Using conformal coating masking boots in protecting printed circuit boards (PCBs) from application errors is a low cost, highly reliable solution and applies both for parylene and liquid conformal coating processes.
The use of other materials such as masking tapes, dots and liquid latex can be an effective process in protecting components from ingress of conformal coating. However, the application of the masking can be labour intensive, especially in higher volume applications. Therefore, recyclable masking boots can offer a labour saving alternative in both the masking and de-masking stages of the coating process.
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Conformal coating masking boots
1. Conformal Coating Masking Boots
Masking boots are an integral part of a full masking solution in coating applications for printed
circuit boards, whether this is for a liquid conformal coating process or a vapour deposition
process such as parylene.
Many components and parts on a printed circuit board must remain uncoated from conformal
coating. The purpose of the masking boots is to provide easy to use covers instead of alternative
materials like masking tape and dots to prevent coatings going into the wrong areas.
Where Are Conformal Coating Masking Boots Used?
Our masking boots provide protection for many different types of
components for all conformal coating application techniques. These
processes include batch and selective robotic spraying (as an
alternative to difficult technical programming), vertical and horizontal
dipping and vapour deposition of coatings such as parylene.
2. What Types of Masking Boots are Available from SCH?
SCH can provide both standard and custom boots solutions for a
customer depending on their needs.
SCH already have a wide range of custom boots and designs within
stock or ready to manufacture. We can quickly match these to your
needs. If this is not possible then we help develop a custom solution
through our design services to help you get the protection you need
in your conformal coating process.
The key is to determine the best Return on Investment (ROI) when
using masking boots for the customer for their particular
application.
How are Conformal Coating Masking Boots Used?
They are used by applying them over the components such as
connectors, plugs and sockets that require protection from the
conformal coating applied. They can be simple boots that fit over
the top of a connector or a more sophisticated design which wraps
around a device and fastens together.
What would happen if I don't mask a component or my circuit
board correctly?
The simple answer is the conformal coating is likely to go where you
don't want it to. This will lead to the obvious step of either repairing
the leak, stripping the conformal coating off the circuit board,
removing a component to replace it or scrapping the board.
What Conformal Coating Materials can be used with the Masking
Boots?
SCH Technologies offer:-
The masking boots are compatible with the full range of conformal
coating materials and solvents including all of the parylene
compositions and the liquid conformal coatings like acrylics,
polyurethanes, silicones and epoxies. The boots are generally made
of silicone rubber but alternative materials can be used depending
on the application.
ďˇ Global supply of Conformal Coating
Application Equipment
ďˇ Global Subcontract Coating Services
ďˇ
Process Materials including Coatings
ďˇ Conformal Coating Training courses
ďˇ Conformal Coating Consultation &
troubleshooting
PLEASE CHECK OUR WEBSITE FOR DETAILS
SCH reserves the right to make design changes to
products to improve their function. These changes
may occur between publishing.