External Corrosion Protection Coatings for Buried Pipelines
Soil Corrosion Prevention for Buried Oil, Gas, and Water/Wastewater Pipelines
We coat the exterior of buried oil, gas, and water/sewer pipelines with high-elongation polyurea to counter soil corrosion and ground stress.
What risks are buried pipelines exposed to?
They are exposed to soil corrosion, ground stress, and backfill impact, requiring external anti-corrosion coating.
Buried pipelines, such as oil and gas pressure pipelines and water/sewer pipes, are continuously exposed to corrosive soil, moisture, ground pressure, and backfill impact. Polyurea, with its high elongation of 300-450%, accommodates ground stress and thermal expansion. Its rapid curing allows for immediate backfilling after application, and when used in conjunction with a cathodic protection (CP) system, it minimizes coating defects.
Are there any actual application cases?
We have international project experience in Azerbaijan, Thailand, Saudi Arabia, Indonesia, Oman, Alaska, and more.
We have carried out international projects including external coating for buried pipelines in Azerbaijan (passed ground pressure test), external anti-corrosion for pipes in Thailand, Saudi Arabia, and Indonesia, external anti-corrosion for downhole casing in Oman, and external insulation and lining for crude oil pipes in Alaska.
※ HIGHCOATIC's external coating projects for buried pipelines are primarily international. The approach of manufacturing and supplying new steel pipes pre-coated with polyurea (used by some competitors) differs from HIGHCOATIC's on-site spray external coating.
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Site Consultation
The applicable method and cost vary depending on site conditions. Please leave your site information, and our representative will review it and contact you.
108 Munhwa-ro, Idong-eup, Cheoin-gu, Yongin-si, Gyeonggi-do
TEL 031-338-3689 · FAX 031-339-3689
Applied Products
Product selection varies based on site conditions and performance requirements. Start by reviewing the fundamental properties of polyurea and the distinctions between application methods.
Related Projects
View all case studies in this fieldFrequently Asked Questions
What are the differences between SIPP, CIPP, and PVC lining methods?
CIPP is a cured-in-place method for large pipes, SIPP is a spray-in-place method for small pipes, and PVC lining involves adhering an internal sheet. While most companies specialize in only one rehabilitation method, HIGHCOATIC can handle all three, allowing us to select the optimal method tailored to specific site conditions.
What is polyurea?
It is an elastic coating material developed by Texaco in the early 1980s in the United States. It boasts an elongation of over 400%, concrete adhesion of over 3.0 N/mm², and heat resistance of 120°C for gases and 85°C for liquids. It is widely used for waterproofing, abrasion resistance, chemical resistance, and corrosion protection.
Do you hold environmental certifications?
All products have received eco-friendly certification for use in drinking water and food facilities. They contain 0% volatile organic compounds (VOCs) and have completed certification for use in drinking water and food facilities from relevant authorities in the US, Singapore, Canada, China, and other countries. Additionally, they hold ASTM E84 Class 1 flame spread certification.
What is HIGHCOATIC's relationship with NUKOTE?
HIGHCOATIC is the exclusive distributor of NUKOTE in South Korea. NUKOTE is an industrial protective coating manufacturer headquartered in Texas, USA, supplying over 140 countries worldwide and boasting a product lineup of over 80 types.
How can I request a quote?
Please leave your project details on the Quote Request page, and a representative will review them and contact you. For pipe rehabilitation, please provide the diameter, length, and current condition. For building waterproofing, please provide the area, number of floors, and whether existing waterproofing is present. This information will enable us to provide a more accurate quote. Phone consultations are available at 031-338-3689.
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Buried Pipe External Coating Need a Quote?
Let us know your site's scale and condition, and we will review applicable methods and products and get back to you. Phone consultations are available at 031-338-3689.