DAWN Tech

Parylene has become one of the most popular coating materials, owing to its high reliability and performance. But achieving excellence in parylene coating requires more than routine application. The solution is a combination of proven experience and cutting-edge technology.

DAWN Tech has set a benchmark in the industry with its unrivaled technical know-how, proprietary equipment and a deep commitment to quality. This powerful combination significantly improves the standards of the parylene coating, resulting in a superior solution for clients across industries.

“We prioritize quality and exceptional service for our customers, leveraging our specialized knowledge, precise focus and experience,” says Koon Lee Shen, chief technology officer.

It constantly upgrades its techniques through research and development, elevating parylene from a top-tier product to best-in-class.

Parylene belongs to a specific family of polymers created via vapor deposition. It forms an ultra-thin, uniform layer that adheres precisely to the contours of substrates, leaving no gaps for contaminants to penetrate. Known for its longevity, it has become a sustainable alternative for companies committed to environmental responsibility. DAWN Tech’s advanced application process maximizes these attributes, making parylene an ideal solution for high-value sectors such as electronics, automotive, aerospace, defense and medical industries.

Over the years, the technology has been highly successful across the APAC region and DAWN Tech is increasingly expanding its presence to global markets, including in the U.S.

Cutting-Edge Protective Innovation

With four decades of experience in surface treatment and parylene coating, Shen’s laser focus on the industry has been instrumental in expanding applications.

Initially, parylene was primarily sought for components such as high-end printed circuit board assemblies. Over time, it extended to more common applications, including those requiring waterproof and water-resistant properties.
Its gaseous deposition offers a key advantage—eliminating pinholes and defects even when the coating is as thin as one micron. When processed in DAWN Tech’s specialized vacuum chamber, parylene clings to surfaces of any size or form, effectively covering crevices, edges, points, sharp ends and internal surfaces without gaps. The uniformity of the coat makes it different from liquid-based coatings like silicone or acrylic, which fail to take the exact contour of the substrate.

Its ability to adapt to any product makes it the top choice for businesses looking to protect their equipment. Various substrates, such as plastic, ceramic, metals, glass, ferrite, paper and silicon, can effectively be coated with parylene. This makes it highly valued in a variety of use cases, including medical equipment like pressure sensors, stents and cardiac assist devices and circuit boards and electronic products.

But for optimal results, the substrates must be meticulously cleaned and properly treated before coating. Dawn Tech excels in this regard, ensuring that every substrate is prepared so that it is coated to the highest standards.

Superior reliability is another reason customers prefer parylene over other conformal coatings. Due to its thermal stability, impressive mechanical strength, insolubility in organic solvents and high chemical resistance, it resists moisture for enhanced protection. This proves true in applications where environmental factors can impact performance, particularly in the manufacturing of products such as electric vehicles and vending machines.

Parylene delivers all these benefits even when in its typical micron range. DAWN Tech’s technology allows for customized application thicknesses.

This ultra-thin characteristic also makes it ideal for applications such as phone keypads. It adds no discernable weight and volume. DAWN Tech once helped a client who struggled with the durability of its silicone-coated keypads Silicone keypads posed challenges in maintaining protection against wear and tear, particularly on surface edges, as well as visual clarity and functionality.

Recognizing the need for an effective solution, DAWN Tech proposed using parylene. It offered a thin yet robust layer, approximately three micrometers thick that effectively prevented legends from wearing off even after prolonged use.

The coating also enhanced the keypad’s performance by improving the tactile feel, ensuring smooth operation. Parylene’s durable properties helped maintain structural integrity and functionality over time. Due to the significant benefits, the innovation quickly gained traction, replacing outdated methods and setting a new standard in keypad protection.

Eco-Friendly Shielding Layers

DAWN Tech’s solution contributes to sustainability by reducing the frequency of replacements. Designing products with longevity saves resources, lowers energy usage and reduces greenhouse gas emissions in manufacturing processes. The technology supports industries in going green through the long-lasting appeal of its solutions, even under extreme conditions.

The application process of parylene further enhances these sustainability benefits. Traditional liquid dip coating or spray coating methods often require energy-intensive ovens for curing. They consume considerable energy and emit pollutants that are harmful to the environment.

Applied in a specially developed vacuum chamber, DAWN Tech’s technology offers significant environmental and operational advantages like reduced energy consumption and emissions associated with curing processes. Coating is conducted at room temperature, eliminating the need for subsequent heat treatment. These advantages make it a more sustainable option for companies aiming to reduce their environmental footprint while upholding high-quality coating standards.

Expertise and Precision in Every Step

The team at DAWN Tech comprises highly skilled technical and operations staff with years of extensive, hands-on experience in parylene coating. They play a crucial role in ensuring its success and quality.

The manufacturing team adheres to standard operating procedures meticulously designed to mitigate potential challenges. They are continuously educated on the importance of concentration and precision in their work, emphasizing the delivery of high-quality products. This disciplined approach minimizes coating problems, setting the company apart from its competitors.

“Abundant resources are meaningless if the team lacks focus and does not follow SOP. Our team is trained on getting the job done correctly. Submitting high-quality work truly matters for us, even if it takes longer,” says Shen.

A Quality Advantage that Pays Off

The quality control process at DAWN Tech leads to a significant reduction in rework and rejection rates. This capability addresses a key challenge in the industry—the perceived high cost of technology.

Many potential clients have cost considerations when evaluating coating options, often perceiving parylene coating as prohibitively expensive compared to conventional options. While it may appear costly, DAWN Tech’s superior quality control ensures reliability in product performance, effectively negating the need for frequent replacements.

DAWN Tech also allows prospective customers to experience the technology’s benefits firsthand. Clients receive a complimentary sample coating so they can test the efficacy and durability, and compare it with alternative coating methods. This approach convinces more customers to adopt the solutions for their critical applications, establishing trust and proving the value for money.
With multiple plants in locations in Southeast Asia, DAWN Tech efficiently serves varied clients across the region. To better support its international clientele and reduce transportation times, the company plans to establish a plant in the U.S. dedicated to specialized coating services.

Harnessing the formidable capabilities of parylene and its own cutting-edge technological capability, DAWN Tech is significantly enhancing the protection of materials in critical applications. As industries continue to seek advanced coating solutions, it stands ready to be their trusted partner, delivering premium-quality solutions backed by service excellence.