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Spectadur PB30MB Rice Husk Blend


injection molding

 general description

Spectadur PB30MB grades are advanced compounds that deliver improved impact properties combined with enhanced strength and stiffness values. The material is UV/AO stabilized.
Standard grades are built on 30 w.-% mechanically extracted (no chemicals used) rice husk, taken directly from a local rice mill. Rice husk replaces 30% of virgin PP. Plants absorb atmospheric carbon dioxide (CO2) as they grow. Using biomass to create products turn these constitutes into an effective CO2 storage resulting into a more permanent removal of CO2 from the atmosphere.
Part wall-thickness shall be greater than 1.75 mm.
All Spectadur grades are delivered in natural, speckled color; they can be delivered according to customer color specifications or can be blended with any traditional color masterbatch during part manufacturing.

 basic characteristics

biomass blend

compound base


rice husk


compound color

natural, speckled



general purpose, medium wall-thickness, houseware, petware, garden & agriculture

 technical data (TDS)


0.99 g/cm3

MFI (190°C/2.16 kg)

23.8 g/10 min

HDT-B (@ 0.46 MPa)

121 °C

melting point

162 °C

tensile strength 

27.6 MPa

tensile modulus


38.5 MPa

flexural strength

2.1 GPa

flexural modulus

8.8 %

elongation @ yield 

elongation @ break 

8.9 %

shore hardness

impact IZOD (notched)

39 J/m

material shrinkage

0.8 %

Test Methods: ASTM D1238, ASTM D648, ASTM D638, ASTM D790A, ASTM D638, ASTM D256, ASTM D2240; typical values; all mechanical properties as per ASTM D638 Type I specimen, injection molded in accordance with AST; D4101.

products made with

Spectadur PB30MB Rice Husk Blend

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