With the strong growth of technology, PCBs are used in most industries. They have more and more advanced functions and operate in myriad environments, which makes the demand for an advanced and high-performance conformal coating is constantly increasing. There are many candidates in this race, the top candidates often have products with certain outstanding aspects that meet certain special requirements of the vast market. Popular Conformal Coating Manufacturers and their Reliable Part Number can be list as below:
3M
3M is an American multinational corporation with more than 100 years of operating in the fields of industry, worker safety, U.S. health care, and consumer goods.
In Electronic Industry, 3M develops a wide variety of products, from adhesives and adhesive tapes to abrasives and coatings. Also in this field, this company is famous for its products that are very high quality as well as extremely friendly to the environment and human health.
For conformal coating, 3M focuses on fluorinated polymer which is designed for moisture protection of printed circuit boards and electronic components. This type of conformal coating is used especially in high-segment applications, applications where reliability and performance are paramount, such as aerospace and medical, high-valued electronics, and automotive.
- Chemical Type: Fluorinated polymer
- Single component
- Nonflammable, non-ozone-depleting, low in toxicity, low in GWP, low VOC, RoHS compliant, contains no chlorine or bromine
- Easy to apply – dries quickly without the need for post-application curing
- UV indicator for inspection
- Excellent moisture and corrosion resistance
- Thermally and electrically stable with good dielectric properties
- Various methods of application
Momentive
Momentive is an American chemical company that was formed in October 2010. Momentive has become a global leader in developing high-performance resins, silicones, and other advanced materials.
Momentive serves several markets, including automotive, construction, consumer goods, electronics, oilfield exploration, and production.
Momentive silicone conformal coating materials employ distinct formulations that help prevent the occurrence of corrosion on vital PCB components and surfaces. With many years of experience specializing in silicone formulations, Momentive has earned a reputation for delivering best-in-class performance. Besides, products with different curing mechanisms, for example, UV curing, facilitate diverse customer segments and production conditions.
- Chemical Type: Silicone
- Single component,
- Solvent-free, low viscosity
- Low volatility
- Fast tack-free time
- Flexibility, good corrosion resistance
- Continuous operating temperature range of –40~150°C
- Flame retardant: UL94V-0 certified
- Meets IEC60068-2-52, IEC60068-2-60, IPC-CC-830B
Techspray
Techspray formulates, blend, and package a wide variety of chemicals and assorted support products for the electronics industry, heavy industry, aviation, plant, and equipment maintenance. They also offer new technologies to improve safety for both personnel and the environment.
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Chemical Type: Urethane
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Max operating tempurature to 120 °C
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Dielectric strength-380 volts/mil
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Moisture resistant, Chemically resistant, Abrasion resistant
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UL94 V-0 – nonflammable final coat
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Meets IPC-CC-830B & MIL-I-46058C
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UV indicator for black light QC inspection
Techspray offers a variety of conformal coating formulas for differing field or engineering requirements with conformal coating materials in three chemical base types: Acrylic, Urethane, and Silicone. They are IPC CC 830B and UL94-V0 qualified or rated. With a wide range of products, Techspray provides comprehensive solutions for PCBs from cleaning to masking, coating, and removing. Product is also packaged in various capacities for customer process convenience under all application methods.
HumiSeal
HumiSeal
Major application segments served by the company include wires and cables materials, electronic coatings, construction products, and specialty chemical intermediates.
- Excellent moisture and environmental protection for printed circuit assemblies
- Fluorescence under UV light for ease of inspection
- Urethane chemistry
- Chemically resistant
- Single component
- Contains no free isocyanates
- Used in combination with Thinner 503/521
- MIL-I-46058C qualified
- RoHS directive 2015/863/EU
- Recognized under UL File Number E105698
The electronic coatings business unit of the company offers HumiSeal a range of conformal coatings for thin-film (2 mils, 50 microns) protection. End-user industries served by the segment include aerospace, automotive, appliance control, consumer electronics, defense, and industrial controls.
Henkel
- Chemical Type: Acrylic
- Single component
- Fast-drying, room temperature cure
- High dielectric strength
- Precision spray nozzle
- Contains no CFCs
The type of conformal coatings offered by the company includes urethane acrylates, acrylics, urethanes, and silicones. The company’s conformal coating is traded under the brand name Loctite. Henkel provides a conformal coating on printed circuit boards to protect them from harsh environments for durability and performance.
Dymax
Dymax
It is a leading manufacturer of advanced rapid and light curable adhesives, coatings and many more items. The company was founded in the year 1980 and is headquartered in Torrington, Connecticut, United States. Dymax Oligomers and Coatings is one of its subsidiaries.
- Chemical Type: Urethane Acrylate
- Single component, No Mixing or Dilution Required
- Fast UV/Visible Light Cure with secondary Heat cure
- Solvent Free, Halogen-free
- Flexible for Enhanced Thermal Shock Performance
- Full compliance with RoHS directives 2015/863/EU
- IPC-CC-830 approved and MIL-I-46058 listed
This American organization started its business with UV/visible light in its portfolio. Now, with the growing demand for its products, Dymax has expanded its product line with LED light-curable materials.
Dow
Dow Corning
Dow Corning’s conformal coatings provide extended service life and enhanced reliability for PCB components and assemblies. The company’s silicone conformal coatings are offered as moisture care solutions and heat-cure conformal coatings.
These coatings protect the components against moisture, service environment, and harsh operating conditions, including a wide range of temperatures ranging from -49 °F to 392 °F.
Each conformal coating manufacturer has its own strength and weakness. Among multiple choices, users should consider different criteria to make the best one. For more information, please contact us:
