We are proud to offer our advanced laminated stoppers coated with Teflon and various other films. They Provide excellent barrier properties, lubricity, cleanliness and enhanced quality, all of which contribute added quality to your packaged drug product. Teflon film presents an inert barrier and is unsurpassed at significantly reducing interaction between the drug and stoppers. Our advanced laminated stoppers are patented in Korea (No. 0247709).