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Spectabio TR45MB Rice Husk Blend

biopolymer compound

injection molding

 general description

Spectabio TR45MB are biopolymer compounds. Spectabio TR45MB Rice Husk Blend is directly filled with 45 w.-% of mainly rice husk and other biomass. The material can also be filled with bamboo powder, rice or coffee husk, wheat straw, wood powder or any suitable 2nd/3rd generation biomass under Mottainai 5.0.

Spectabio TR45MB is designed to be completely biodegradable & compostable (microbial and enzymatic degradation) in the targeted disposal environment; it is biodegradable both in controlled (e.g. industrial compost factilities) and in non-controlled (e.g., soil, home-compost, landfill) conditions. The grade offers a significant reduction in carbon footprint compared to traditional fossil-based plastics.

The material exhibits good impact and elongation properties.

Part wall-thickness shall be greater than 1.75 mm.

 basic characteristics

biomass blend

compound base


rice husk

> 60% bio-based

compound color

dark natural, speckled


biodegradable (all conditions)

agriculture, gardening and forestry products, e.g., planter pots, bug traps

 technical data (TDS)


1.23 g/cm3

MFI (190°C/2.16 kg)

9.4 g/10 min

HDT-B (@ 0.46 MPa)

64.5 °C

melting point

120 °C

tensile strength 

10.6 MPa

tensile modulus


13.6 MPa

flexural strength

0.5 GPa

flexural modulus

16.1 %

elongation @ yield 

elongation @ break 


shore hardness

impact IZOD (notched)

64.6 J/m

material shrinkage

0.4 %

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

Spectabio TR45MB Rice Husk Blend

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