Explore our certified elastomeric rubber foam sheets, rolls, and pipes engineered for critical commercial thermal control.
Strategic analysis of green building mandates, thermal optimization, and structural safety advancements.
Global environmental mandates now demand strict reduction of operational thermal losses. Elastomeric duct lagging plays a vital role in achieving net-zero building designations under LEED v4, BREEAM, and DGNB structures, by reducing HVAC energy consumption by up to 25%.
Modern architectural design prioritizes acoustic comfort. Advanced open-cell and dual-density elastomeric duct lagging provides structural vibration dampening alongside high-performance sound absorption, eliminating low-frequency airborne noise within ventilation ducts.
Compliance with fire safety regulations like British Standard (BS 476 Parts 6 & 7 Class 0) and American Standards (UL 94, ASTM E84) is a non-negotiable requirement for commercial buildings. Our materials are designed to resist flame spread and produce minimal smoke in fire situations.
The demand for energy insulation has shifted from basic thermal barriers to intelligent systems. Kingflex Insulation Co., Ltd. operates in Dacheng, China—the capital of green-building materials. As a modern manufacturer, Kingflex integrates state-of-the-art automation with strict quality control.
Equipped with 5 fully automated assembly lines, we deliver a production capacity exceeding 600,000 cubic meters annually. This high-scale capacity ensures project deadlines are met for commercial towers, heavy chemical plants, and municipal systems worldwide.
Direct sourcing of raw polymers keeps price points stable and competitive.
OEM capabilities allow customized density adjustments and lamination finishes.
Years of Industrial Heritage
M³ Annual Production Capacity
Exporting Destinations Globally
Closed-Cell Insulation Ratio
Choosing the correct insulation material requires analyzing key physical parameters. Kingflex elastomeric NBR/PVC foam delivers thermal conductivity ($\le 0.034$ W/m·K at 0°C) and excellent water vapor permeation resistance ($\mu \ge 10,000$).
Our dedicated laboratory tests thermal insulation formulas to meet international standards.
Our manufacturing and quality standards are certified by global testing organizations.
Established in 1979 by Jinwei Group, Kingflex was the first thermal insulation manufacturer north of the Yangtze River. Over the last four decades, this heritage has driven our growth into a leading industry brand.
Our team includes 8 professional R&D engineers, 6 international technical sales representatives, and 230 trained production operators. Working together, we ensure that every square meter of elastomer produced meets our strict quality standards.
Real-time updates, custom project approvals, and order tracking directly with international buyers.
Standard and customizable dimensions for duct lagging sheets and rubber foam pipe systems.
| Material | Premium NBR / PVC Elastomeric Base |
| Thickness Range | 6mm to 50mm |
| Density | 40 - 55 kg/m³ |
| Temperature Limits | -40℃ to 105℃ |
| Thermal Conductivity | ≤ 0.034 W/(m·K) at 0°C |
| Fire Performance | BS 476 Class 0, UL94 V-0 Rated |
| Material | Nitrile-butadiene Rubber (NBR) Blend |
| Wall Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Elasticity Index | Compression resilience > 80% |
| Structure Type | > 98% fully closed micro-cells |
| Anti-freeze Rating | Exceptional performance in cold weather |
Providing custom thermal and acoustic solutions for international HVAC projects and process pipelines.
Thermal insulation for metal air supply and return ducts. Prevents energy loss and condensation in high-humidity commercial buildings.
Designed for low-temperature applications. Offers structural protection against extreme cold and thermal contraction.
Suitable for theaters, recording studios, hospitals, and hotels. Reduces low-frequency fan noise and operational vibration.
A look at our plant operations, storage systems, and automated packaging equipment.
Technical guidance and answers for duct lagging design, logistics, and installation.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation in commercial buildings.
Yes, our rubber foam insulation products are fire retardant and meet safety standards for building construction and industrial projects, including BS 476 Class 0 and UL94 testing.
Rubber foam is flexible, closed-cell, and moisture-proof, making it suitable for HVAC systems and anti-condensation protection. Rock wool is high-temperature resistant and fireproof, suited for industrial high-temperature steam lines.
Yes, we offer complete OEM support, including custom sizing, thicknesses, densities, and lamination options like aluminum foil facings for different project specifications.
Our materials have passed BS 476, CE, REACH, ROHS, UL94, and ASTM certifications, ensuring compliance with global environmental and safety standards.
Yes. Every batch of our insulation material goes through quality tracking, with labels and identifiers to trace the raw materials and manufacturing history.
We can manufacture elastomeric foam rolls and sheets in thicknesses ranging from 6mm up to 50mm to meet different thermal load requirements.
Under normal operating conditions and with proper installation, our rubber insulation materials have an expected service life of 10 to 15 years.
Explore our specialized range of thermal tubing, low-temperature systems, and heavy-duty industrial pipe wraps.
Kingflex