2.Properties of HPL
Table 1: Physical properties
| Physical state | Solid |
| Bulk density | ≥ 1,35 g/cm3 |
| Solubility | Insoluble in water, oil, methanol, diethyl ether, n-octanol, acetone |
| Boiling point | None |
| Outgassing | None |
| Melting point | None |
| Calorific value | Approx. 18 – 20 MJ / kg |
| Heavy metals | HPL contains no toxic compounds based on antimony, barium, cadmium, chromiumIII, chromiumIV, lead, mercury or selenium |
| Stability and Reactivity | HPL is not considered to be reactive or corrosive |
| Hazardous reactions | None |
| Incompatibility | Strong acids or alkaline solutions will damage the surface (descalers) |
| Ignition temperature | Approx. 400 °C |
| Flash point | None |
| Thermal decomposition | Possible above 250 °C |
| Smoke and toxicity | HPL is classified as F2 in accordance with NF F 16101. Toxic gases (primarily carbon monoxide, carbon dioxide and ammonia) may be emitted depending on the burning conditions (e. g. temperature, oxygen content) |
| Flammability | HPL is classified as non-flammable and will only burn in the presence of open flames |
| Extinguishing media | HPL is categorised as Class A. Carbon dioxide, water spray, dry chemical foam can be used to extinguish flames. Water suppresses and prevents flames being rekindled |
| Explosion hazard | The processing of HPL through sawing, sanding and routing produces Class ST-1 dust. Standard safety precautions and adequate ventilation must be provided |
| Explosion limit | The dust concentration should be below 60 mg/m3 |
| Protection against explosion and fire | HPL must be treated as a wood-based material |
| Fire classifications as per EN 13501 | Standard and postforming quality D-s2, d0 or better flameretardant quality either B-s2, d0 or rather C-s2, d0 or better (classification depends on material thickness) |
| Working areas | The usual safety precautions for minimising dust accumulation must be applied |
| Formaldehyde release | < 0.4 mg/h m2 as per EN 717-2, < 0.05 ppm as per EN 717-1 |
| Pentachlorophenol / Lindane | HPL contains no PCP (pentachlorophenol) or Lindane |
| Miscellaneous | HPL is an article and not a chemical substance and therefore REACh does not apply |
In addition, the values and information recorded in EN 438 apply to HPL.
