Top 10 Conformal Coating Suppliers in Cambodia

Nestled in the heart of Cambodia's capital, Phnom Penh Electronic Protection Tech (PPEPT) has been a cornerstone of the local electronics industry since 2010. What started as a small workshop with a handful of technicians has grown into a 5,000 sq.m facility serving clients across Southeast Asia. What makes PPEPT stand out? Their obsession with consistency. "We treat every PCB like it's going into a life-saving device," says Sok Heng, the company's founder and a former electronics engineer with 20+ years of experience. "Whether it's a 10-unit prototype or a 100,000-unit production run, the coating thickness, coverage, and adhesion must be perfect."

PPEPT specializes in two of the most widely used conformal coating types: acrylic and silicone. Acrylic coatings are a favorite for clients prioritizing cost-effectiveness and easy rework, ideal for consumer electronics like smart home devices. Silicone, on the other hand, shines in high-temperature environments—think industrial sensors or automotive under-the-hood components—thanks to its flexibility and heat resistance. The company's state-of-the-art spray booths and automated dip coating lines ensure uniform coverage, even on complex PCBs with tight component spacing.

Certifications matter here, and PPEPT doesn't cut corners. They hold ISO 9001 for quality management and RoHS compliance, ensuring their coatings are free from harmful substances like lead and mercury. "Our clients range from local startups to big names in Vietnam and Thailand," Sok adds. "They trust us because we don't just apply coating—we partner with them to choose the right material for their product's unique environment. A PCB for a rice cooker needs different protection than one for a solar panel in the Cambodian countryside, after all."

If Phnom Penh is Cambodia's manufacturing hub, Siem Reap is its innovation playground—and Siem Reap Precision Coating Services (SRPCS) fits right in. Tucked away in the city's growing tech park, this supplier caters to a niche but vital crowd: startups, R&D teams, and small-batch producers who need conformal coating for prototypes and low-volume runs. "Most suppliers focus on mass production, but we know the pain of a startup with a great idea but limited funds," says Vanna Chhorn, SRPCS's operations manager. "We started this company to be the 'friend in the industry' for those just getting off the ground."

What sets SRPCS apart is its flexibility. Need a custom conformal coating formulation for a unique PCB design? Their in-house chemists will work with you to tweak existing recipes or create something. Have a rush order for 50 units before a trade show? Their manual coating stations (operated by technicians with an average of 8 years of experience) can turn it around in 48 hours—no minimum order required. "We've coated PCBs for everything from student robotics projects to experimental medical monitors," Vanna laughs. "Each one gets the same care as a million-unit run."

Quality is non-negotiable here, too. SRPCS holds IPC-A-610 certification (the global standard for PCB assembly) and ISO 13485, making them a go-to for medical device prototypes. Their lab includes a humidity chamber and thermal cycling tester, so clients can verify coating performance before full production. "A client once came to us with a PCB that kept failing in high humidity," Vanna recalls. "We tested three coating types, found the silicone blend worked best, and now they're scaling up with us. That's the reward—helping ideas become reliable products."

While they don't do mass production (yet), SRPCS's focus on prototypes has earned them a loyal following. "We're not the cheapest, but we're the most attentive," Vanna says. "When you're building something no one's seen before, you need a supplier who asks, 'What if?' instead of just 'How many?' That's us."

Head south from Phnom Penh, and you'll find Kampong Cham Circuit Protection Ltd. (KCCPL), a supplier that means business when it comes to mass production. With two sprawling facilities and a team of over 200 employees, KCCPL handles high-volume orders for some of Cambodia's biggest electronics exporters, from power tools to smart meters. "Our sweet spot is 100,000+ units per month," says Dara Meas, KCCPL's production director. "We've invested in automation to keep up with demand without sacrificing quality."

The star of KCCPL's operation is its UV-curable conformal coating line. Unlike traditional solvent-based coatings that take hours to dry, UV-curable options harden in seconds under UV light, slashing production time. "For clients shipping products globally, speed is everything," Dara explains. "With UV curing, we can coat, dry, and ship a batch in half the time of our competitors. It also reduces waste—no solvents to evaporate, so we use less material overall." The company also offers acrylic and urethane coatings, giving clients options based on budget and performance needs.

Certifications are a point of pride here: KCCPL is ISO 9001 certified and UL-listed, ensuring their coatings meet strict safety and reliability standards. Their quality control team uses automated thickness gauges and adhesion testers to check every 100th unit, and they provide detailed reports for clients auditing their supply chains. "We once had a client from Europe who was nervous about outsourcing to Cambodia," Dara remembers. "They sent a team to audit us, and by the end, they were so impressed they doubled their order. That's the story of our growth—earning trust, one PCB at a time."

Despite its size, KCCPL prides itself on customer service. "We assign a dedicated account manager to every client, so they're never just a number," Dara adds. "Whether you're ordering 100,000 units or 1 million, you'll get weekly updates and direct access to our team. In this industry, reliability isn't just about the coating—it's about the people behind it."

For PCBs that face the toughest conditions—think military equipment, oil rig sensors, or aerospace components—Battambang PCB Shielding Solutions (BPSS) is the name to know. Located in Battambang's industrial zone, this supplier specializes in "extreme environment" conformal coating, with a focus on durability that can withstand everything from salt spray to extreme temperatures (-50°C to 150°C). "Our motto is, 'If it can break a PCB, we can protect it,'" says Sokha Nguon, BPSS's technical director and a former aerospace engineer.

BPSS's secret weapon is its military-grade coating options. Their silicone-based coatings, for example, are tested to MIL-STD-810 (the U.S. military's standard for environmental engineering), ensuring they resist vibration, shock, and chemical exposure. They also offer Parylene coating—a ultra-thin, pinhole-free option ideal for delicate components like sensors or microchips. "Parylene is like a second skin for PCBs," Sokha explains. "It's only a few microns thick, so it doesn't add bulk, but it's impermeable to liquids and gases. Perfect for a drone PCB that might crash into a lake or a sensor in a chemical plant."

Certifications here are next-level: BPSS holds AS9100 (the aerospace quality standard) and is RoHS compliant. Their facility includes a dedicated cleanroom for sensitive projects and a testing lab with equipment to simulate rain, dust, and even sandstorms. "A client in the oil industry once needed a PCB that could survive being submerged in crude oil for 30 days," Sokha recalls. "We coated it with our high-performance urethane blend, tested it in our lab, and it worked flawlessly. Now they're our biggest client."

While BPSS's main clients are in defense, energy, and aerospace, they also work with industrial clients who need rugged solutions. "A rice mill in Kampong Thom approached us because their control PCBs kept failing due to dust and moisture," Sokha says. "We coated them with our silicone blend, and now they're replacing boards 80% less often. It's rewarding to bring military-grade protection to everyday industries."

As Cambodia's main seaport, Sihanoukville is no stranger to harsh marine environments—and Sihanoukville Electronics Coatings (SEC) leverages that expertise to protect PCBs from saltwater, humidity, and corrosion. Founded in 2015 by a team of expat engineers with experience in shipbuilding, SEC has become the go-to supplier for marine electronics, coastal infrastructure, and offshore equipment. "If your PCB is within 10 miles of the ocean, we're your people," jokes Rithy Lay, SEC's founder.

SEC's specialty is marine-grade conformal coating, a modified silicone blend infused with corrosion inhibitors that repel salt and moisture. "Saltwater is the worst enemy of electronics," Rithy explains. "It's conductive, so even a tiny droplet can cause a short. Our coating forms a barrier that not only blocks water but also prevents corrosion from starting in the first place." They also offer UV-resistant coatings for solar panels and navigation equipment exposed to constant sunlight.

Speed is another SEC advantage. Located near the port, they can coordinate with shipping lines to coat PCBs and have them on a container ship within 24 hours—a boon for international clients. "A client in Singapore once needed 500 PCBs for a fishing boat navigation system," Rithy says. "We coated them on Monday, had them on a boat Tuesday, and they were installed by the weekend. That's the Sihanoukville edge."

Certifications include ISO 9001 and IPC-A-610, and SEC's team includes a former naval electronics technician who consults on client projects. "We don't just coat—we educate," Rithy adds. "A fishing boat captain might not know that humidity in the engine room is just as damaging as salt spray. We'll inspect their equipment, recommend coating, and even train their crew on basic maintenance. It's how we build long-term relationships."

Cambodia's automotive parts manufacturing sector is booming, and Kandal Conformal Coat Masters (KCCM) is right in the thick of it. Located in Kandal Province, just outside Phnom Penh, KCCM specializes in conformal coating for automotive PCBs—think engine control units (ECUs), infotainment systems, and sensor modules that must withstand extreme temperatures, vibration, and oil exposure. "Cars are like moving factories," says Dara Lim, KCCM's sales manager. "Their PCBs face more stress in a day than a smartphone does in a year. Our coatings are built to keep up."

KCCM's claim to fame is its thermal-resistant conformal coatings, designed to handle the 120°C+ temperatures under a car hood. Their silicone-urethane hybrid coating, for example, maintains flexibility even after years of heat cycling, preventing cracks that could expose the PCB. They also offer flame-retardant options for PCBs near fuel systems, meeting UL 94 V-0 standards (the highest fire resistance rating). "We work closely with automotive tier-1 suppliers," Dara notes. "They demand consistency, so our automated lines are calibrated to within 0.5 microns of coating thickness. No exceptions."

Certifications here are critical: KCCM holds IATF 16949 (the global quality standard for automotive manufacturing) and RoHS compliance, ensuring their coatings meet strict environmental and safety rules. Their facility includes a vibration testing rig and a thermal shock chamber to simulate the wear and tear of a 100,000-kilometer drive. "A client once had an ECU PCB that kept failing in hot weather," Dara recalls. "We tested their existing coating, found it was hardening and cracking, and switched them to our thermal-resistant blend. Now their failure rate is near zero."

While automotive is their focus, KCCM also serves industrial clients with high-temperature needs, like factory machinery and power tools. "At the end of the day, it's all about trust," Dara says. "A car manufacturer can't afford a recall because of a faulty PCB. We take that responsibility personally."

In the quiet province of Takeo, Takeo Precision Coatings (TPC) is making waves in a critical field: medical device conformal coating. With ISO 13485 certification and FDA registration, TPC specializes in coating PCBs for devices like heart rate monitors, insulin pumps, and diagnostic equipment—where a coating failure could mean the difference between life and death. "Medical electronics have zero room for error," says Sothea Pech, TPC's quality assurance manager. "We treat every PCB like it's going into a patient's body—because sometimes, it is."

TPC's coatings are biocompatible, meaning they won't leach harmful chemicals into the body or react with skin. Their most popular option is a clear, hypoallergenic acrylic coating that's easy to sterilize (compatible with autoclaving and ethylene oxide gas). For implantable devices (like pacemaker PCBs), they offer Parylene coating, which is approved by the FDA for long-term contact with tissue. "We once worked on a prototype for a neural stimulator," Sothea says. "The coating had to be so thin it was almost invisible, but still block fluid and protect the delicate electronics. It took three months of testing, but we got there."

Cleanliness is paramount at TPC. Their facility includes a Class 8 cleanroom (fewer than 100,000 particles per cubic foot) and strict gowning protocols to prevent contamination. Every batch of coating is tested for biocompatibility and sterility before use, and clients receive detailed documentation for FDA submissions. "A medical device company's regulatory team is our best friend," Sothea laughs. "We provide so much data, they joke we're writing their compliance reports for them. But that's the point—we want to make their job easier."

While medical devices are their core, TPC also serves the pharmaceutical and dental equipment industries. "At the end of the day, it's about saving lives," Sothea adds. "When a doctor relies on a device to make a diagnosis, they're relying on us, too. That's a responsibility we never take lightly."

For clients prioritizing sustainability, Kampot Circuit Defense Services (KCDS) is a breath of fresh air. This eco-focused supplier specializes in water-based conformal coatings, which eliminate the harmful solvents found in traditional options—reducing both environmental impact and worker exposure to toxins. "We started KCDS because we saw a gap in the market," says Bopha Chhay, KCDS's founder. "Most coatings are made with chemicals that smell like a paint thinner factory. We wanted to prove you can protect PCBs without harming the planet."

Water-based coatings aren't just "green"—they're high-performing, too. KCDS's flagship product, a water-based acrylic, offers 99% of the moisture resistance of solvent-based versions but with zero volatile organic compounds (VOCs). It's ideal for indoor electronics like home appliances, office equipment, and consumer gadgets, where ventilation is limited. "We've worked with a Cambodian fan manufacturer that wanted to market their products as 'eco-friendly,'" Bopha explains. "By switching to our water-based coating, they reduced their carbon footprint and now use the certification in their marketing. It's a win-win."

KCDS holds ISO 14001 (environmental management) and RoHS certifications, and their facility runs on solar power. They even recycle wastewater from the coating process, using it to water the surrounding garden. "Sustainability isn't a marketing buzzword for us—it's how we operate," Bopha says. "Our technicians don't wear respirators because there are no fumes. Our clients love that they can visit our facility without smelling chemicals."

While small-batch runs are their specialty (they handle orders as low as 10 units), KCDS is scaling up to meet demand. "We're proof that you don't have to choose between quality and sustainability," Bopha adds. "A PCB coated with our water-based formula will last just as long as a solvent-based one—and you can feel good about how it was made."

Preah Sihanouk Advanced Coating Tech (PSACT) is Cambodia's answer to Industry 4.0. Located in the coastal city's smart manufacturing zone, this supplier combines cutting-edge automation with AI-driven quality control to deliver conformal coating with unmatched precision. "We're not just coating PCBs—we're data-driven," says Visal Sok, PSACT's tech director. "Every step is monitored, analyzed, and optimized to ensure perfection."

PSACT's star attraction is its automated coating line, featuring robotic arms that apply coating with sub-millimeter accuracy. The line is equipped with 3D cameras that scan each PCB before coating, adjusting the arm's path to account for component height variations. After coating, AI-powered vision systems inspect every square millimeter for gaps or uneven thickness, flagging issues in real time. "Traditional manual inspection might miss 5% of defects," Visal explains. "Our AI catches 99.9%. That's the difference between good and great."

The data doesn't stop there. Clients get access to a dashboard showing coating thickness, curing time, and inspection results for every batch—perfect for traceability and process improvement. "A client in South Korea uses our data to optimize their PCB design," Visal notes. "By seeing where coating is thicker or thinner, they've redesigned components to reduce material waste. It's a partnership that goes beyond coating."

Certifications include ISO 9001 and Industry 4.0 compliance, and PSACT is expanding into smart coatings—options embedded with sensors that can monitor PCB health in real time. "The future of conformal coating isn't just protection—it's intelligence," Visal says. "Imagine a coating that alerts you to a crack before it causes a failure. That's where we're heading."

Rounding out our list is Koh Kong Electronics Protection (KKEP), a one-stop shop for clients who want more than just conformal coating. Located near the Cambodia-Thailand border, KKEP offers "turnkey" services: PCB assembly, component sourcing, conformal coating, and even final testing—all under one roof. "We started as a coating supplier, but clients kept asking, 'Can you just build the whole PCB for us?'" says Dara Sorn, KKEP's general manager. "So we expanded. Now, you can send us a design file, and we'll deliver a fully coated, tested PCB ready for your product."

This end-to-end approach saves clients time and money. Instead of coordinating with multiple suppliers (assembly house, coating service, testing lab), they work with KKEP as a single partner. "A client from Malaysia once told us they were spending 20 hours a week managing suppliers," Dara recalls. "After switching to us, that dropped to 2 hours. They could focus on designing new products instead of chasing shipments."

KKEP's conformal coating services include all major types (acrylic, silicone, urethane) and are backed by ISO 9001 certification. Their assembly line handles both SMT (surface-mount technology) and through-hole components, and their testing lab offers functional testing to ensure coated PCBs work as intended. "We don't just coat a PCB—we make sure it functions perfectly after coating," Dara adds. "If a component fails during testing, we'll rework it and recoat at no extra cost. That's our promise."

With clients across Southeast Asia, KKEP prides itself on its logistics expertise. They can ship coated PCBs via land, sea, or air, with customs clearance handled in-house. "We speak the language of global manufacturing," Dara says. "Whether you're in Bangkok or Berlin, we'll get your PCBs to you on time and protected. That's the Koh Kong advantage."