Product

Frequently Asked Questions About PFAS-Free & Silicone-Free PPA Masterbatch for Polyolefin Extrusion | SILIMER 9701

1. What if my formulation requires a PFAS-free PPA without silicone or siloxanes?

Not all PFAS-free polymer processing aids are silicone-free. Some use silicone-based chemistry, which may not meet formulations with specific silicone or siloxane restrictions.

SILIMER 9701 offers a PFAS-free and siloxane-free PPA masterbatch option for such applications. Its suitability should be evaluated against the customer's chemical specifications, polymer formulation, and extrusion performance requirements.

2. Can SILIMER 9701 be used in PE blown film, PP extrusion, and other polyolefin applications?

SILIMER 9701 uses polyethylene (PE) as its carrier and is designed for compatible polyolefin extrusion applications, including PE blown film, monofilaments, fibers, pipes, profiles, and sheets.

3. What is the recommended dosage of SILIMER 9701, and how should it be added?

The general recommended addition level is 1–5 wt%. For initial evaluations focused on improving processing lubricity, reducing die build-up, or replacing fluorinated PPAs, 2–5 wt% is recommended.

SILIMER 9701 can be premixed with compatible raw materials before extrusion or incorporated during masterbatch production. These percentages refer to the SILIMER 9701 masterbatch as supplied, based on total formulation weight. The optimum dosage should be confirmed through production trials.

4. Can SILIMER 9701 directly replace my existing fluoropolymer-based PPA?

SILIMER 9701 can be evaluated as a PFAS-free and silicone-free alternative, but it should not be assumed to be a direct drop-in replacement for every fluorinated PPA.

For a meaningful comparison, maintain consistent resin formulations and extrusion conditions, allowing for appropriate purging and process stabilization. Key parameters include melt fracture clearance, die build-up over time, extrusion pressure, processing torque, and final product quality.

5. Will SILIMER 9701 affect film printing, lamination, or heat-sealing performance?

SILIMER 9701 is designed to improve extrusion processability while maintaining resin physical properties and supporting downstream printing, bonding, and heat-sealing performance.

For applications with specific converting requirements, comparative testing is recommended to assess print adhesion, lamination bond strength, heat-seal strength, coefficient of friction (COF), and other relevant film properties.

6. Should I choose SILIMER 9701 PPA masterbatch or SILIMER 9700 active processing aid?

The choice depends on the formulation requirements and preferred additive incorporation method.

SILIMER 9701 is a PE-carrier masterbatch suited to compatible extrusion processes where a pre-formulated additive format is preferred.

SILIMER 9700 is supplied in active additive form, offering greater formulation flexibility for compounders and masterbatch manufacturers.

Selection should consider carrier compatibility, effective processing aid concentration, feeding requirements, processing conditions, and targeted extrusion performance.