Top 10 Conformal Coating Suppliers in Sri Lanka

Founded in 2005, Lanka Coating Technologies (LCT) has grown from a small workshop in Colombo to one of Sri Lanka's most trusted conformal coating partners. What sets LCT apart is its focus on pcb conformal coating for high-reliability industries like medical devices and aerospace. Their 15,000 sq. ft. facility in Katunayake is ISO 9001 and RoHS certified, equipped with automated spray systems that ensure uniform coating thickness—critical for sensitive electronics.

LCT specializes in acrylic, silicone, and urethane coatings, with a team of 20+ engineers who work closely with clients to tailor solutions. "We once helped a local medical equipment manufacturer develop a custom acrylic conformal coating that could withstand repeated sterilization cycles," shares Managing Director Priyantha Jayasekara. "That project taught us the value of listening—sometimes the best solutions come from understanding our clients' unique challenges."

SLCS, established in 2010, has made a name for itself by bridging the gap between affordability and quality. Based in Kandy, their facility caters to both large-scale manufacturers and startups, offering everything from manual coating for low-volume projects to fully automated lines for mass production. "We believe every client, whether they need 100 boards or 100,000, deserves the same level of care," says Operations Manager Anjali Perera.

Their portfolio includes circuit board conformal coating for consumer electronics, automotive components, and industrial sensors. What impresses clients most is their quick turnaround—standard orders are completed in 48 hours, and rush services are available for projects. SLCS also invests heavily in training; their technicians undergo annual certification in the latest coating technologies, ensuring they stay ahead of industry trends.

TechShield Coatings Lanka entered the market in 2012 with a bold mission: to make Sri Lanka a leader in eco-friendly conformal coating. Today, they're the go-to supplier for companies prioritizing sustainability. Their water-based acrylic coatings have 70% lower VOC emissions than solvent-based alternatives, without compromising on protection. "We work with clients who share our commitment to the planet," explains Environmental Compliance Officer Rajitha Fernando. "It's rewarding to see a local electronics brand tell their customers, 'Our devices are protected by coatings that are kind to the Earth.'"

Based in Hambantota, TechShield's facility runs on solar power and recycles 90% of its wastewater. They offer coating services for PCBs used in renewable energy systems, such as solar inverters and wind turbine controllers—fitting, given their green focus. Clients also praise their transparency; they provide detailed reports on coating thickness, adhesion testing, and environmental impact for every order.

CoatPro Solutions, a subsidiary of the renowned TechGroup Lanka, brings decades of global experience to the local market. Since 2015, they've specialized in circuit board conformal coating for high-precision industries like telecommunications and defense. Their facility in Biyagama Export Processing Zone is equipped with Class 10,000 cleanrooms and inline inspection systems that check for coating defects at 10x magnification—no flaw is too small to escape their attention.

What clients love about CoatPro is their end-to-end service. "We don't just coat the PCBs; we partner with clients from design to delivery," says Technical Director Chamara Silva. "If a PCB has complex components, our engineers will suggest coating modifications to ensure full coverage without interfering with functionality." Their certifications include AS9100 (aerospace) and IPC-CC-830, making them a trusted partner for international clients with strict quality requirements.

GreenCoat Lanka has carved a niche in the automotive sector since its founding in 2013. Located in Kurunegala, their team understands the unique demands of automotive PCBs—they must withstand vibration, engine heat, and exposure to oils and fuels. "Cars are like moving laboratories," jokes Sales Manager Nadeesha Gunasekara. "A conformal coating here can't just protect; it has to flex with the PCB during temperature cycles to avoid cracking."

GreenCoat's silicone-based coatings are formulated for flexibility, making them ideal for under-the-hood electronics. They also offer UV-curable coatings for clients needing instant curing, reducing production time. With a client list that includes local automotive part manufacturers and international Tier 1 suppliers, GreenCoat prides itself on its "no-failure" track record—they back every order with a 5-year warranty against coating delamination or degradation.

Precision Coatings lives up to its name with a specialization in micro-coating for miniaturized electronics. Founded in 2008, this Colombo-based supplier caters to wearable tech, IoT sensors, and smart home devices—products where every millimeter of space counts. Their nanotechnology-based coatings are just 10-20 microns thick (thinner than a human hair) but offer the same protection as thicker alternatives.

"When a client comes to us with a PCB the size of a postage stamp, we know precision is non-negotiable," says R&D Head Mihira Weerasinghe. Precision Coatings uses automated dispensing robots with needle tips as fine as 0.1mm to coat even the tightest spaces between components. They also offer circuit board conformal coating testing in-house, including humidity chamber testing and salt spray exposure, to ensure their thin coatings hold up in real-world conditions.

As the name suggests, AquaShield Coatings specializes in waterproof conformal solutions. Established in 2011 in Galle, they've become the go-to for marine electronics, outdoor LED lighting, and waterproof consumer devices. Their fluoropolymer coatings create a hydrophobic barrier that repels water even at submersion depths of up to 10 meters—perfect for Sri Lanka's coastal industries.

"We once coated PCBs for a local fishing boat's navigation system that now works flawlessly in monsoon rains," says Founder Dinesh Perera. "The captain later told us he used to ｒｅｐｌａｃｅ his PCB every 6 months; now it's been 3 years and counting." AquaShield also offers training workshops for clients, teaching them how to inspect and repair coated PCBs without damaging the protective layer—a service that builds long-term trust.

Elite Coatings Lanka targets the high-end consumer electronics market, working with brands that demand both protection and aesthetics. Since 2016, their facility in Moratuwa has focused on clear, glossy coatings that don't obscure PCB designs—a hit with clients making transparent devices or limited-edition gadgets. "Some of our clients want the PCB to be visible as a design feature," explains Creative Director Shalini de Silva. "Our clear acrylic conformal coating lets the circuitry shine while keeping it safe."

Elite's coatings are also optimized for thermal management, dissipating heat from high-performance chips in gaming laptops and smartphones. They use low-VOC formulations to meet global eco standards and offer color-tinted coatings for clients wanting a branded look. With a fast-growing export arm, Elite now serves clients in India and Southeast Asia, putting Sri Lankan conformal coating on the regional map.

National Coating Services (NCS) is a government-backed supplier with a mission to support Sri Lanka's local electronics manufacturing ecosystem. Founded in 2001, their sprawling facility in Homagama offers affordable pcb conformal coating for small and medium enterprises (SMEs), startups, and educational institutions. "We believe innovation shouldn't be limited by budget," says General Manager Janaka Bandara. "A university project or a startup's prototype deserves the same protection as a mass-produced device."

NCS offers flexible pricing tiers, with discounts for educational projects and first-time clients. They also run a "Coating Clinic" where engineers provide free consultations on choosing the right coating type. Their services include manual coating for low-volume projects and semi-automated lines for SMEs scaling up production. With a focus on community, NCS has helped launch over 50 local electronics startups by keeping their prototyping costs low.

Rounding out our list is Global Coat Lanka, a subsidiary of a Singaporean conformal coating giant that brings international standards to Sri Lanka. Since 2018, their facility in the Colombo Port City has served as a regional hub, offering circuit board conformal coating for clients across South Asia. What makes Global Coat stand out is its global supply chain—they source high-performance coatings from Germany and the US, ensuring access to the latest formulations.

"Our parent company's R&D team is constantly innovating, and we bring those advancements straight to Sri Lanka," says Regional Director Lim Wei Ling. Global Coat specializes in solvent-free coatings for clients in the food and beverage industry, where chemical resistance is critical, and offers expedited shipping to neighboring countries. Their ISO 13485 certification also makes them a trusted partner for medical device manufacturers requiring compliance with global health standards.