Fastener Corrosion Comparison

Frequently Asked Questions

What causes industrial fastener coating corrosion, and how can it be prevented?

Many industrial environments expose fasteners to aggressive factors like salt fog, chemical sprays, and moisture, which accelerate corrosion of coatings such as zinc or cadmium plating. We mitigate industrial fastener coating corrosion by applying advanced fluoropolymer coatings that form a durable barrier and resist attack by corrosive elements. For example, our FluoroKote#1 fastener coating has been shown to withstand 2,000 + hours in ASTM B117 salt-fog tests with no noticeable degradation.

Why are fluoropolymer coatings superior to traditional zinc or cadmium plating for corrosion protection?

The benefits of fluoropolymer coatings include a chemically resistant top coat, a metallic base coat for exposed areas, and full coverage even inside nuts and threads. This multi-layer system delivers far better protection against industrial fastener coating corrosion than zinc or cadmium plating, which often fails under harsh conditions.

What is the role of our FluoroKote#1 fastener coating in reducing maintenance and downtime?

By using FluoroKote#1 fastener coating on assemblies, we reduce the risks of seizing, galling, and corrosion-related lock-up of fasteners. Because the coating offers easy “on/off” performance and withstands extreme exposure, we help minimize maintenance, avoid torching or cutting of frozen fasteners, and thereby reduce downtime and labor costs.

How does our FluoroKote#1 process work?

Our FluoroKote#1 coating process begins with strict surface cleaning to remove oils, rust, and scale. Then we apply a metallic base coat, followed by an adhesion coat, and finally a heat-cured topcoat made of fluoropolymer (containing PTFE) to seal the components. This layered method ensures complete protection and full coverage of fasteners, including the interior of nuts.

In what types of industrial applications do we use FluoroKote#1 fastener coating to combat corrosion?

We apply FluoroKote#1 fastener coating in demanding environments such as oil & gas, petrochemical plants, water-works, chemical processing, and military/defense applications. These settings are prone to industrial fastener coating corrosion, and our fluoropolymer-based coating system addresses that challenge effectively.

What test results demonstrate the corrosion resistance of our FluoroKote#1 coated fasteners?

In salt-fog exposure (ASTM B117) and other aggressive chemical tests, fasteners with FluoroKote#1 fastener coating exhibited no noticeable deterioration even after thousands of hours. Conventional coatings, such as hot-dip galvanized or zinc-plated, showed severe corrosion and failure much earlier in the same tests.

Does our coating process affect the torque and assembly performance of fasteners?

Yes. Among the benefits of fluoropolymer coatings is a low coefficient of friction, which reduces the required torque during assembly. With FluoroKote#1 fastener coating, we enable tighter fits with less effort and reduced risk of galling or thread damage, contributing to reliability and safety.

What sizes and types of fasteners can we coat with our FluoroKote#1 process?

We service a wide range of fasteners — including B7 studs, threaded rod, and 2H nuts — in various sizes, from small to over 1000 lbs per piece. Our FluoroKote#1 fastener coating process is scalable and suited for both standard and large heavy-duty industrial fasteners.

How do we ensure consistent quality in dealing with industrial fastener coating corrosion risks?

We control our FluoroKote#1 fastener coating process via strict quality-control procedures: monitoring cure, thickness, adhesion, and full coverage. We ensure even inside threads and maintain documented control of chemicals and temperatures. This ensures that industrial fastener coating corrosion risks are managed through process reliability.