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About West
Careers
Investors
Locations
News & Events
Store
Contact Us
Blog

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West products promote the efficiency, reliability and safety of the world's pharmaceutical drug supply.
Vial Containment Solutions

Prefillable Systems

Self-Injection Platforms

Cartridge Systems and Components

Vial Adapter Systems

Specialty Components

Quality Enhancements
West Ready Pack™ System

Stoppers

NovaPure® Stoppers

West Ready Pack™ System

4040 LyoTec® Stoppers

Daikyo D Sigma® Stoppers

Daikyo® RUV and RSV Stoppers

Envision® Stoppers

FluroTec® Barrier Film Stoppers

LyoTec® Stoppers

Westar® Select Stoppers

4031/45 Westar® Select Stoppers for Animal Health

Westar® Stoppers

Seals

Seal Color Configurator

West Ready Pack™ System

DAIKYO PLASCAP® RUV Closures

Flip-Off® CCS Seals

Flip-Off® Plus RU Seals

Flip-Off® Seals

West Spectra™ Seals

Vials

West Ready Pack™ System

Daikyo® Crystal Zenith® Vials

SCHOTT adaptiQ® Vials

SG EZ-fill® Vials

AccelTRA® Components Program

Daikyo® Crystal Zenith® Polymer Ready-to-Use Syringe Systems

Daikyo® Crystal Zenith® Insert Needle Syringe Systems

Daikyo® Crystal Zenith® Ophthalmic Luer Lock Syringe

Syringe Components

NovaPure® Syringe Plungers

FluroTec® Plungers

Envision® Plungers

Westar® Select Syringe Plungers

Westar® Syringe Plungers

Rigid and Soft Needle Shields and Tip Caps

Accessories

Safety Systems

NovaGuard® SA Pro

AccelTRA® Components Program

SmartDose® On-Body Delivery System Platform (OBDS)

SmartDose® 3.5 On-Body Delivery System

SmartDose® 10 On-Body Delivery System

SelfDose™ Patient-Controlled Injector

NovaPure® Cartridge Components

Westar® Select Cartridge Plungers

Westar® RU and RS Cartridge Plungers

Westar® RU and RS Lined Seals

Vial Adapters

Vial2Bag Advanced® 20mm Admixture Device

Mix2Vial® Transfer Device

MixJect® Transfer Device

Washed Components

Sterilized Components

Films and Coatings

FluroTec® Barrier Film

B2-Coating

Vision Inspection

NovaPure® Components
Services
Services

West offers both Contract Manufacturing and Analytical Services to meet our customers needs
Analytical Services

West Contract Manufacturing

Integrated Solutions
Extractables and Leachables Analysis

Packaging and Device / Combination Product Testing

Particle Analysis

Container Closure Integrity

Fundamental Testing - West

DeltaCube™ Modeling Platform

Markets We Serve

Our Capabilities

Our Processes
Challenges
Challenges

Packaging and delivering sensitive materials is highly complex. West gives customers a solution by reducing time to market and single-source manufacturing.
Reducing Time to Market

Reducing Total Cost of Ownership

Packaging Solutions for Sensitive Molecules

Single Source Solution
Support
Support

West provides customers with industry-leading support for our customer's needs.
Company Impact Updates

Knowledge Center

Get a Product Recommendation

Fill-Finish Support Services

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Complaint Submission Form

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Request a Letter of Authorization China CDE

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Home
Products
Quality Enhancements
Films and Coatings
B2-Coating

B2 Coated Stoppers

B2-Coating

A innovative coating for elastomers

B2-Coating, developed by Daikyo Seiko, Ltd., is a cross-linked mixture of high- and low-molecular weight silicone oils that are cured through the application of UV rays and heat. Because it is a spray-on coating applied to molded closures before the trimming process, B2-Coating can be applied at various levels on the bottom and top of closures.

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Related Products

A close up image of lyophilized stoppers

Overview

Benefits of using B2-Coating on an elastomer product include:

A reduction in the amount of extracted silicone oil, particularly at higher pH levels
Lower levels of particle compared to conventional silicone oil

With the growth in protein-based and large molecule drug products, silicone oil sensitivities are increasingly common. B2-Coating is an alternative to conventional silicone oil for these applications and may reduce the amount of protein aggregation due to silicone.

Related Products

FluroTec® Barrier Film

Syringe Components

FluroTec® Barrier Film Components

FluroTec® Barrier Film

Prefilled Syringe Components

Syringe Components

FluroTec® is a registered trademark of West Pharmaceutical Services, Inc., in the United States and other jurisdictions.
B2-Coating and FluroTec technology is licensed from Daikyo Seiko, Ltd.

Vial Containment Solutions

Prefillable Systems

Self-Injection Platforms

Cartridge Systems and Components

Vial Adapter Systems

Specialty Components

Quality Enhancements

Analytical Services

West Contract Manufacturing

Integrated Solutions

Reducing Time to Market

Reducing Total Cost of Ownership

Packaging Solutions for Sensitive Molecules

Single Source Solution

Company Impact Updates

Knowledge Center

Get a Product Recommendation

Fill-Finish Support Services

Quality Support

Regulatory Support

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Vial Containment Solutions

Prefillable Systems

Self-Injection Platforms

Cartridge Systems and Components

Vial Adapter Systems

Specialty Components

Quality Enhancements

Services

Analytical Services

West Contract Manufacturing

Integrated Solutions

Challenges

Reducing Time to Market

Reducing Total Cost of Ownership

Packaging Solutions for Sensitive Molecules

Single Source Solution

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Get a Product Recommendation

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