What’s the Best Coating for Your Corrugated Steel Pipes?

If you’re looking to invest in some new corrugated steel pipes that are already coated, or if you’re looking to get some of your current pipes coated, it’s beneficial to have a clear understanding of the different types of coating available for these pipes. Well-coated pipes last much longer and can better withstand the elements in a variety of different climates and conditions. To help you learn more about coating options, here are some of the most common types of coatings you’ll find and some of their individual benefits:

Zinc Coating (Galvanized Coating)

Zinc coating, sometimes referred to as galvanized coating, is a great choice if you want your corrugated steel pipes to last longer. It helps prevent rust and corrosion, and it increases the usable life of your pipes to between 50 and 100 years. This is the most affordable coating option available.

Asphalt Coating

Asphalt coating can be added internally and externally to pipes. It increases the life of your pipes to around 75-100 years and can help with hydraulics, depending on your needs. It’s the right choice if you’re concerned about preserving soil conditions.

Polymer Coating

Polymer coating is ideal for pipes used in drains and culverts. It increases the usable life of your pipes to around 100 years, and it does a fine job of protecting against abrasion and rust. It’s not uncommon to find a layer of polymer coating on top of pipe that has already been coated in zinc.

Aluminum Alloy Coating

This type of coating doesn’t increase the weight of pipes as much as other types. It’s perfect for underground water storage, storm sewers, and other drainage projects. Aluminum alloy coating extends the life of pipes to around 75 years.

Aluminized Steel Type 2 Coating

If you’re looking for the most strength and durability possible, this is your best bet. It combines the strength of steel with the extra durability of aluminum. It adds about 0.0019 inches of thickness on both sides of pipes and consequently adds a bit more weight to pipes than other options.

We hope we've shed some light on possible coating options for your corrugated steel pipes to help you make the best investments moving forward. Make sure you check out some of your pipe options on our marketplace if you're in the market for some corrugated steel pipes!