pending — verify combustibility and BAL rating against product certification before specifying.
05 Sustainability & Health
Embodied carbon -2.5 to +3.0 kg CO₂-eq/m²
Carbon footprint -116 to +25 kg CO₂-eq/m² (often carbon negative)
Embodied energy 25-40 MJ/m²MJ/kg
Water footprint 150-200 L/m²L/kg
Recyclability 90-100%%
Recycled content Contains recycled rubber
Renewable content 50-70% (cork component)%
Circular score 85/100 (manufacturer take-back programs)
VOC emissions <220 μg/m³ at 28 days (GREENGUARD Gold)
Toxicity rating Non-toxic, formaldehyde <9 μg/m³
LEED contribution MR Credit: 2-4 points, IEQ Credit: 1-2 points
06 Durability · Cost · Logistics
Expected lifespan 15-30 years (thickness and use dependent)
Maintenance interval Daily sweep, weekly mop, annual seal, 3-7 year refinish
Warranty period 10 years commercial, 15-25 years residential
Material cost (range) $85-100/m² + GST
Material cost (per unit) $85-100/m² (3mm: $85, 4.5mm: $92, 6mm: $100)
Lead time 24-48hr stock, 2-3 weeks local manufacture, 4-8 weeks import
Lifecycle cost $4-8/m²/year over 25-year lifespan
Annual maintenance $2-5/m² (cleaning and periodic resealing)
Market availability Readily available major cities, 2-8 week lead time specialty
07 Assessment
Advantages
- Impact sound reduction ?Lw 16?19 dB and IIC 47?52 for 3?4.5 mm underlay (test dependent)
- Thermal conductivity around 0.08 W/mK (ISO 8301)
- Tensile strength >800 kPa with good recovery after compression (ISO 7322)
Constraints
- Performance depends on floor build-up and thickness; verify supplier data
- Fire performance not specified in available datasheet
- Primarily documented as an underlay; finished-floor use depends on system spec
08 Applications
A1 Healthcare facilities requiring acoustic control and comfort
A2 Educational institutions (classrooms, libraries, corridors)
A3 Residential multi-unit developments meeting NCC acoustic requirements
A4 Commercial offices seeking Green Star certification
A5 Fitness centers and gymnasiums
A6 Aged care facilities prioritizing slip resistance and comfort
A7 Marine applications (IMO certified products)
A8 Recording studios and performance spaces
A9 Retail environments with high foot traffic
A10 Museums and galleries requiring stable climate control
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.