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Advances in Plastics

There have been considerable advances in the plastics industry with new plastic resins in development. Two resins that really resonate are COP and COC, Cyclo Olefin Polymers and Cyclo Olefin Copolymers. These new resins are remarkable for their low density, high transparency, high heat resistance, high chemical resistance, and low water and protein absorption properties […]

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PET vs. PETG: What is the difference?

What’s the difference between PET and PETG plastics? While the acronyms look almost identical with only one letter differentiating the two, their separate chemical properties and laboratory uses truly set these two plastics apart. PET, or ‘polyethylene terephthalate’, is a combination of two monomers. PETG is of the same chemical composition as PET but with […]

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Tips from the Glass Room: USP Type I vs. Type III Glass

Pharmaceutical glass containers are classified by a common standard set by the United States Pharmacopeia (USP). This standard regulates the chemical composition and chemical durability of the glass, or the glass’ ability to resist attack by the contents of the container. The two types of glass react differently when exposed to solutions and vapors depending […]

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Choosing the Correct Cap Liner

When choosing the correct container, experts typically know exactly what they are looking for and what they require for their applications. However, when choosing the closure, one small detail is often overlooked. The liner of a closure may seem like an insignificant matter, but it serves a very important purpose; to maintain the integrity of the container-cap […]

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Wheaton - Beyond the Glass
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