Reinforcement type

${\rho }_a$ Kg/m³

${\rho }_{\exp }$ Kg/m³

${\rho }_{an}$ Kg/m³

Pure polyester

1140

1140

1140

Short fibers

1038

1037

1135.5

Long fibers

1086

1058

Particles ≤ 800 µm

1186

1408

1183.5

Particles ≥ 1.6 mm

1295

1284