G.C. Zarnas has over 100 years of combined experience with various corrosion-resistant systems that enable us to recommend optimum solutions. We provide our clients detailed proposals identifying the scope of the work, application, quality assurance and safety procedures. Our field personnel – skilled in surface preparation and application techniques, including quality control and safety – follow through on every detail of your heavy-duty industrial project.



“As a coatings manufacturer, we have taken on projects as partners, sharing liability and responsibilities for completing critical path contracts. These projects have been completed on time, according to specification and with no operational delays to the owner.”




The chemical industry is one of the United States’ largest manufacturing industries, serving both a sizable domestic market and an expanding global market. It is also one of the top exporting sectors of U.S. manufacturing. G.C. Zarnas is proud to serve this industry and to help promote our partners to “Buy American.” Companies like Dow Chemicals, and DuPont have honored G.C. Zarnas with awards for our outstanding leadership, workmanship and commitment to safety.

Food/Beverage and Pharmaceutical

Pharm Food Beverage

Through our coating systems, we combat the risk of uncontrolled bacterial growth, maintain cleanliness and help our clients meet FDA approvals for safe production. G.C. Zarnas has been used routinely by prestigious organizations such as Merck & Co., Inc., Hoffman La Roche, Wyeth-Ayerst, Children’s Hospital of Philadelphia, DuPont and M&M Mars for our extensive knowledge and expertise in the application of special coating systems, which house pharmaceutical laboratories, clean and surgical rooms, and food and beverage processing areas.



The global marine coatings market is witnessing a growing consumer preference for eco-friendly products.  G.C. Zarnas has the experience to service this market’s demanding conditions and environments. Our craftspeople are mobile, capable of reaching the most remote locations. Look to Zarnas for our longshoreman capabilities in applying marine coatings to protect your customers’ assets. Our targeted markets include cargo barges, dredgers and naval vessels.


Petrochemical crop

The petrochemical industry is capital intensive, and, therefore owner investment is enormous. Assets are being assaulted by corrosion and chemical attacks. In addition, safety, regulatory compliance and plant reliability are critical issues. Plant downtime is also critical. G.C. Zarnas has several maintenance contracts with major refineries across the country and works within defined maintenance outages and turnaround schedules to complete a project on time. Zarnas has expertise with many refineries across the country. In fact, several of our maintenance contracts have developed into 20-plus year partnerships.

Power Generation


We understand the unique problems encountered by plant engineers and recognize that the life of a power or nuclear plant often exceeds the life of the equipment and structure itself. We will support you during plant shutdown and regular maintenance periods. Our inspection services are available to evaluate the use of protective coatings and fireproofing to extend the life of the equipment and plant. 

Pulp and Paper

sector-pulp-paper crop

Resistance to wear within Pulp and Paper industrial processes is of utmost importance. The products processed through this machinery can be extremely abrasive and will quickly wear out the components and parts that they come in contact with. Zarnas’s experienced applicators are trained to be self-sufficient and to provide any corrosion control system that may be required at your mill’s site.


Steel crop

A little corrosion may not seem like much, but the results – inoperative equipment, increased downtime and loss of productivity – are expensive. The correct repair or replacement of damaged coatings and linings can dramatically increase the life of your company’s investment and keep your long-term costs down. G.C. Zarnas is highly experienced in the steel industry, as evident of their years of service as the in-house maintenance contractor for all of Bethlehem Steel’s operations throughout the country.

Storage Vessels

Storage Vessels crop

From water to natural gas, G.C. Zarnas has years of experience in tank linings and coating the exterior of process vessels, storage tanks, concrete structures and chimney flues. Increasingly, many of our clients are creating art out of these infrastructures so it’s attractive as well as functional. We are proud to work with many major water, power, natural gas and fueling stations to maintain their tank farms, while beautifying the appearance for their surrounding communities. We are continuously awarded multi-million dollar contracts to perform tank linings at major refineries to highly-secured government locations.

Water and WasteWater Treatment

Water and Wastewater crop

Every day, your equipment is exposed to a corrosive environment. Virtually every piece of equipment and every structure needs protection. Zarnas has successfully applied corrosion-resistant exterior coatings and interior linings to structural steel, vessels, scrubbers, pipe, duct, valves, carbon filters, thickeners and clarifiers over the last five decades. Our industry leadership is the result of the full range of services and the high level of quality we provide to our customers.