Medical & Healthcare Plastics

Low-Migration Silicone Additives for Medical & Healthcare Plastics

Medical device and healthcare packaging plastics face the strictest additive rules in the industry: nothing can migrate, nothing can leach, and every batch must be consistent. Xiangxi's carrier-free silicone masterbatches and powders provide processing and surface improvements for PP syringes, diagnostic device housings and healthcare packaging — with low-migration, non-precipitating chemistry designed to support REACH, RoHS and FDA expectations.

Key Challenges in Medical Plastics

• Zero-migration expectations — conventional lubricants and silicone oils can leach or bloom, a risk for drug and patient contact.
• Sticky processing of medical PP/PE — syringe barrels and thin-wall containers need easy release without surface agents that transfer.
• Consistency and traceability — device manufacturers need stable batches and complete documentation.
• Compliance documentation — REACH, RoHS and FDA-related declarations are required for audits.
• Surface quality — device housings need anti-scratch, low-friction surfaces that survive sterilization handling.

Recommended Xiangxi Solutions

1. Carrier-Free Silicone Masterbatch & Powder

The carrier-free silicone series uses ultra-high molecular weight siloxane with no carrier resin: after dispersion, it stays fixed in the polymer matrix — no precipitation, no migration across the product's lifetime, making it a strong candidate where low-migration additives are required.

2. Silicone Masterbatch for Thin-Wall Medical Containers

Improves melt flow and demolding of syringes, specimen cups and thin-wall medical containers — shorter cycles and fewer defects with minimal additive loading.

3. Anti-Scratch & Low-Friction Surface Systems

For device housings, wand handles and diagnostic equipment parts, our systems deliver anti-scratch, low-friction surfaces that withstand handling and disinfection wipes.

Typical Applications

Why Medical Manufacturers Choose Xiangxi

Xiangxi New Material, founded in 2016 in Xiamen, China, is a national-level high-tech enterprise with ISO9001-managed production, 8+ lines, 20,000+ tons/year capacity and 28+ patents. Our non-migrating silicone technology supports REACH and RoHS compliance programs and FDA-related material expectations, with batch consistency, full documentation (TDS/SDS/declarations) and technical support for your regulatory files.

FAQ — Medical & Healthcare Plastics

Why is carrier-free silicone preferred for medical applications?

It contains no extra carrier resin that could introduce unknown components, and the high molecular weight siloxane does not migrate — reducing extraction and leachable risks compared with silicone oils or low-molecular additives.

Can the additive survive sterilization processes?

Yes. The siloxane is thermally and chemically stable, performing consistently through common sterilization and disinfection handling of finished parts.

What documentation do you provide for regulatory review?

TDS, SDS and compliance declarations for REACH/RoHS, plus batch consistency data — supporting your device master file and audit needs.

Discuss your medical project with our technical team — contact Xiangxi for documentation and samples.