Conformal coating in all its forms is a delicate business. One aspect that is too often overlooked, and yet incredibly important, is the cleaning process. There are a lot of questions, uncertainties, and myths surrounding conformal coating cleaning, so today the parylene experts are here to set the facts straight.
The Cleaning Process
One of the most common questions about conformal coating cleaning is whether or not a specific application requires cleaning at all. Unfortunately, the answer can get complicated and relies heavily on the specifications of the job itself. Generally speaking, when safety and long-term life are critical, it's best to do some cleaning. There are a variety of techniques available to test a surface before coating, like Surface Insulation Resistance testing, and this can help determine which contaminants you're up against and how much cleaning is necessary. However, these techniques can be expensive--and when it comes to conformal coating cleaning, you're better safe than sorry.
Conformal Coating Cleaning Tips
What do you need to know about conformal coating cleaning? Let our experts provide some handy tips!
The risks of skipping cleaning. Before you can decide how crucial cleaning is for your conformal coating job, you need to know the risks involved in not cleaning. Potential problems include adhesive failure which means you'll have to rework the entire project, which can be time-consuming, expensive, and frustrating.
It's not always necessary. While cleaning is recommended, it's not always strictly necessary. It is possible to create an environment controlled enough to allow for successful adhesion without cleaning; it's crucial, however, that gloves be worn at all times, the surface never be touched, and that the surface itself is naturally clean and of good quality.
Cleaning needs are unique. The thing about conformal coating is that it has applications just about everywhere, so there is no cut-and-dry handbook for every specific job. This means that cleaning needs are unique to the job, the goals, and more. It's best to contact conformal coating experts for help in deciding what's best for your job.