ERW tube is a utensil with a hollow cross section. Due to this, it is used extensively to transport fluids. When moving water, coal gas, natural gas, oil, and other materials, exterior factors affect the tubes. Examples of these include weather and geological conditions. As a result, they can corrode. This is something you must prevent. We can help with that, sharing our experience as the top ERW steel tube supplier in the West Midlands.
The best way to protect tubing is to get an anti-corrosion coating. You can densely and evenly coat the tube’s exterior to isolate it from multiple media. It is among the most basic methods of protecting steel tube. There are all kinds of anti-corrosion coatings, each with specific performances and uses. We’re going to go through some of them here so you know what to expect.
Epoxy
Firstly, we have epoxy. These anti-corrosion coatings are used extensively for the protection of outer and inner tube walls. They have the benefits of acid and alkali resistance, as well as strong adhesion. Also, there is a low shrinkage rate.
The downside of epoxy is that it can have poor weather resistance. Water resistance isn’t the best either in some cases.
Asphalt
Secondly, is asphalt. The raw materials of this coating aren’t hard to get. The pricing is also low, and it resists the corrosion of dilute alkali and dilute acid at room temperature. The paint film dries swiftly and comes with fine elasticity. As such, it’s a popular choice for a waterproof layer.
The primary purpose of asphalt coating is the anti-corrosion and waterproofing of underground tubing systems. When using it for these applications, it tends to have a glass cloth covering. If you want tubes from the top ERW steel tube supplier in the West Midlands, speak to us.
The main drawback with asphalt coatings is they have a hydrocarbon structure and can dissolve on contact with some organic materials. Moreover, they can react and decompose under strong oxidants. Asphalt can’t resist organic solvents either.
Acrylic or polyurethane coating
Then there is acrylic or polyurethane. The coatings resist abrasion, water, oil, and alkali. Being anti-corrosion coatings, there’s primarily a one-component moisture-curing type, hydroxyl curing type, and two-component catalyst curing type.
To enhance specific features, you can use them in tandem with asphalt, epoxy resin, and other materials. The polyurethane asphalt paint has decent water resistance and fast curing. Thus, you can use it for the anti-corrosion coating of the inner wall of the pressure water tubing system of power stations. Additionally, it comes in handy for the inner wall of underground steel tubes for water injection wells in oil fields.
Olefin
Next is olefin. These coatings are mainly composed of resins holding propylene or ethylene molecular structures. There are also modified resins and fillers. They come with great weather, alkali, acid, and water resistance. Talk to us if you need help from the finest ERW steel tube supplier in the West Midlands.
Perchloroethylene
Up next is perchloroethylene. This is a type of coating mainly used in chemical tube systems. It works to stop atmospheric corrosion. The downside is that it has poor adhesion. However, you can enhance that feature with epoxy resin.
Chlorinated rubber
This coating is made thanks to the chlorination reaction of synthetic or natural rubber in an organic solvent. Characteristics include it being more resistant to corrosion of dilute acids and alkalis. It’s also flame retardant, and has good resistance and permeability.
The number one ERW steel tube supplier in the West Midlands
At Union Steel Tubes, we have an extensive list of high quality merchandise available. Therefore, our team has the means to provide what you need. Something else we can do prepare orders quickly. Stock items often come with next day delivery. In some cases we can deliver urgent orders the same day.
So, if you need help from the foremost ERW steel tube supplier in the West Midlands, let us know. We can even advise about addressing corrosion.
