-
- News
- Books
Featured Books
- smt007 Magazine
Latest Issues
Current IssueBox Build
One trend is to add box build and final assembly to your product offering. In this issue, we explore the opportunities and risks of adding system assembly to your service portfolio.
IPC APEX EXPO 2024 Pre-show
This month’s issue devotes its pages to a comprehensive preview of the IPC APEX EXPO 2024 event. Whether your role is technical or business, if you're new-to-the-industry or seasoned veteran, you'll find value throughout this program.
Boost Your Sales
Every part of your business can be evaluated as a process, including your sales funnel. Optimizing your selling process requires a coordinated effort between marketing and sales. In this issue, industry experts in marketing and sales offer their best advice on how to boost your sales efforts.
- Articles
- Columns
Search Console
- Links
- Events
||| MENU - smt007 Magazine
Benefits of Paralyne Conformal Coatings in Automotive Applications
October 1, 2015 | Sean Horn, Diamond MTEstimated reading time: 1 minute
Conformal coatings are protective substrate coverings applied to circuit board technology, moving parts of strategically located components, or similar electro-mechanical assemblies; they are composed of selected chemicals or polymer films. Acrylic, epoxy, paralyne (poly- paraxylene), silicone and urethane are the major substances comprising most conformal coating used today. Although each has different properties and applications, the coatings they provide are generally between 25–75 μm thick, with coverage that accurately conforms to the contours of the substrate.
All conformal coatings exhibit some degree of physical flexibility, and protection against mechanical and thermal shock, while securing the component from exposure to corrosive elements. The substances acrylic, epoxy, silicone and urethane benefit from simple application— by dipping, flow-coating or spraying the material to the selected substrate—and relatively easy removal, repair and replacement, if necessary. In contrast, paralyne requires a specialized vapor deposition process, which is slower to enact and more costly. However, because the vapor deposition process causes the paralyne to penetrate far more completely into the substrate surface, it produces the highest levels of protection available for many automotive purposes.
Selection of coating type depends upon its function and degree of need for surface protection.
Expanded Automotive Use of Conformal Coatings
Electrically insulating, conformal coatings maintain levels of long-term surface insulation resistance (SIR) appropriate to the optimal function of the protected system. Thus, electronic circuits and operational equipment receive protection sufficiently reliable to ensure their operational integrity despite the situation within an engine, generating harsh environments that may contain moisture, humidity, electric current, chemical contaminants, or a mixture of them.
These features are particularly necessary where the protected equipment is expected to operate at high levels of reliability under conditions exemplified by persistent mechanical vibration in the presence of various combinations of aggressive chemicals, harsh liquids and vapors. For automotive purposes, the security generated by conformal coatings simultaneously protects the products and systems within the engine, while adding to the functional performance, better assuring the vehicle operates as intended.
Editor's Note: This article originally appeared in the September 2015 issue of SMT Magazine.
Suggested Items
ViTrox Showcases Revolutionary Industry 4.0 Full Turnkey SMT PCBA Inspection Solutions at Productronica Germany 2023
09/13/2023 | ViTroxViTrox, which aims to be the world’s most trusted technology company, is thrilled to announce that we will be participating in Productronica Germany, at Booth #A2.504, from 14th to 17th November 2023, in International Congress Center München (ICM), Munich, Germany.
Dymax 9771 Conformal Coating Receives MIL-I-46058C Certification for PCBA
09/12/2023 | DymaxDymax, a leading manufacturer of light-curing materials and equipment, is pleased to announce that their ground-breaking AR conformal coating, 9771, has completed the rigorous qualification testing for Military Specification MIL-I-46058C. This UL94V0 and UL746E recognized dual-cure coating has also been approved to the IPC-CC-830B standard and fully complies with RoHS2 Directives 2015/863/EU.
Embark on an Innovative Journey: Mexico Technology Day 2023 by ViTrox & SMTo
09/12/2023 | ViTroxViTrox, which aims to be the world’s most trusted technology company, is thrilled to announce that we will be partnering with our trusted Sales Channel Partner (SCP) in Mexico, SMTo Engineering SA de CV, to bring to you our Mexico Technology Day 2023.
Austin American Technology Creates Buzz with Justin Worden’s 1st SMTA Presentation
09/07/2023 | Austin American Technology (AAT)Justin Worden, the dynamic Global Sales and Marketing Director at Austin American Technology (AAT), is no stranger to creating a buzz in the electronics industry.
Anda Technologies to Showcase State-of-the-Art Plasma, Dispensing and Coating Systems at SMTA International
09/06/2023 | Anda Technologies USA, Inc.Anda Technologies, a leading provider of fluid application and custom automated manufacturing equipment, will exhibit in Booth #916 at the upcoming SMTA International exhibition. The event will be held at the Minneapolis Convention Center in Minnesota from Oct. 10-11, 2023.