Engineered to protect critical infrastructure, gas pipelines, and municipal water logistics networks.
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. We specialize in buried pipeline detection services and pipeline coating field application services, providing end-to-end solutions for heavy industries.
CYCT has dedicated decades to the R&D, production, and sales of pipeline corrosion protection materials. Through partnerships with leading R&D institutes such as the CNPC Pipeline Science Research Institute, CYCT is capable of providing in-service pipelines with varied technical services, including design schemes, cathodic protection, rehabilitation projects, and integrated safety systems.
CYCT owns leading testing and R&D capabilities, a professional R&D team, and a national CNAS-accredited laboratory. This setup ensures that every OEM PE wrap-around sleeve produced meets global structural safety and long-term compliance protocols.
An in-depth look into the chemical cross-linking, thermal kinetics, and material properties of pipeline joints.
Polyethylene (PE) wrap-around sleeves rely on radiation cross-linking technology. Changing linear polymer chains into an interconnected three-dimensional network gives the backing material a strong structural memory. This memory drives the shrink mechanism when heat is applied.
The inner layer uses an engineered copolymer hot-melt adhesive. This layer bonds tightly to the pipe's steel surface and adjacent 3LPE/FBE factory coatings. It resists shear force and cathodic disbondment up to 85°C, ensuring the pipeline remains protected against moisture and chemical attack.
CYCT's PE wrap-around sleeves undergo testing under thermal stress and environmental aging. Designed to match the 30-year operational life of pipelines, they exceed standard requirements in weathering, soil stress resistance, and tensile strength stability.
In midstream energy transmission, buried oil, gas, and water pipelines are exposed to mechanical stress, high temperatures, and chemical attack. While factory-applied coatings like 3LPE offer excellent protection, the field joint coating (FJC) remains a vulnerable point during construction. Poorly protected joints lead to water ingress, accelerated local corrosion, and pipeline failures.
Our radiation cross-linked PE wrap-around sleeves resolve this issue. They shrink tightly onto the pipe to create a continuous barrier that resists mechanical friction, soil stress, and cathodic disbondment. This design provides high reliability for field installation.
CYCT provides custom solutions for diverse pipeline diameters, thicknesses, and operational temperature profiles.
As a seasoned manufacturer, CYCT supports customization of wrap-around sleeves to match project requirements. Whether you require thick PE backing for rough terrain or a low-activation-temperature adhesive for cold climates, our engineering team will design the right solution.
Our CNAS-accredited laboratory performs rigorous testing on every batch of PE wrap-around sleeves, evaluating:
Cathodic Disbondment Resistance: Tested to ASTM G42 and ASTM G8 standards at 23°C and 80°C.
Peel Strength: Evaluated against steel and factory PE coatings to verify bond strength.
Impact Resistance & Indentation: Ensuring durability under rock backfill loads.
Providing pipeline corrosion protection across diverse global environments.
Conditions: Soil temperatures up to 70°C, high salinity, and high soil stress.
Solution: We supply high-temperature PE wrap-around sleeves with customized shear-resistant adhesives. These prevent slippage and cathodic disbondment in sandy soils.
Conditions: Sub-zero installation temperatures and freeze-thaw cycles.
Solution: Low-temperature installation sleeves that retain flexibility and crack resistance, preventing brittle failure in cold climates.
Conditions: Constant humidity, heavy rains, and wet trench installations.
Solution: Viscoelastic tape coatings and moisture-tolerant primers that provide strong adhesion and long-term corrosion prevention.
CYCT has built long-term supplier relationships with major energy operators, including PetroChina, Sinopec, PipeChina, China Gas Group, and Indian Oil. Our products are approved for critical gas and oil pipelines worldwide, and we are an active Council Member of the Chinese Society for Corrosion and Protection (CSCP).
CYCT's advanced machinery ensures high production capacity, strict quality control, and fast delivery.
A trusted manufacturer with certified compliance, high-tech recognition, and industry memberships.
CYCT holds the Qualification Certificate of Corrosion Protection Construction, the Qualification Certificate of Pipeline Detection, and is recognized as a State-Level High-Tech Enterprise with more than ten proprietary intellectual property rights. We are a Corporate Member of the China Association of Petroleum Engineering Construction (CAPEC), an active member of AMPP, and a stable supplier for PetroChina, Sinopec, China Gas Group, and Indian Oil.
Next-generation R&D focusing on sustainability, composite coatings, and real-time degradation monitoring.
Integrating nano-fillers into hot-melt formulations to increase cohesive strength, reduce cold flow, and improve performance under high soil stresses.
Developing hybrid PE/PU wrap-around systems that offer the strength of polyolefins combined with the fast-curing properties of polyurethanes.
Embedding flexible conductive grids into backing layers. These grids allow operators to monitor coating thickness, moisture ingress, and localized strain using non-destructive inspection tools.
R&D focused on plant-derived tackifiers and biodegradable polyolefin formulations that reduce the environmental footprint during pipeline decommissioning.
Sourcing, application, and structural details of PE wrap-around sleeves.
Explore our range of pipeline repair systems, hot-melt fillers, and structural reinforcements.
CYCT
