What Is UV Cure Acrylic Conformal Coating For Chip Level Protection
Conformal coatings have proved to be of great importance in keeping electronic circuit boards protected from harmful elements. When you choose the right coating for your electronic needs, you can rest assured that the devices will be working properly under all conditions.
Acrylic conformal coating is among the most common coatings used for PCBs. The coating is an easy one-part coating that cures fast and imparts dielectric properties, which are impressive, and offers much-needed protection against fungus, dust, and moisture. This conformal coating is popular because of its user-friendliness. It is not only easy to apply but also easy to remove, making repairs very easy too.
The acrylic coatings ted to cure and dry rapidly, reaching the optimum physical properties within minutes and fully within an hour. During curing, the coatings don't give off too much heat; hence, the potential of damaging heat-sensitive components is reduced. The extent of shrinkage during curing is also minimal, as well as the glass transition temperatures.
Acrylic conformal coating advantages
Like the rest of the conformal coatings, the acrylic coating offers excellent protection to circuits against dust and moisture, among other elements. However, it has the main advantage of being cost-effective, easy to use, apply, and rework. With this coating type, you also know that it will protect your board and components against fungus.
Acrylic conformal coating disadvantages
When looking at conformal coatings, you must also weigh the disadvantages. As for acrylic, its greatest downside is lacking chemical resistance. This coating will protect against fungus, dust, and moisture, but it does not have the crosslink density needed to protect against aggressive chemicals like fuel vapors. It makes it very important to check your application requirements when choosing conformal coatings so you can select the most suitable one that will serve your needs without fail.
Acrylic conformal coating removal
Whereas acrylics are thermoplastic resins that offer impressive strengths when used as protective coatings, they are not as strong against solvents. This can be a disadvantage in some areas, but it is also an advantage because removing it is easy; you can remove the coating with basic solvents like acetone.
Comparison with other conformal coatings
Compared with polyurethanes, acrylic's ability to cure rapidly fast makes it a win in most applications. Polyurethanes are, however, superior in protecting against solvents and abrasions. Both have excellent dielectric properties and are good at protecting against moisture.
Compared with silicone, acrylic does not struggle with adhering to substrates, as with silicone. Silicone, on the other hand, has superior protection against moisture, extended temperature limits, and low modulus making it a great conformal coating material.
Compared with epoxy, acrylic's one-part composition makes it more robust. You will only need thinning, whereas, for epoxy, you will require to go through a cumbersome process of measuring and mixing, as well as monitoring pot life. On the other hand, epoxies are durable because they are hard and resistant to solvents; it is why they are loved in marine, oil fields, and engine hoods.
The product has excellent weather resistance and has good adaptability to natural environment. Excellent electrical insulation performance, can avoid the reaction between components and lines, special water repellent, can prevent components from being affected by moisture and humidity, good heat dissipation ability, can reduce the temperature of electronic components working, and prolong the service life.
This product is a one component heat curing epoxy with good adhesion to a wide range of materials. A classic underfill adhesive with ultra-low viscosity suitable for most underfill applications. The reusable epoxy primer is designed for CSP and BGA applications.
Conductive silver glue products cured with high conductivity, thermal conductivity, high temperature resistance and other high reliability performance. The product is suitable for high-speed dispensing, dispensing good conformability, glue point does not deform, not collapse, not spread; cured material moisture, heat, high and low temperature resistance. 80 ℃ low temperature fast curing, good electrical conductivity and thermal conductivity.
Product Category: Low temperature curing epoxy adhesive
This series is a one-component heat-curing epoxy resin for low temperature curing with good adhesion to a wide range of materials in a very short period of time. Typical applications include memory cards, CCD/CMOS program sets. Particularly suitable for thermosensitive components where low curing temperatures are required.
The product cures at room temperature to a transparent, low shrinkage adhesive layer with excellent impact resistance. When fully cured, the epoxy resin is resistant to most chemicals and solvents and has good dimensional stability over a wide temperature range.
Acrylic glue non-flowing, UV wet dual-cure encapsulation suitable for local circuit board protection. This product is fluorescent under UV(Black). Mainly used for local protection of WLCSP and BGA on circuit boards. Organic silicone is used to protect printed circuit boards and other sensitive electronic components. It is designed to provide environmental protection. The product is typically used from -53°C to 204°C.
The product is a one-component damp-cured reactive polyurethane hot-melt adhesive. Used after heating for a few minutes until molten, with good initial bond strength after cooling for a few minutes at room temperature. And moderate open time, and excellent elongation, fast assembly, and other advantages. Product moisture chemical reaction curing after 24 hours is 100% content solid, and irreversible.
0
0
DeepMaterial
Best epoxy adhesive glue manufacturer in China, our adhesives are widly used in consumer electronic, home appliance, smart phone, laptop and more industries. our R&D team customizes glue products for customers to help customers reduce costs and improve process quality. Glue products are delivered quickly and ensure their environmental friendliness and performance.
English
