Blog

How To Create Your Own Internal Conformal Coating Test Standard

How do you select and test a conformal coating that is right for your specific application? Or maybe you would like to create your own test specification due to any special characteristics of your device’s operating environment? Or depending on your geographical location, you may also be required to use a different testing specification that is dictated by local authorities.

A widely used...

Read more

Easy Steps to Avoid Silicone Conformal Coating Wrinkling

A common defect that HumiSeal technical support deals with on regular basis is the wrinkling of high solids RTV silicone conformal coatings. If you are or have struggled with this issue in the past, this blog post will help you understand why this might be happening and what to do to correct it.

Read more

3 Simple Solutions to Avoid Cobwebbing in your Application

So, you’ve spent a considerable amount of time setting up your conformal coating process only to observe the dreaded cobwebbing effect once you start applying the material. Well, in this blog post, I’m going to run through the common root causes and provide some simple solutions you can take to get you back to applying your coating in a defect free manner.

Read more

Counterfeit Conformal Coatings are Costly for Everyone

The counterfeit of electronic materials is nothing new in the industry. There are numerous sources of these fraudulent practices and they come in various forms. However, the most important aspect is the cost that these forged coatings have on users.

It is known and well documented that in today’s electronics industry there are some PCB board components that may come from manufacturer scraps,...

Read more

Discovery of HumiSeal’s Ideal Customer

Dear customer, thank you for many years of patronage and for your continuous support to HumiSeal conformal coating products. To celebrate you, the customer, we would like to share some findings of our internal survey. The objective was to find the characteristics of our ideal customer, those whom we have had the most success. 

Read more

Three Simple Steps to Calibrate UV Oven

Have you ever wondered if your UV oven is performing up to specification?   Has your UV curable conformal coating come out of the oven tacky?  Today I’d like to take a few minutes to write about the importance of calibrating your UV oven to ensure you are getting the most out of our UV conformal coatings.  Setting up and optimizing your UV oven is a simple process that can be accomplished in...

Read more

An Effortless Approach to Eliminate Bubbles in Conformal Coating Through Solvent Type and Product Selection

Hello Again!  The last time we discussed bubbles in conformal coating, I wrote how to resolve process related root causes.  There are other simple ways to reduce the amount of bubbles:

  • by varying the types of solvents used in a product
  • by using a product that contains a surface tension modifier, hence increasing the rate at which bubbles burst.

If you recall, most of the bubbles are...

Read more

How to Achieve Long Term Conformal Coating Thermal Shock Resistance – It’s All About Selection!

Does your conformal coating require long term thermal shock testing?   Do you struggle to overcome cracking and adhesion loss with your current conformal coating after 1000 thermal shock cycles?   With the drive for increasing functionality for end devices, and increased life cycles being placed on all electronic assemblies, the need to have materials endure more stringent testing becomes...

Read more

Synthetic Rubber Conformal Coatings, Industry's Best Kept Secret, Until Now!

What is so special about synthetic rubber conformal coatings?   Why do many high reliability applications require synthetic rubber?  Would synthetic rubber be a better fit for your application?  Synthetic rubber copolymer provides higher operating temperature and exhibits superior mechanical properties compared to traditional materials. The products have been developed to withstand the...

Read more

Easy Techniques to Abate Conformal Coating Wicking

Have you ever experienced uncontrolled conformal coating migration?   Have you had to strip your recently coated boards because conformal coating wicked into non-desired keep out zones?   Wicking is a phenomenon caused by a combination of low surface tension coating, which is usually characterized by low viscosity, coupled with strong capillary forces generated by low standoff gaps possessed...

Read more