Kingflex
Kingflex
Direct factory wholesale of elastomeric rubber foam sheets, rolls, and tube systems engineered for demanding temperature-controlled pipelines.
Understanding the physics behind low thermal conductivity, high vapor resistance, and long-term HVAC performance.
By leveraging an even, micro-cellular closed-cell structure (>98% closed cells), our elastomeric foam limits molecular heat transfer. At 0°C, the thermal conductivity remains exceptionally stable, drastically lowering energy loss over 15+ years of operational life.
The combination of high-density NBR/PVC rubber foam with reinforced aluminum foil facing creates a dual-layer defense against moisture infiltration. This prevents condensation, which causes mold and structural decay in structural metal ductwork.
Equipped with a fiber-reinforced pressure-sensitive adhesive backing, our self-adhesive duct wrap ensures strong surface bonding. It resists delamination under severe vibration, thermal contraction, or high humidity.
The engineering design of Kingflex self-adhesive foil and foam duct wrap adheres to rigorous international testing frameworks (ASTM, BS, GB). Below are the standard metrics verified in our ISO-accredited R&D facilities:
| Performance Indicator | Standard Testing Protocol | Technical Value |
|---|---|---|
| Core Material Structure | N/A | NBR/PVC Elastomeric Foam (Closed-Cell Rate ≥ 98%) |
| Thermal Conductivity (at 0°C) | ASTM C518 / ISO 8301 | ≤ 0.034 W/(m·K) |
| Water Vapor Permeability Factor (μ) | BS EN 12086 / ASTM E96 | ≥ 10,000 (Built-in Vapor Barrier) |
| Fire & Flammability Classification | BS 476 Part 7 Class 1 / UL94 V-0 | Flame Retardant, Self-extinguishing off fire |
| Service Temperature Threshold | DIN EN 14706 | -40°C to 105°C (-40°F to 221°F) |
| Density Range | ASTM D1622 | 40 – 55 kg/m³ |
| Compression Resilience Rate | ASTM D1667 | ≥ 80% recovery under test loading |
| Adhesive Peel Adhesion (Stainless Steel) | FTM 1 (FINAT Test Method) | ≥ 15 N/25mm (High tack acrylic adhesive) |
Tailored performance engineering for diverse climates and specialized industrial installations.
Optimized for major commercial structures like airports, medical complexes, and luxury hotels. It serves as both acoustic attenuation and thermal insulation, dampening air-handling unit vibrations and preventing condensation along the cold air pathway.
For chemical refineries, LNG terminals, and cold supply chain warehouses. Special low-density elastomers prevent heat gain in extremely cold pipelines, maintaining process system equilibrium with low thermal bridges.
Offshore oil platforms and vessels face saline air corrosion. Our reinforced aluminum foil wrap acts as a physical barrier against saltwater ingress, while the self-adhesive design prevents under-insulation corrosion (CUI).
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales.
In operation, Kingflex takes energy saving and consumption reduction as its core concept. We provide solutions regarding insulation by means of consultation, research and development, production, installation guidance, and post-sale service to lead the development of the global building materials industry.
Our History: Kingflex was established by the Jinwei Group, which has more than 40 years of history. Kingway Group was established in 1979 and was the first manufacturer of thermal insulation materials north of the Yangtze River. This rich heritage allows us to blend time-tested manufacturing reliability with cutting-edge technology.
Our employees are amazing in their own right, but together they make Kingflex a rewarding place to work. The Kingflex team is a close-knit, talented group with a shared vision of delivering consistent, first-class service to our clients worldwide.
We employ eight professional engineers in our R&D Department who are continuously optimizing polymer formulations, adhesive polymers, and anti-tearing aluminum foil backings. Additionally, our 6 professional international sales specialists and 230 production workers operate in perfect harmony to maintain our high quality standards and on-time shipment schedules.
How our strategic location in Dacheng, China, delivers global logistics advantages and cost-efficiency.
Located in the Dacheng Green Building Materials Cluster, Kingflex benefits from complete upstream supply access for NBR polymers, vulcanization agents, and foil backings. This geographical advantage keeps raw material lead times short and pricing stable, shielding clients from international supply market volatility.
Integrated Assembly Line Design: We operate 5 fully automated thermal processing lines. Our computerized system controls extrusion speed, chemical expansion rates, and adhesive application, ensuring uniform cell density and thickness across every production run.
Logistics Infrastructure: Direct links to Tianjin Port and major logistics corridors allow us to offer secure bulk cargo container loading, efficient custom declarations, and flexible ocean freight options, reducing delivery times for mega-projects.
All Kingflex products undergo third-party certification testing to guarantee performance under global building codes.
Our insulation materials comply with BS 476, CE, REACH, RoHS, UL94, and ASTM testing criteria, ensuring peace of mind for engineering procurement managers.
Comprehensive specifications for sheets, rolls, and pre-formed pipe insulation systems.
Our standard sheet roll parameters provide maximum coverage and flexibility for wide-profile air ducts.
Primary Applications: HVAC air ducts, building wall/roof insulation, mechanical equipment sound dampening, and solar piping thermal wraps.
Pre-formed pipe tubes simplify installation on standard copper and steel pipes.
Primary Applications: Chilled water pipes, central air conditioning condensate pipelines, process steam piping, and plumbing anti-freeze wraps.
A look at our advanced production lines and global distribution facilities.
Verified communication from engineering directors and procurement managers worldwide.
Get answers to common technical, installation, and supply questions about Kingflex solutions.
Explore our range of cryogenic and corrosion-resistant insulation systems designed for harsh industrial applications.
Explore our pre-formed pipes, cryogenic insulation, and high-temperature rock wool products.
We provide full-service technical support, from initial calculations to on-site installation guidance.
At present, Kingflex has 5 large automatic assembly lines, with an annual production capacity of more than 600,000 cubic meters, and has become a designated production enterprise designated by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Read More →Supply customers all over the world with a full set of energy-saving insulation system solutions. Supply integrated solutions for thermal insulation, cold insulation, and noise reduction for buildings and industries.
Read More →Get bulk pricing and customized quotes for self-adhesive foil and foam duct wrap orders. Our engineering team responds to inquiries within 12 hours.
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