Atactic Polypropylene Waxy Solid (PP306305)

Alternative and trade names
Atactic Polypropylene Waxy Solid (PP306305)


Atactic polypropylene (APP) is an amorphous, soft rubbery thermoplastic material which has the appearance of a viscous waxy paste. It is mostly used as a modifier in bitumen and adhesives.



Brookfield viscosity η‎‎b

240 Pa·s at 149 °C

Density ρ

0.85 g/cm³ at 20 °C

Molar mass M

12000 g/mol


Flash point Tflash

149 °C

Vicat softening temperature Tsoft

121 °C


Refractive index nd

1.47 [-]

Technological properties


Soluble in: Chlorinated hydrocarbons, diethyl ether, hydrocarbons, isoamyl acetate, toluene; Insoluble in more polar organic solvents with small hydrocarbon groups even at elevated temperatures.

This material data has been provided by Goodfellow.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.