Have you ever noticed rust or discoloration on your AC90 cable armor?
In many industrial and outdoor environments, corrosion on cable armor is not just a cosmetic issue-it can seriously compromise cable performance, cause costly downtime, and even lead to safety hazards.
Understanding why AC90 cables corrode and how to effectively protect them is essential for maintaining long-term system reliability. Let's explore how you can prevent corrosion before it becomes a major problem.
What Is AC90 Cable?
AC90 cable is a type of armored electrical cable widely used in commercial and industrial applications.
It features an aluminum interlocked armor layer that provides mechanical protection and eliminates the need for conduit in many installations.
Key advantages of AC90 cable include:
- Excellent mechanical strength and flexibility
- Easy installation in dry and limited-space environments
- Reliable grounding through the armor layer itself
However, while the aluminum armor provides strong protection, it is susceptible to corrosion under certain conditions-especially in humid, chemical, or marine environments.
Where Does AC90 Cable Corrosion Come From?
Corrosion of the AC90 cable armor layer typically originates from a combination of environmental and chemical factors, such as:
- Moisture & Humidity – Continuous exposure to water vapor or condensation leads to oxidation of the aluminum armor.
- Salt or Chemical Atmospheres – In coastal or chemical plants, high salinity or acid gases accelerate corrosion.
- Electrochemical Reactions – Contact between aluminum armor and dissimilar metals creates galvanic corrosion.
- Improper Installation – Damaged insulation, unsealed terminations, or poor grounding can expose the armor to contaminants.
Over time, these factors weaken the protective layer, leading to visible rust spots, cracking, or armor degradation.
The hazards of armor corrosion
When the armor layer of an AC90 cable corrodes, it can cause serious problems such as:
- Reduced mechanical protection – armor loses strength and flexibility.
- Increased electrical resistance – poor grounding or potential short-circuits.
- Safety risks – possible overheating or fire hazards in extreme cases.
- Higher maintenance costs – frequent replacements and downtime.
Even minor corrosion, if ignored, can compromise the entire cable system's reliability.
How to Solve AC90 Cable Armor Corrosion
Fortunately, corrosion is preventable with the right protection strategy. Here are some proven solutions:
- Apply Professional Anti-Corrosion Coatings
Special protective coatings form a durable barrier against moisture, salt, and chemical exposure.
- Use Anti-Corrosion Tapes and Sealing Systems
Protective wrapping tapes and sealants can isolate the armor layer from external corrosive elements.
- Ensure Proper Cable Termination and Sealing
Tight, waterproof terminations prevent moisture ingress and galvanic contact.
- Choose Enhanced AC90 Cable Materials
Upgraded cable designs with improved alloy formulations or additional protective layers extend service life significantly.
Why Choose Dongguan Greater Wire & Cable Co., Ltd.
At Greater Wire & Cable, we specialize in advanced corrosion protection solutions for AC90 and other armored cables.
Our advantages include:
- High-performance anti-corrosion coatings and sealing materials
- Durable protective tapes designed for harsh industrial and marine environments
- Professional technical support for both small and large projects
- Comprehensive service – from cable selection to installation guidance and after-sales support
Whether you are working on a new installation or upgrading existing systems, Greater Wire & Cable provides reliable, cost-effective, and long-lasting corrosion protection for your AC90 cables.
Contact Us Today!
Let's make your cable systems safer, stronger, and longer-lasting.
Contact us for consultation, product information, or technical support.
Dongguan Greater Wire & Cable Co., Ltd.
📱 Tel / WhatsApp / WeChat: +86 135 1078 4550 / +86 136 6257 9592
📧 Email: manager01@greaterwire.com