Parylene coating has become increasingly popular for a wide range of applications due to its unique properties, including excellent moisture and chemical resistance, as well as its ability to provide a conformal coating that adheres to all surfaces of a substrate. One of the critical components of the Parylene coating process is the Parylene dimer.
What are Parylene Dimers?
A Parylene dimer is a chemical compound made up of two identical monomers that are chemically bonded together. The Parylene dimer is the precursor to the Parylene polymer, which is the actual material used to coat substrates. There are several different types of Parylene dimers, including Parylene C, N, and D, each with its own unique properties and characteristics.
Parylene C Dimers
Parylene C is one of the most commonly used types of Parylene, known for its excellent moisture and chemical resistance, as well as its high dielectric strength. Parylene C dimers are made from dichloro-di-para-xylylene monomers and are used in a wide range of applications, including medical devices, electronics, and aerospace components.
Parylene N Dimers
Parylene N is another popular type of Parylene, known for its excellent barrier properties and chemical resistance. Parylene N dimers are made from di-para-xylylene monomers that have an amine group attached to them, which gives the resulting polymer its unique properties. Parylene N is often used in the coating of sensors and other electronic components that require high-performance coatings.
Parylene D Dimers
Parylene D is a unique type of Parylene that is known for its excellent adhesion properties, making it an ideal choice for coating substrates that are difficult to coat with other materials. Parylene D dimers are made from di-para-xylylene monomers that have an additional chlorine atom attached to them, which gives the resulting polymer its unique properties. Parylene D is often used in the coating of medical devices and other critical components that require high-performance coatings.
Choosing the Right Parylene Dimer
Choosing the right Parylene dimer for your application is critical to ensuring the best possible results. Factors to consider when selecting a Parylene dimer include the substrate material, the intended use of the coated component, and the environmental conditions that the coated component will be exposed to.
Working with a trusted Parylene coating provider can help ensure that you choose the right Parylene dimer for your application and that the coating process is carried out to the highest possible standards.
Conclusion
Parylene dimers are an essential component of the Parylene coating process, and selecting the right dimer is critical to achieving the best possible results. With a range of different Parylene dimers available, each with its unique properties and characteristics, working with a trusted Parylene coating provider is essential to ensure that you choose the right dimer for your application and that the coating process is carried out to the highest possible standards.
Learn more about Advanced Coating's raw dimers
