Explore our top-tier elastomer, rock wool, and soundproofing insulation ranges designed for industrial pipelines, cryogenic systems, and commercial HVAC networks.
Modern architectural layouts and HVAC specifications demand thermal barriers that mitigate energy losses while preventing moisture condensation on mechanical surfaces. Wholesale Self Adhesive Foil and Foam Duct Wrap engineered by specialized factories represents a multi-tiered structural system designed for exactly these parameters.
By coupling closed-cell NBR/PVC elastomer matrix with high-tensile reflective aluminum foil facings, these wrap systems operate on three distinct thermodynamic principles:
Kingflex Insulation Co., Ltd. is a leading manufacturing and trading combo for thermal insulation systems worldwide. Our research, development, and primary production divisions are strategically situated in Dacheng, China—historically recognized as the capital of green-building materials.
Our foundation rests on the legacy of the Jinwei Group, established in 1979. Spanning over 40 years of continuous growth, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Today, Kingflex is an energy-saving, environmentally friendly enterprise focusing on the R&D, fabrication, and global sales of advanced elastomeric solutions.
Operating 5 high-speed automatic assembly lines with an annual output exceeding 600,000 cubic meters. We are a designated production enterprise certified by the Ministry of Energy and the Ministry of Chemical Industry.
Led by 8 dedicated senior engineers in our R&D division. We specialize in compounding, high-pressure foam foaming, and custom pressure-sensitive adhesive formulations for extreme temperature environments.
Comprising 6 international export sales specialists and 230 skilled production technicians, ensuring smooth communication and flawless processing of commercial logistics for projects across 66 countries.
Purchasing wholesale foam duct wraps directly from Kingflex in China offers significant cost and technical advantages compared to regional suppliers.
Our location in Dacheng, the green building materials capital, grants us direct access to raw nitrile rubbers, PVC matrices, foaming agents, and aluminum foil rolling mills. This integration slashes internal freight costs and eliminates raw material delays.
Thanks to our automated, high-output continuous extrusion lines, we minimize energy waste and labor overheads. These savings translate to more competitive bulk pricing for global distributors and project contractors.
Unlike standard distributors, we adjust foam densities (from 40 to 55 kg/m³), surface finishes (pure foil, grid-reinforced foil, or matte black), and self-adhesive peel strength to match your specific environmental requirements.



Our self-adhesive rubber foam insulation sheet rolls and pre-formed pipe lines are designed to perform reliably across a wide temperature range, satisfying global building and safety regulations.
Specifically developed for large rectangular HVAC metal duct systems, large tanks, and flat surface insulation applications.
| Parameter | Specification Details |
|---|---|
| Material Base | NBR/PVC Elastomeric Blend |
| Available Thicknesses | 6mm to 50mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
| Closed-Cell Rate | > 98% for excellent moisture barrier properties |
| Compression Resilience | > 80% recovery after prolonged load |
Pre-slit or solid cylindrical formulations configured to insulate hot water systems, cooling pipelines, and HVAC chilled lines.
| Parameter | Specification Details |
|---|---|
| Material Base | Closed-cell NBR/PVC matrix |
| Inside Diameter (ID) | 6mm to 114mm |
| Thickness Wall | 9mm to 40mm |
| Thermal Conductivity | ≤ 0.034 W/(m·K) at 0℃ |
| Fire Safety Certification | BS 476, CE, REACH, ROHS, UL94, ASTM |
| Water Vapor Resistance | ≥ 10,000 (μ-factor) |




Kingflex insulation products are certified by independent testing agencies to comply with international construction and safety standards. Every production run is fully traceable back to raw material inputs.
We work closely with global distributors and procurement managers. Our client portal provides direct access to test reports, project submittals, and chemical resistance logs. We maintain open records of standard batch testing to support your localized building inspection and compliance processes.
Kingflex self-adhesive foil and foam systems are deployed worldwide in major commercial, residential, and heavy industrial settings.
Applied to large air ducts in airports, hospitals, and hotels. The factory-applied self-adhesive layer cuts installation times by up to 40% compared to mechanical pinning, while the clean foil facing matches architectural interior styles.
Protects pipeline runs from heavy atmospheric humidity and chemical drift. The closed-cell elastomer resists environmental degradation, grease, acids, and ozone weathering, preventing corrosion under insulation (CUI).
Provides critical temperature management and vibration damping in rail cars and cold chain transport systems. Crucially, the material self-extinguishes during fire emergencies, preventing the spread of flame in confined spaces.
Sourcing heavy construction materials internationally requires analyzing the Total Cost of Ownership (TCO) beyond the initial FOB unit price.
Because elastomeric foam is lightweight but voluminous, our logistics team optimizes container layouts. We offer compression packing for sheet rolls and nest pipe sizes to save container space and reduce ocean freight costs.
We supply complete, standardized documentation, including Class 0 / Class 1 fire test certificates, ASTM performance indices, CE marks, and certificates of origin, facilitating smooth customs clearance in the EU, Americas, and APAC.
For high-volume distributors, we offer continuous scheduled shipping programs from our Dacheng facility. This arrangement allows you to maintain optimal inventory levels without tying up excessive local warehouse space.








The industrial thermal insulation market is evolving rapidly, driven by sustainability targets, energy-saving mandates, and smart building integration.
Modern building regulations, such as LEED v4.1, prioritize low VOC emissions. Kingflex is leading this transition by reducing halogen additives in NBR/PVC compounds and using cleaner, water-based acrylic adhesives.
Standard foil facings can tear under high physical stress. Our latest reinforced grids bind high-tensile fiberglass mesh between layers of foil, boosting tear resistance and extending the lifespan of the insulation system.
By pairing closed-cell foam with acoustic-dampening barrier foils, we construct wrap systems that provide thermal insulation and acoustic isolation, dampening HVAC compressor noises at the source.
Here are technical answers to common questions about selecting, specifying, and installing self-adhesive foil and foam insulation wrap.
Explore our complete range of specialized insulation products, including self-adhesive sheets, pipe sections, and rock wool blankets.