Silicone Powder: Revolutionizing PPS Plastic Applications

May 30 14:30 2024


Silicone powder, also known as silica powder, has been making waves in the world of plastics engineering. Its unique properties and versatility have led to its widespread application in various plastic materials, including PPS (polyphenylene sulfide). In this blog, we will delve into the revolutionary impact of silicone powder on PPS plastic applications, exploring its benefits, challenges, and future prospects.

Improved Flowability and Moldability

Silicone powder also plays a crucial role in enhancing the flowability and moldability of PPS plastic during the processing stage. By reducing the melt viscosity and improving the flow behavior, silicone powder allows for easier filling of intricate mold cavities, resulting in the production of complex and high-precision PPS parts. This is particularly beneficial for industries such as automotive, aerospace, and electronics, where intricate PPS components are in high demand.

Chemical Resistance and Surface Finish

Incorporating silicone powder into PPS plastic imparts excellent chemical resistance, making the material suitable for applications where exposure to harsh chemicals or solvents is a concern. Furthermore, the addition of silicone powder can improve the surface finish of PPS components, reducing the need for secondary finishing processes and enhancing the overall aesthetics of the final products.


Future Prospects and Innovations

As the demand for high-performance plastics continues to grow across various industries, the future prospects of silicone powder in PPS applications look promising. Ongoing research and development efforts are focused on further enhancing the compatibility and dispersion of silicone powder in PPS, as well as exploring novel surface modification techniques to tailor the properties of PPS plastic for specific applications. Furthermore, the integration of silicone powder with other advanced additives and fillers is expected to unlock new possibilities for achieving multifunctional PPS materials with tailored properties.

SILIKE silicone powder, worth choosing high quality silicone powder additives

Silicone powder ( Siloxane powder ) LYSI series is a powder formulation which contains 55~70% UHMW Siloxane polymer dispersed in Silica . Suitable for various applications like wire&cable compounds, engineering plastics, color/ filler masterbatches…

Compare to conventional lower molecular weight Silicone / Siloxane additives,like Silicone oil, silicone fluids or other type processing aids, SILIKE Silicone powder is expected to give improved benefits on processing proopertise and modify the surface quality of final products, eg,. Less screw slippage , improved mold release, reduce die drool, a lower coefficient of friction, fewer paint and printing problems, and a broader range of performance capabilities.What’s more, it has synergistic flame retardancy effects when combined with aluminum phosphinate and other flame retardants.

SILIKE Silicone powder LYSI-100A is a powdered formulation with 55% ultra high molecular weight siloxane polymer and 45% silica . It is recommend to be used as processing aids in various thermoplastic formulations such as halogen free flame retardant wire&cable compounds , PVC compounds , engineering compounds, pipes, plastic/filler masterbatches, etc.

Advantages of SILIKE Silicone Powder LYSI-100A


(1) Improve processing properties including better flow ability , reduced extrusion die drool , less extruder torque , better molding filling & release

(2) Improve surface quality like surface slip, lower Coefficient of friction

(3)  Greater abrasion & scratch resistance

(4) Faster throughput , reduce product defect rate.

(5) Enhance stability compare with traditional processing aid or lubricants 

(6) Slightly increase LOI and reduce heat release rate , smoke ,and carbon monoxide evolution


SILIKE Silicone Powder LYSI-100A Application Areas

For PVC,PA, PC, PPS high temperature engineering plastics, can improve the flow of the resin and processing properties, promote the crystallization of PA, improve the surface smoothness and impact strength.

For cable compounds, obvious improve processing properties and surface finish .

For PVCfilm/sheet to improve surface smooth and processing properties.

For PVC shoe’s sole , improve abrasion resistance.


In conclusion, silicone powder has emerged as a game-changer in the realm of PPS plastic applications, offering a myriad of benefits ranging from enhanced thermal and mechanical properties to improved processability and surface finish. While challenges exist in optimizing its dispersion and loading levels, ongoing innovations and research efforts are paving the way for the continued evolution of silicone powder-enhanced PPS plastics. As industries continue to seek high-performance materials, silicone powder is poised to play a pivotal role in shaping the future of PPS applications, driving advancements in technology, sustainability, and product innovation.

SILIKE silicone powder as a high-performance processing aids, a wide range of applications, can bring good processing performance and surface properties for modified plastics, are you looking for a suitable silicone powder additives, choose SILIKE silicone powder, can bring you a big surprise, see more product information you can browse our website: Or you can send an email to us, we are willing to provide you with your exclusive processing solutions!

Contact us Tel: +86-28-83625089 or via email: [email protected]

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Company Name: Chengdu Silike Technology Co.,Ltd.
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