Acrylic resin (AR) conformal coatings are one of the most common conformal coatings used today. The coatings are single-component materials; more specifically, they are pre-formed acrylic polymers that are dissolved in a solvent to be applied to surfaces.
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Acrylics provide an excellent barrier to both moisture and humidity and have good fungus resistance; these properties are why acrylic coatings are so frequently used on electronic circuitry. Acrylics conform to an electronic device&#;s shape, protecting the entire surface from moisture, electrical and physical issues, including gases, UV exposure, humidity, condensation and liquid. In addition, the coatings give off minimal to no heat during the curing process, which is beneficial for heat-sensitive electronics.
Acrylics are also nonconductive to withstand static discharge. These dielectric properties are advantageous for printed circuit board (PCB) applications since the coating can enhance the product&#;s capabilities by way of miniaturization; that is, board components and traces can be designed close together so that electrical components are as small as possible, allowing more components and capabilities per board assembly.
Acrylic resins can be easily applied using one of three methods:
Post-coating, Acrylics dry to the touch within 10 minutes and typically cure completely within 24 hours at room temperature. Cure times can be decreased using thermal cure processes. Unlike epoxies, acrylics do not shrink during the cure process, and they give off little to no heat.
Due to their low chemical resistance, acrylics are ideal when components need to be removed or reworked with high frequency.
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Specialty Coating Systems offers customers regionally-located coating facilities to handle their engineering and production requirements. To discuss the benefits and properties of conformal coatings and your protection needs with an applications specialist, contact us online or call +1.317.244..
If you know anything about Gellner industrial, you&#;ll know acrylic polymers are our bread and butter. But how much do you actually know about acrylic polymers? It is not something that comes up in normal conversation, but here at Gellner Industrial, it comes up all the time! In this blog post, we will describe, in layman&#;s term exactly what an acrylic polymer is, what we use them for and how they relate to you and your commercial or personal needs.
Acrylic polymers can also be referred to as acrylates. Acrylates are a group of polymers related to vinyl polymers. Acrylates are made up of acrylate monomers. But do you know what a monomer is? Don&#;t worry, many people don&#;t! A monomer is a molecule that binds chemically with other monomers to create a polymer, such as in the case of the creation of acrylic polymers. The process in which monomers chemically bind with other monomers in large number to create polymers is a term referred to as polymerization. To break it down even more, an acrylate monomer is usually an ester. An ester is a compound derived from an organic or inorganic acid in which one &#;OH (hydroxyl) group is replaced by an &#;O&#;alkyl group. The acrylate monomer is an ester that contains a number of vinyl groups, which are carbon atoms double-bonded to each other. Some polymers contain free acid or acrylic acid, even. Some acrylates have an extra methyl group attached to them and subsequently, they are referred to as methacrylates.
If you look at an acrylic or acrylate polymer under a microscope, you will see two different distinct parts of it. It has a carboxylic group and alternatively, it has the group that contains a double bond.
So enough science- what are acrylic polymers useful for? Well as you can see on the Gellner Industrial website, they are incredibly multifaceted entities. They can serve in being a quality coating for vinyl and the many subsequently vinyl applications therein, or they can become acrylic paints, which are used by a number of different artists on a number of mediums for a number of different artistic ends. Acrylic polymers go beyond vinyl applications, however. They provide a variety of quality coatings for a number of entities in the industrial world. The plastic film they entail is extremely resistant. Additionally, acrylic polymers have great potential in being used as synthetic resins. As well, all of the WonderWet Products are acrylic polymer emulsions that can be used as an additive to paint.
No matter what you are looking to do with acrylic polymers, whether it be for your painting company or your own household need, look no further than the quality polymer products offered at Gellner Industrial.