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The ultimate corrosion protection for the world’s most extreme and corrosive environments

ZPEX™ is a revolutionary coating system offering complete corrosion protection without over-machining or masking.Thin enough for threads and sealing.
Strong enough to replace stainless steel.

Customers We Proudly Serve:

Thin enough for threads & sealing. Strong enough to replace stainless steel.

ZPEX is a revolutionary coating system that’s half as thick as a dollar bill—making it perfect for tight clearances inside your pumps, valves, and fittings.

Get the industry’s most comprehensive corrosion, abrasion, and efficiency protection without having to over-machine or mask your parts. Just coat, re-assemble, and run as usual.

lifespan of multiple manifold systems

Prolonging Lifespan

ZPEX has increased the lifespan of multiple manifold systems and valves that were historically failing prematurely due to constant immersion in saltwater and H₂S, saving us time and money on repairs and replacements.

Enhanced Reliability with ZPEX

Ecoat.us has solved multiple failure issues. ZPEX has increased the lifespan of multiple manifold systems and valves that were historically failing prematurely due to constant immersion in HCl and salt water, saving us time and money on repairs and replacements. We routinely recommend our customers to Ecoat.us for their customer service and ZPEX coating system.

T. MORGAN, Tiger Trucks, inc

The Ultimate Test for Coatings in the Oil and Gas Industry is Autoclave Testing. Please Click Here to see how ZPEX Out-Performed all Other Major Oil and Gas Coatings.

ZPEX shields your parts against the most common causes of system failures: H₂S gas, HCl, chlorine, salt water, and carbonic acids.

Cost Savings

Save up to 70% by switching from exotic metal alloys to coated carbon without sacrificing strength or reliability.

Defying Elements

Survive long-term in chemically rich & mechanically harsh environments (Like uncoated stainless can’t)

Reduce friction

Reduce friction for faster, smoother fluid flow and less energy consumption

Galling Defense

ZPEX offers a powerful solution to prevent galling of threads, ensuring enhanced performance and longevity.


Protect 100% of your components (even hard-to-reach recesses and threads) against wear and corrosion


Eliminate chipping, peeling, and creep-back of corrosion underneath the coating

The Science Behind ZPEX

A Game-Changer For Industries Where Chemical, Mechanical, And Environmental Challenges Demand The Toughest Solutions.

ZPEX starts by electro-depositing an eighth-generation hybrid polyepoxide coating over a surface that has been meticulously pretreated with zirconium oxide. This initial step creates a chemical-resistant base coat that forms an electro-molecular bond with the substrate. The result is a superior bond that goes beyond the surface, preventing chipping, peeling, and the insidious creep-back of corrosion underneath the coating.

High-density polyepoxide coatings are renowned for their exceptional adhesion and chemical resistance. But they often fall short in environments where abrasion and solids are present . That’s where ZPEX truly shines, taking protective coatings to the next level by incorporating a fluoropolymer layer over the electro-deposited epoxy base coat. This ingenious combination fuses the best qualities of both technologies into a single, uniform layer of protection that’ll keep your parts performing for years to come.’

Revolutionizing Corrosion Protection

ZPEX is a factory applied, proprietary coating system that in most cases can replace stainless steel and other exotic metallurgy.

The ZPEX coating system consists of an electro-deposited epoxy primer (e-coat), cross linked with a fluoropolymer topcoat. The e-coat primer, or Cathodikote (our trademark brand of e-coat), is applied when the part is completely submerged in a series of process tanks tanks with multiple stages for cleaning, rinsing, pre-treatment, and Ecoat. The Ecoat is an electro-deposited epoxy, which is very thin and very chemical resistant, with second to none adhesion to the substrate.

The second part of the process is the fluoropolymer topcoat which crosslinks with the e-coat primer. This coat is selectively spray applied to the fluid/potential corrosion areas of the components. The end result is very even, thin, extremely chemical resistant and slick coating that can be applied to threads, balls, seats, and any other low tolerance areas of equipment within valves, pumps, and manifolds.

the coating properties of ZPEX
are unmatched

  • Dry Film Thickness: 1.3-2.0 Mils
  • Max Operating Temp: 550 Deg F.
  • Pencil Hardness: 6H
  • Coefficient of Friction: 0.016 to 0.08
  • Tabor Abrasion (1000 Cycles): 7.3 mg lost
  • Tensile Strength: 3,000 – 4,000 PSI
  • Salt Spray (ASTM B117): 4000 Hrs Minimum
  • H2O(10,000 PSI, 200 Deg. F.): No Effect at any angle.
  • Abrasion Resistance (D4060): 16,200
  • Direct Impact: 100 lbs.
  • Indirect Impact: 120 lbs.
  • Gloss: 45-55
  • Color: Dark Grey
  • Cross-Hatch Adhesion: 5B
  • Gravelometer: 6 Minimum

ZPEX is resistant to the following chemicals:

Acetic Acid
Acetates (ALL)
Amines (ALL)
Ammonium Hydroxide
Amino Acids
Boric Acid
Butyl Alcohol
Butyl Cellosolve
Butyric Acid
Calcium Chloride
Calcium Hypochlorite
Carbon Tetrachloride
Cetyl Alcohol
Chlorides (ALL)
Chlorine Gas
Chromic Acid (NR)
Citric Acid
Diesel Fuel
Ethyl Acetate
Ethyl Alcohol
Ethyl Ether

Glycol Ether
Hydrochloric Acid
Hydrochloric Acid
Hydrogen Peroxide 5%
Hydrogen Sulfide
Isobutyl Alcohol
Isopropyl Alcohol
Lactic Acid
Lauryl Acid
Maleic Acid
Methylene Chloride
Methyl Ethyl Ketone
Methyl Isobutyl Ketone
Mustard Gas

Perchloric Acid
Phenol 85%
Phosphoric Acid
Potassium Chloride
Potassium Hydroxide
Propyl Alcohol
Propylene Glycol
Salicylic Acid
Salt Water
Sodium Bisulfite
Sodium Chloride
Sodium Hypochlorite 5%
Sodium Hydroxide <10%
Sodium Sulfate
Stearic Acid
Sulfuric Acid 25-28%
Sulfates (ALL)
Sulfates (ALL)
Sulfates (ALL)

Case Study

Frequently asked questions

Absolutely! If you’re looking for sample FAQ questions or guidance on creating effective and informative FAQs.
What is Zpex?
Zpex is a system of coatings, that when applied and cured at a specific temperature, crosslinks together to create a barrier coating that is thin enough to be applied to threads and sealing surfaces, yet corrosion resistant enough to replace exotic metallurgy like stainless steel.
Is Zpex a spray applied process or a dip process?
Zpex is actually both. The primer, or base-coat for Zpex, is an immersion coating applied within a series of tanks. Here the part will be fully encapsulated throughout multiple automated stages that include cleaning, pretreatment and an epoxy coating applied by electro-deposition,. afterwords going through a cure cycle.
Is the topcoat a powder or wet spray application?

The top coat for the Zpex Coating System is a fluoropolymer, wet spray application that is
selectively applied to the ‘working’ surfaces of the part. Followed by another final bake cycle that
crosslinks the primer and topcoat together, creating a very dense, very thin coating system.

How thick is the Zpex coating?

Zpex is typically applied at around 1.3-2 mils thick, about half the thickness of a dollar bill. 

In comparison to other coatings used around the oil field, like 3 part epoxy systems and powder coatings, how does the thickness of Zpex compare?

In comparison to those types of coatings, Zpex is certainly very thin. Most powder systems are
applied at anywhere from 5-10 mils thick, and most 3 part epoxy systems at around 10-14 mils
thick. Both far too thick to be internally applied to valve components that include seat pockets
and threads.

When coating valves, do the valve components need to be masked or over machined in order for the parts to be re-assembled?

No, thats actually one of the key advantages of using Zpex. Because the coating is so thin, no
additional over machining or masking is necessary. Which means no additional cost for machine
time, and no creating of an edge, which, when masking is necessary, is the first place corrosion is
going to attack.

To what surfaces can Zpex be applied?

Zpex can be applied to any surface that is conductive. We most typically apply Zpex to carbon steel or cast iron in replacement of stainless steels, however, somewhat often, we will apply Zpex to stainless steel also

Your equipment and infrastructure investments are vital.

We’ll make sure they don’t turn into liabilities with ZPEX.