Explore our industrial pipeline protection tapes, sleeves, and fillers certified to meet ISO 21809-3 and EN 12068 standards.
CYCT New Materials Company Limited (for short, CYCT) is a state-level high-tech enterprise integrating R&D, production and sales of pipeline corrosion protection materials as well as buried pipeline detection service and pipeline coating field application service into one. Established in 2000, we have dedicated ourselves to the development and global supply of pipeline corrosion protection solutions for decades.
By maintaining strong R&D partnerships with authoritative research institutes, including the CNPC (China National Petroleum Corporation) Pipeline Science Research Institute, CYCT delivers specialized, project-specific technical services. Our comprehensive scope covers buried pipeline health monitoring, cathodic protection designs, network rehabilitation projects, and complete integrated safety solutions.
We are recognized as a council member of the Chinese Society for Corrosion and Protection (CSCP) and a corporate member of the China Association of Petroleum Engineering Construction (CAPEC). Our production facilities and laboratories hold national CNAS accreditation, validating the strict repeatability and precision of our material testing practices.
CYCT serves as a critical supplier of field joint coatings and viscoelastic rehabilitation systems for major national infrastructure players, including:
Our deep market penetration is supported by more than 10 proprietary intellectual property rights, enabling us to continuously develop innovative photocurable sleeves, polyurea coatings, and high-performance viscoelastic matrices.
With class-leading R&D capabilities, a dedicated engineering team, and our CNAS accredited laboratory testing systems, we maintain total control over mechanical and chemical product parameters.
Founded & Manufacturing Since
Accredited National Laboratory
Proprietary Patent Technologies
Active Corporate Member
Understanding the micro-molecular properties of field joint coatings is critical to selecting the appropriate systems. Shrinkable tapes are not simple plastics; they are advanced multi-layered systems engineered to withstand severe soil stress, chemical environments, and high operational temperatures.
The backing of our shrinkable tape consists of high-density polyethylene (HDPE) modified by high-energy electron beam radiation. Cross-linking creates strong covalent bonds between the polymer chains, giving the material a "shape memory effect." When heat is applied, the backing shrinks and applies a constant radial compression force on the pipe joint.
For high-operating-temperature lines (up to 80°C or higher), copolymer hot-melt adhesives provide exceptional shear and peel resistance. When heated, the adhesive melts and flows into the anchor pattern of the steel substrate, curing to form a strong bond with the pipe's mill-applied 3LPE/3LPP coatings.
For moderate temperatures and rehabilitation, mastic-based adhesives offer cold-flow properties that fill surface irregularities. Viscoelastic tapes require minimal surface preparation and self-heal minor mechanical cuts, providing long-term corrosion protection without requiring a primer.
As pipeline operators search for reliable, scalable, and cost-efficient field joint coating solutions, China-based manufacturers like CYCT offer clear technological and supply chain advantages.
Unlike smaller regional packaging converters, primary Chinese factories manage the entire manufacturing cycle in-house. This includes polymer compounding, sheet extrusion, radiation cross-linking, adhesive formulation, and coating. Controlling the raw materials ensures consistent batch-to-batch quality and lowers manufacturing costs.
CYCT operates dedicated high-speed extrusion lines and radiation cross-linking chambers capable of supplying millions of square meters annually. This production capacity enables us to meet tight delivery schedules for transcontinental pipeline networks without compromising quality.
Top-tier Chinese factories offer more than just material supply. Working with institutes like the CNPC Pipeline Science Research Institute, we provide project engineering services, including cathodic protection compatibility studies, field application training, and rehabilitation design schemes.
Pipeline networks run through diverse geological terrains and environmental conditions, requiring custom anti-corrosion systems for each setting.
Pulling pipelines through boreholes exposes field joint coatings to high friction and shear forces. Standard PE tapes can tear or disbond in these conditions. CYCT developed a photocurable fiberglass-reinforced outer sleeve that cures under UV light, forming a hard protective shell over the heat-shrink sleeve to resist abrasion during HDD pulls.
Offshore field joints must withstand hydrostatic pressures and marine environments. Our viscoelastic coating systems, combined with HDPE outer wraps, prevent water ingress and resist cathodic disbondment at deep-sea temperatures.
Export lines carrying crude oil or heated gas run at high operational temperatures. Standard adhesives can soften, leading to soil stress disbondment. Our PP (Polypropylene) based cold-applied tapes and high-temperature heat shrinkable sleeves maintain their shear strength at temperatures up to 100°C.
For operating pipelines with damaged mill-applied coatings, our viscoelastic tapes and PP repair patches allow for fast repairs with minimal surface preparation, reducing downtime during maintenance.
CYCT holds multiple certifications from international standardization bodies, confirming the performance of our pipeline coatings under severe testing criteria.
A closer look at CYCT's specialized machinery, mixing facilities, and large-scale storage systems designed to ensure supply chain stability.
When engineering firms and procurement managers evaluate pipeline coatings, they must verify specific technical parameters. Use this guide to align project specifications with standard manufacturing testing standards:
Under cathodic protection, electrical currents can cause coatings to lift from the steel surface. High-performance heat shrinkable sleeves must show minimal disbondment (typically less than 8-10 mm radius at designated temperatures) when tested according to ASTM G8 or ISO 21809-3 Annex F.
Peel strength defines the bond between the adhesive and the pipe surface. A quality sleeve must achieve cohesive failure rather than adhesive failure when peeled at a specified speed and angle. For 3LPE systems, the target is typically >100 N/cm at ambient temperature.
Soil shifting, thermal expansion, and mechanical settling generate high shear stresses on pipeline joints. High-viscosity hot-melt copolymer adhesives are formulated to resist sliding displacement, preventing wrinkles that can lead to moisture collection and corrosion.
Browse our selection of heavy-duty cold-applied tapes, PVC UV-resistant barriers, viscoelastic solutions, and hot-melt repair fillers.
Get authoritative answers to common technical and mechanical questions about selecting, applying, and testing pipeline shrinkable tapes.
CYCT