Sheet · 0.7–39 mm
Laminate — indicative fig. C·21
Fire Group 3 Group 3Embodied carbon 6.23kgCO₂e/kg HighCompressive HPL: 160-180 MPa; Particleboard: 10-12 MPa; MDF: 15-18 MPaMPa StructuralDesign life 10yr
Post-formed benchtops combine HPL surface layers with wood-based substrates. HPL laminate data report density ?1,350 kg/m? and flexural strength ?80 MPa, but full benchtop properties depend on substrate and construction.
01 Physical
Density HPL surface >= 1,350 kg/m? (laminate); substrate varies by board typekg/m³
Specific gravity >= 1.35 (laminate)
Porosity HPL surface: <2% (effectively non-porous); Substrate: 35-45% (sealed)%
Water absorption Surface: ≤0.1% (24hr immersion); Substrate: ≤8% thickness swell (24hr)%
Hardness Grade 3 scratch resistance; ≥350 Taber cycles (CS-10 wheels, 1kg load)
UV resistance Grade 4 colour fastness (AS/NZS 2924.2); ΔE<3 after 500hr xenon arc
Chemical resistance pH 2-12 extended contact; resistant to household chemicals per AS/NZS 2924.2
pH tolerance pH 2-12 (24hr contact); pH 1-13 (spot contact <10min)
Surface roughness Ra 0.2-10 μm depending on texture (matt: 5-10 μm, gloss: 0.2-0.5 μm)µm
02 Mechanical
Tensile strength >= 60 MPa (laminate, EN ISO 527)MPa
Compressive strength HPL: 160-180 MPa; Particleboard: 10-12 MPa; MDF: 15-18 MPaMPa
Flexural strength >= 80 MPa (laminate, EN ISO 178)MPa
Shear strength Interlaminar: 1.5-2.0 MPa; Substrate internal bond: 0.40-0.60 MPaMPa
Poisson's ratio 0.25-0.35
Impact resistance 800mm drop height (500g steel ball); 1.8-2.0 Nm (AS/NZS 2924.2)
Creep resistance Deflection <L/300 under sustained load at 23°C, 50% RH
03 Thermal
Thermal conductivity HPL: 0.25-0.30 W/m·K; Substrate: 0.10-0.15 W/m·KW/m·K
Specific heat 1,300-1,500 J/kg·KJ/kg·K
Thermal expansion 3.0 × 10⁻⁵ m/m/°C (longitudinal); 4.5 × 10⁻⁵ m/m/°C (transverse)×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility class Group 3 (standard); Group 2 (fire-retardant grades)
Fire resistance level Not fire-rated; substrate dependent performance
Ignition temp 276-298°C piloted ignition°C
Flame spread index 6-9 (AS 5637.1)
Smoke dev. index 2-4 (AS 5637.1)
Heat release rate 300-600 kW/m² peak (cone calorimeter)
05 Sustainability & Health
Embodied carbon Fossil: 6.23-9.40 kg CO2-e/m²; Biogenic: -14.73 to -20.5 kg CO2-e/m²
Carbon footprint Total: -8.5 to -11.1 kg CO2-e/m² (including biogenic carbon)
Embodied energy 227-243 MJ/m² (renewable: 124-133 MJ/m²; non-renewable: 103-110 MJ/m²)MJ/kg
Water footprint 15-25 L/m² manufacturing water consumptionL/kg
Recyclability Technically recyclable but limited facilities; energy recovery preferred%
Recycled content 10-30% pre-consumer; <5% post-consumer%
Renewable content 45-55% (wood fibre component)%
Circular score Level B - Responsible Products Framework (GBCA)
VOC emissions E0: ≤0.050 mg/m³; E1: ≤0.124 mg/m³ formaldehyde (AS/NZS 4266.16)
Toxicity rating Low toxicity; food contact approved grades available
LEED contribution MR credits: 1-2 points; EQ credits: 1 point (low-emission)
06 Durability · Cost · Logistics
Expected lifespan Residential: 10-15 years; Commercial: 8-12 years; Tropical: 8-10 years
Maintenance interval Daily cleaning; quarterly sealing inspection; annual professional check
Warranty period 7-10 years manufacturer warranty; 1-2 years installation warranty
Material cost (range) $100-400/m² (material only)
Material cost (per unit) $300-1200 per 3.6m × 0.6m sheet; $50-150/linear metre edging
Lead time Standard colours: ex-stock to 3 days; Custom: 2-3 weeks
Lifecycle cost $40-60/m²/year over 10-15 year lifespan
Annual maintenance $20-50/year (cleaning products and minor repairs)
Market availability Excellent - stocked nationally by Laminex, Polytec, Formica, Wilsonart
07 Assessment
Advantages
- Cost-effective at $200-600/m² installed vs $800-2000/m² for stone
- 400+ décor options with consistent colour matching
- Seamless post-formed edges eliminate moisture ingress points
- Lightweight enabling DIY installation potential
- Repairable for minor scratches and chips
- 10-15 year warranty from major manufacturers
- Immediate availability ex-stock for standard colours
- Chemical resistance pH 2-12 for household substances
- Thermal resistance to 180°C for kitchen applications
- AS 4386:2018 and NCC compliance certified
Constraints
- Visible seams in installations exceeding 3.6m lengths
- Permanent heat damage above 180°C threshold
- Cannot be resurfaced or refinished like solid surfaces
- Edge moisture vulnerability if sealing fails
- Limited to 300mm unsupported cantilevers
- Substrate swelling irreversible if water penetrates
- Not suitable for outdoor applications
- Group 3 fire rating restricts high-rise use
- Cannot achieve seamless integrated sinks
- 8-12 year lifespan in tropical climates
08 Applications
A1 Residential kitchen benchtops and splashbacks
A2 Commercial kitchen work surfaces (AS 4674 compliant)
A3 Office and reception desk surfaces
A4 Laboratory benchtops (chemical-resistant grades)
A5 Retail display and point-of-sale counters
A6 Healthcare facility work surfaces
A7 Educational facility desktops and benches
A8 Hospitality bar tops and servery counters
A9 Bathroom vanity tops (moisture-resistant substrates)
A10 Laundry benchtops and utility surfaces
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.