Biosoft 750

BIOSOFT 750 is a high-viscosity renewable plasticizer developed for demanding rubber applications. It is produced by controlled polymerization of rapeseed oil, resulting in significantly increased viscosity while retaining the beneficial characteristics of natural oils. The product improves elasticity, internal cohesion, and filler interaction in rubber compounds. Rapidly biodegradable (> 60% OECD 301D).

FAQ – BIOSOFT 750

What is BIOSOFT 750 mainly used for?

BIOSOFT 750 is used as a plasticizer and viscosity modifier in rubber formulations where higher viscosity and improved compound stability are required, such as tire compounds and technical rubber goods.

Which rubber types are compatible with BIOSOFT 750?

The product is compatible with a wide range of elastomers, including NR, SBR, and EPDM, and is particularly suitable for highly filled or heavy-duty rubber compounds.

What distinguishes BIOSOFT 750 from low-viscosity plasticizers?

Thanks to its very high viscosity (675–825 mm²/s), BIOSOFT 750 provides enhanced thickening, improved filler binding, and better cohesion within the rubber matrix compared to conventional low-viscosity plasticizers.

How does BIOSOFT 750 influence rubber compound performance?

BIOSOFT 750 improves compound cohesion, elasticity, and filler dispersion due to its very high viscosity. It contributes to better mechanical stability and processing behavior, especially in highly filled or heavy-duty rubber formulations.

Which packaging sizes are available?

Available packaging: 1 L, 5 L, 10 L, 20 L, 60 L, 200 L, 1000 L.

Documents

Technical Data Sheet (TDS) – (download)
Safety Data Sheet (SDS) – available on request

Parameters

Density at 15 °C	0,945 – 0,995 g/cm3
Kin. viscosity at 40 °C	The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. 675 – 825 cSt
Pour Point	The pour point of a liquid is the temperature below which the liquid loses its flow characteristics. < -15 °C
Flash Point	The lowest temperature at which enough vapor escapes from a heated sample above its surface into the air that the resulting mixture of vapor and air ignites when an auxiliary flame is brought close to it and then extinguishes again. > 220 °C
Biodegradability in 28 days	Biologically sufficiently rapid decomposition of oil without effect on fauna and flora. Biological decomposition monitored by dissolved oxygen analysis over 28 days. > 60 %
Acid number	< 12 mg KOH/g

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Usage

Industry

Pack size

1 l

5 l

10 l

20 l

60 l

200 l

1000 l