This blog post outlines the techniques required for the removal of HumiSeal UV cure conformal coating. The products covered in this article are:
- UV40, UV40-250
- UV50LV
- UV500, UV500LV
This blog post outlines the techniques required for the removal of HumiSeal UV cure conformal coating. The products covered in this article are:
Topics: Conformal Coatings, Humiseal, Micro Abrasion, conformal coating removal
HumiSeal® has been manufacturing its products in Pune, India for over eight years.Duringthistime we have significantly invested in our site--including manufacturing equipment, quality test equipment, and staff.
Our facility is now unmatched in its level of manufacturing equipment, technology, and product quality. Although the factory primarily supports the Indian market, it will also join our other manufacturing sites around the World to deliver manufacturing redundancy to our wider customer base around the globe as and when required.
Topics: Humiseal
Conformal coating is generally the last step in the PCB manufacturing process and the method of protection for all those valuable functional components, but it's not always that simple. Let's look at a fairly common scenario.
Everything was moving along fine through the design and testing process. You have begun production spraying and suddenly there are wisps of translucent webs floating in the air. Your taller components look like a scene from the movie Arachnophobia. This is the oft-dreaded cobwebbing effect; and while it may appear confounding and a little scary, it is often one of the simplest problems to eliminate when conformal coating.
In this brief article, we will discuss the likely causes of this odd situation and provide some simple solutions to get you back to applying your coating in a defect-free manner. Let's begin by exploring the phenomena in more detail.
If you're familiar with HumiSeal through our blogs, you know we are big fans of conformal coatings. This is for good reason; with advancing conformal coating technology, innovative LED and UV curable coatings offer incredible protection for a large range of applications.
Conformal coatings are just one method of circuit board protection available to engineers. Those involved with PCBs may be familiar with the terms encapsulation. Encapsulation is a tremendously powerful method to secure and protect PCBs by submerging them in a protective material. In many cases, this is more desirable than selectively applying conformal coatings.
Topics: Encapsulants, Protection for PCB
Bubbles. They can be a real challenge in any adhesive or coating, but they are particularly undesirable when covering electronics and printed circuit boards (PCBs) with fluid conformal coating material. The technical support engineers at Humiseal have over five decades of experience in support of PCB manufacturers. They report that bubbles within the finished film are the most commonly reported technical issue they receive.
In this brief article, we will discuss many of the causes as well as many potential solutions to the problem of entrapped bubbles.
Topics: Conformal Coating Troubleshooting, bubbles
Toluene and Xylene: solvents that have shown value and utility within the adhesives and coatings industries for decades. However, they often serve as a double-edged sword, offering superior solvent and drying capabilities but accompanied by some negative health and environmental impacts.
Topics: Aromatic Free, toluene
Before we look at conformal coating in the 21st Century, it is worth looking at how our industry has changed since the 20th Century and the effect these changes have had on reliability.
30 years ago, we had:
Fig. 1
Now move forward 30 years. In that time, surface mount components have been developed that are predominantly square with sharp edges, conductor spacing has been reduced, and packing densities have increased to levels never dreamt of in the past (see fig. 2).
Topics: Conformal Coatings, Sharp Edge
When conventional coating methods such as hand spray, total dipping or robotic selective coating don’t provide the protection required, there is always selective dip coating.
Selective dip coating is a process whereby the substrate rather than globally immerised in the coating, is discreetly coated in desired locales. The technique in one form or another, has been around for over 25 years and is used with both classic solvent-based coatings and 100% UV cure conformal coatings.
Topics: Conformal Coatings, Humiseal, Selective Dip Coating, Electronic Protection
It's no secret that conformal coatings increase the lifetime of electronic devices by providing a thin barrier that strengthens their ability to withstand harsh environmental conditions. That said, a lesser-known truth is adhesives and encapsulants provide a significantly higher level of protection on the entire assembly.
Why is that? Well, adhesives and encapsulants promote assembly protection by:
Bury it in
Topics: Electronic Protection, Adhesive Solutions, Vibration Suppression, Encapsulants
Counterfeit conformal coatings have infiltrated the electronics industry, posing a significant threat to device reliability. These counterfeit coatings may look like genuine products, but they lack the quality and protective properties required for electronic applications. Here are some reasons why counterfeit conformal coatings are causing failures:
Topics: Conformal Coatings, counterfeit
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