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Dow Corning Siloxane Masterbatches are pelletized micro-dispersions of special
ultra high molecular weight siloxane polymers, in various different plastic
carrier resins at loadings of up to 50%.
Siloxane Masterbatches are produced in solid form for ease of use. They
typically contain 25 - 50% ultra high molecular weight siloxane polymers (>15
million cSt) dispersed with an average particle size of 5 microns in various
thermoplastics.
The siloxane polymer component of the Siloxane Masterbatches eliminates
blooming as well as migration of fluids and other organic plastic additives,
which can occur when using lower molecular weight silicone materials.
These unique masterbatches are typically used:
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to modify the surface of finished plastic parts for friction management
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to improve mar resistance and wear resistance
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as process aids to increase melt flow for cycle time reduction
Low concentrations (0.1 - 1.0%) of these siloxane masterbatches offer:
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increased compounding efficiency
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improved polymer flow and mold filling
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cycle time reduction
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lower extruder torque
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easier mold release
Concentrations of 1% to 5% siloxane can provide significantly improved surface
properties, including better lubricity, gloss and slip, and improved mar
resistance and scratch resistance. The masterbatch can significantly reduce
the coefficient of friction of a polymer without affecting post-finishing
operations such as printing, plating, and painting.
How To Use Siloxane Masterbatches
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