Coastline Coating Services

Precision Coating. Proven Protection.

At Coastline Coating Services, we help contractors and property owners protect their HVAC investments for the long haul. By applying Infiniguard Coating to every inch of your unit—inside and out—we prevent corrosion, boost efficiency, and extend the life of your system. Keep your equipment running stronger, longer—with Coastline Coating Services.

our product

A gallon bottle of Ininigard HVAC-R coating placed on a workbench, with various cleaning and maintenance tools in the background.

Infiniguard® coats every critical component — including coils, cabinets, tubing, and electrical panels — forming a seamless barrier against corrosion, moisture, and contaminants. No surface is left exposed.

Full protection

extreme durability

With a dry film thickness of just 0.5 mils, this thin yet powerful coating resists salt, UV rays, abrasion, and chemical exposure. It’s built to last in even the harshest coastal and high-humidity environments.

stops odor

Infiniguard seals out moisture and organic buildup, two of the biggest causes of HVAC odor. By creating a protective barrier, it prevents the growth of mold, mildew, and bacteria—keeping units cleaner, fresher, and more pleasant to run.

boosts efficiency

By reducing friction and improving laminar airflow across coils, Infiniguard® increases system efficiency by 8–13%. Units run smoother, use less energy, and experience less wear over time.

siloxane based

Infiniguard® uses a siloxane-based, inorganic coating that chemically bonds to metal at the molecular level. Unlike traditional organic coatings, it won’t peel, crack, or degrade.

fda certified

Once cured, Infiniguard® is FDA-certified for food preparation surfaces, making it safe for use in sensitive areas. It can be applied to both new and existing units — even directly in the field.

our promise

At Coastline Coating, we promise fast, reliable service without cutting corners. From deep cleaning to full-coverage spraying, we treat every unit like it’s our own — delivering lasting protection, boosted efficiency, and results you can count on.

full coverage spray

Line drawing of a butterfly with symmetrical wings and body, using bold outlines and internal lines for detail.

We don’t cut corners. Our spray coats the electrical panel, cabinet, tubing, and coils, inside and out - covering every critical surface to lock out rust and extend the life of your HVAC units.

increased efficiency

Icon of a lightning bolt with three horizontal lines indicating speed or power.

Our coating doesn’t just protect — it performs. By reducing corrosion and buildup, our treatment boosts HVAC efficiency by 8–13%, helping systems run smoother, cooler, and with less strain.

A black silhouette of a woman standing with an arched back and hands on her hips, against a white background.

5 year warranty

We stand behind our work. Every coating comes with a 5-year warranty, guaranteeing long-term protection and peace of mind for you and your HVAC investment.

Black and white illustration of a person sitting at a desk, working on a computer, with books and a coffee mug.

deep clean service

Before we coat, we clean — thoroughly. Our deep clean service removes dirt, grease, and debris from coils, cabinets, and components to ensure maximum adhesion and long-lasting protection.

Black square with the words "The End" in white text

24 Hour Turnaround

We know time is money — that’s why we guarantee a full coating process completed within 24 hours. Get your HVAC units protected from rust fast, without slowing down your schedule.

removes dirty sock

Black and white line art illustration of a cat's face, focusing on the eyes, nose, and whiskers.

That sour “dirty sock” smell doesn’t stand a chance. Our siloxane-based inorganic coating creates a non-porous barrier that stops bacteria and mold from clinging to coils — eliminating odors at the source.

our process

Unload

Every unit begins with care and precision. As HVAC units arrive, our team safely unloads each one using a dedicated forklift to prevent damage and ensure an organized workflow. Units are placed in a designated staging area, setting the foundation for a smooth, efficient coating process from start to finish.

deep clean

Every unit goes through a rigorous cleaning process to prepare for coating. This includes a full degreasing to break down oil and grime, high-pressure power washing to remove dirt and debris, and thorough drying. By starting with a spotless surface, we ensure maximum adhesion and long-term durability of our protective coating.

complete coating

Once cleaned and dried, each unit receives our siloxane-based, rust-preventative coating. We spray the electrical panel, cabinet, tubing, and coils, inside and out, ensuring every critical surface is sealed. Our inorganic formula creates a tough, non-porous barrier that defends against corrosion, improves efficiency, and eliminates odor.

repackage and load

After coating, each unit is carefully reassembled, reboxed, and securely strapped for transport. We finish by applying our official 5-Year Warranty sticker, a mark of quality and protection you can trust. Units are then organized and loaded with care, ready for delivery — cleaned, coated, and guaranteed to last.

A forklift transferring large boxes onto a pickup truck outdoors with trees in the background.
Person cleaning a black Goodman air conditioning unit using a pressure washer, with a CoilPro refrigerant recycling machine nearby on a wet asphalt surface, parked cars, and a small white trailer in the background.
A person is using an HVAC refrigeration tool inside an open refrigeration unit with copper pipes and electrical wires visible, surrounded by steam or condensation.
Stack of large cardboard boxes in a workshop with tools and equipment on shelves and a compressor machine in the background.

Trusted Across The Carolina Coast

  • INFINIGUARD®-coated lab samples show virtually no coating degradation after exposure to 3 times the industry standard for cyclical corrosion.

    -Assured Testing Services

  • A typical duration for SAE J2334 is 40 cycles per most John Deere and Caterpillar (CAT) specifications. Following exposure to 120 cycles (120 days), INFINIGUARD® had 1 panel with a maximum of 3 percent corrosion. In comparison, the competitor’s panels had a minimum of 8% corrosion.

    -Assured Testing Services

  • After 12,000 hours of salt spray exposure, INFINIGUARD® exhibited far less oxidation and coating degradation when compared to the competitors.

    -Assured Testing Services

  • INFINIGUARD® coating subjected to the exposure of 12,000hrs at a thickness of 12 micron shows only minor visible defects. The majority of automobile frames and components are coated with e-coat around the 20-40 microns thick and rarely last longer than ~5000hrs in salt spray.

    -Assured Testing Services

Ready to Protect Your HVAC Units?

 

Location
3128 Kitty Hawk Rd. Wilmington, NC 28451

Hours
Monday–Friday
9am–5pm

Phone
(910) 622-0013