How often can we reuse the conformal coating masking boots in our process?

The number of times a masking boot, cap or plug is reusable is dependent on a number of factors including:

1. The conformal coating process
2. The complexity of the boot
3. The thickness of the wall of the boot
4. The conformal coating material used
5. How tight you require the boot to fit

The conformal coating process
If you require a tightly fitting gasket seal for processes like dipping or parylene coating you may not be able to use the boot more than 1-2 times. This is because the seal has to be perfect. But, for typical spray coating processes most boots can be reused 20-50 times. In fact, we have some boots that have never been replaced and still in use in our coating service that have probably been used over 400-500 times. They last a long time.

The complexity of the boot
The more complex the boot the more likely it will get damaged. A simple molex connector or cap box will be more durable than a three piece boot which is connected together purely down to operator handling

The thickness of the wall of the boot
All of the boots are custom made so we can vary the thickness of the walls. However, the thinner we make them the more likely they will get damaged eventually. The balance to this as that if the walls are too thick you get shadowing effects around the component and it may not fit in around tightly packed PCBs.

The conformal coating material used
Some solvents could react with the silicone boot. In reality very few do and 99% of conformal coatings are perfectly fine with the boots. But, if in doubt, check.

How tight you require the boot to fit
If you want a tight fitting boot then it makes sense that the boot will stretch with use when pulled off and pushed on. If you don’t need it tight then we can design it this way.

Click conformal coating masking boots, plugs, and caps for further information

or use the links below

Where are Conformal Coating Masking Boots Used?

How are Conformal Coating Masking Boots Used?

Why Use Conformal Coating Masking Boots?

What Types of Masking Boots are Available from SCH?

What if you want to find out if SCH have your custom boot or you would like to have boots made?

What Conformal Coating Materials can be used with the Masking Boots?

How often can we reuse the conformal coating masking boots?

What is the temperature limitation of the conformal coating masking boots?

How can a conformal coating masking boot leak?

Is it easy to peel the boot off from the PCBA after the conformal coating and curing process and will there be an impact on the coating surface?

How do I clean and maintain my conformal coating masking boot?

What is the thickness of the masking boot walls?

Advertisements

Tags: , , , , , ,

About Dr Lee Hitchens

Dr Hitchens has been working in the electronics industry and the area of conformal coatings for over 25 years in various areas including sales and technical support. He has also been training people for almost the same amount of time in all areas of conformal coating whether that is materials & equipment selection, process development or troubleshooting to help them solve their particular problem. Recently, he decided that the industry needed a specific place where all of the useful knowledge on conformal coatings could be collated for users to find easily and use in their own production process. So, Nexus was born and he began the Nexus eBook project.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: