Engineered to comply with ISO 21809-3, EN 12068, and NACE/AMPP requirements. Explore our primary OEM-grade products built for critical pipeline asset integrity management.
CYCT is a state-level high-tech enterprise integrating Research & Development, Production, Sales, Buried Pipeline Detection, and Coating Field Application services into one coherent entity. For decades, CYCT has dedicated itself to resolving the world's most challenging pipeline integrity threats through the development of premium corrosion control systems.
Equipped with a national CNAS-accredited laboratory and an elite team of materials scientists, CYCT serves as a primary, stable supplier for top-tier global state enterprises including PetroChina, Sinopec, PipeChina, and municipal gas transmission pipeline operators.
"CYCT owns leading testing and R&D capabilities, a professional R&D team, and a national CNAS-accredited laboratory."
Corrosion remains the single largest driver of operational expenditure and risk in fluid logistics. Our products are engineered as multi-barrier protection systems.
Designed for long-term protection of complex geometries, irregular joints, and valves. Viscoelastic tape offers immediate adhesion, cold-flow self-healing capabilities, and complete impermeability to gas and moisture. Excellent for rehabilitation of steel pipe joints.
Cross-linked high-density polyethylene backing backed by a heavy-duty shear-resistant copolymer adhesive. Available in 60°C and 80°C variants (FRDP/FRDS) designed to bond seamlessly with mill-applied 3LPE or FBE coatings. Provides optimal cathodic disbondment resistance.
For Trenchless Horizontal Directional Drilling (HDD) and rocky terrain pipelines, our Glass Fiber Reinforced Polymer (GFRP) structural sleeves and photo-curing protective layers provide high mechanical impact, abrasion, and shear protection to prevent primary coating gouges.
CYCT is not just a manufacturer; we are a strategic partner providing technical consultation, cathodic protection integration, and field diagnostics.
Modern oil, gas, water, and chemical pipelines operate under demanding temperature cycles, diverse soil compositions, and extreme stress profiles. Field joints (girth welds) represent the most vulnerable interface of any transmission line. Standardizing on high-grade materials reduces failure rates and minimizes cathodic protection energy losses over decades.
At CYCT, we collaborate directly with leading engineering organizations like the CNPC Pipeline Science Research Institute. This partnership allows us to design high-performance polymers and adhesives that resolve the exact physical and chemical degradation modes seen on long-distance transmission lines.
Our manufacturing plants operate high-speed automated extrusion lines, radiation cross-linking chambers, and precision adhesive coating machinery to ensure consistent thickness, backing recovery, and peel strength properties across all manufacturing batches.
Our products have been specified in massive cross-border pipelines, complex municipal gas grids, subsea pipelines, and offshore jetty structures across Central Asia, Southeast Asia, South America, and the Middle East.
CYCT is a proud member of the Council in Chinese Society for Corrosion and Protection (CSCP), holds Qualification Certificates of Corrosion Protection Construction, Qualification Certificates of Pipeline Detection, and is a corporate member of the China Association of Petroleum Engineering Construction (CAPEC).
Different geographies require tailored material properties. CYCT designs formulations optimized for specific operational climates.
Challenge: Extremely high pipeline operating temperatures (up to 80°C) coupled with rocky, abrasive backfill soil.
Solution: We apply our high-temperature PP heat shrink sleeves or viscoelastic tapes backed by rugged mechanical protection shields.
Challenge: Severe shear stress and potential gouging of the joint coating during the pull-back operation of directional drilling.
Solution: Application of GFRP structural reinforcement layers and photo-curing sleeves over the primary heat-shrinkable sleeve.
Challenge: Continuous exposure to saltwater, high hydrostatic pressure, and moisture permeation threats.
Solution: Heavy-duty Viscoelastic mastic systems and 3LPE equivalent heat shrink sleeves offering zero-permeability performance.
As global energy infrastructure transitions toward hydrogen, bio-fuels, and carbon capture (CCUS), pipeline safety demands next-generation materials.
The future of pipeline integrity lies in **smart coatings** and **advanced polymeric chains**. CYCT is currently researching and developing several key technical breakthroughs to prepare for the energy infrastructures of 2030 and beyond:
Through our partnership with CNPC, Sinopec, and global laboratory networks, we guarantee that our materials remain at the forefront of global standardizations (including ISO 21809-3 and AMPP SP-0169).
Answers to technical, commercial, and operational questions from pipeline operators, engineering consultants, and procurement managers.
Viscoelastic tape consists of non-crystalline, low-viscosity polymers that flow into micro-cavities on the steel surface, offering immediate physical self-healing properties and requiring minimal surface preparation (SSPC-SP2/SP3). Heat Shrinkable Sleeves (FRDP/FRDS) utilize radiation cross-linked high-density polyethylene backing with high shear-resistant adhesives, providing superior mechanical resistance against soil stress, impact, and shear. Sleeves generally require higher surface preparation (typically ISO 8501-1 Sa 2.5).
Yes, our entire line of heat shrinkable sleeves (FRDP/FRDS) and viscoelastic tapes is fully compatible with standard factory-applied coatings such as Three-Layer Polyethylene (3LPE), Three-Layer Polypropylene (3LPP), and Fusion Bonded Epoxy (FBE). Our multi-layer joint protection systems replicate the chemical and mechanical structure of these parent coatings to prevent delamination.
Our products undergo testing under ISO 21809-3 and ASTM G42/G8 standards. We utilize proprietary formulation techniques for our copolymer adhesives and viscoelastic bases to prevent cathodic disbondment under active Cathodic Protection (CP) systems, even at elevated operational temperatures up to 80°C.
When stored in a dry, ventilated area away from direct sunlight and at temperatures below 35°C, our heat shrinkable sleeves and viscoelastic tapes have a shelf life of up to 2 years from the date of manufacture, maintaining full adhesion and physical characteristics.
Full collection of mastic tapes, repair sticks, visco-elastic coatings, and polyester shrink tubing for standard and custom engineering projects.
CYCT