PFAS-Free And Fluorine-Free Polymer Processing Aids(PPA) SILIMER 9406 for Polypropylene Film Extrusion

SILIMER 9406 is a PFAS-free polymer processing additive (PPA) developed by SILIKE for the extrusion of polypropylene (PP) materials. Based on a PP carrier, it is an organically modified polysiloxane masterbatch designed to migrate to the processing interface during extrusion. It leverages the excellent initial lubricity of polysiloxane and the polarity of functional groups to enhance processing performance. Even at low dosage levels, SILIMER 9406 effectively improves melt fluidity and processability, reduces die drool, and alleviates shark skin defects. It is widely used to enhance lubrication and surface quality in plastic extrusion applications. As a safer, fluorine-free alternative to traditional fluoropolymer-based PPAs, Fluorine-Free Polymer Processing Aids SILIMER 9406 supports both performance optimization and environmental compliance.

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Description

SILIMER 9406 is a PFAS-free polymer processing additive (PPA) for extrusion of Polypropylene material with PP as the carrier launched by SILIKE. It is an organic modified polysiloxane masterbatch product, which canmigrate to the processing equipment and have an effect during processing by taking advantage of the excellent initial lubrication effect of polysiloxane and the polarity effect of modified groups.

A small amount of dosage can effectively improve the fluidity and processability, reduce die drool during the extrusion and improve the phenomenon of shark skin, widely used to improve the lubrication and surface characteristics of plastic extrusion.

Product Specifications

Grade	SILIMER 9406
Appearance	Off-white pellet
Carrier	PP
Dosage	0.5~2%
MI（190℃，2.16kg）g/10min	5~20
Bulk density	0.45~0.65g/cm³
Moisture content	<600PPM

Application advantages

• Improves melt flow and extrusion stability in PP film processing

• Helps reduce melt fracture (sharkskin), die drool, and die build-up

• Supports smoother and more uniform film surfaces

• Helps improve overall processing consistency and film quality

• Provides a PFAS-free and fluorine-free alternative to conventional fluoropolymer PPAs

• Supports film appearance and printability under recommended use conditions

Applications

• PP film extrusion

• CPP and other cast polypropylene films

• Multilayer PP film structures

• Metallized PP film applications

• PP film applications requiring improved extrusion stability and melt-fracture control

• Other PP-compatible extrusion applications, including pipes, wire & cable compounds, color masterbatch, and artificial grass, may be evaluated based on formulation, processing conditions, and target performance.

How to use

Premix SILIMER 9406 with the compatible PP resin at the recommended let-down ratio and process using standard extrusion equipment. The optimum addition level should be determined according to the resin formulation, processing conditions, and target performance.

Dosage

Recommended addition level: 0.5–2 wt% for improving processing performance and helping control melt fracture, melt lines, and die build-up; 5–10 wt% when additional reduction in film-surface friction and enhanced slip performance are required. The optimum dosage should be determined according to the resin formulation, processing conditions, and target performance.

Transportation & Storage

This product could be transported as a non-hazardous chemical. It is recommended to be stored in a dry and cool area with a storage temperature below 50 ° C to avoid agglomeration. The package must be well sealed after each use to prevent the product from being affected by moisture.

Package & Shelf life

The standard packaging is a craft paper bag with PE inner bag with net weight of 25kg. Original characteristics remain intact for 24 months from the production date if kept in recommend storage.

PFAS-Free PPA Technical Support & Sample Evaluation

Experiencing melt fracture, die build-up, or unstable processing in PP film extrusion? Contact SILIKE to evaluate a PFAS-free PPA solution for your formulation and processing conditions.

Contact: Ms. Amy Wang
Email: amy.wang@silike.cn
WhatsApp / Mobile: +86 151 0828 0799

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