R320
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Regular Expandable Polystyrene
Bead Size – Diameter 0.7 – 1.0 mm
Blowing Agent – Pentane >5.6 %
Residual Styrene Monomer Less than 1000ppm
Moisture Content Less than 0,4%
CFC Content Nil
Density 14 – 25 kg/m³
R420
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Regular Expandable Polystyrene
Bead Size – Diameter 0.4 – 0.7 mm
Blowing Agent – Pentane >5.6 %
Residual Styrene Monomer Less than 1000 ppm
Moisture Content Less than 0,4%
CFC Content Nil
Density 18 – 30 kg/m³