Explore our core product lines, ranging from extreme low-temperature cryogenic systems to high-performance building soundproofing. Our items boast exceptional thermal performance, low moisture permeability, and strict compliance with international fire safety codes.
In modern construction and industrial engineering, acoustic and thermal integrity are paramount. Unmitigated pipeline vibration and noise transmission compromise workplace safety, residential comfort, and process control. Our products are engineered to combat structural-borne and airborne acoustic waves utilizing advanced NBR/PVC closed-cell elastomer technology.
In the commercial sector, HVAC and chilled water lines are major sources of continuous, low-frequency hums. Industrial operations require robust barriers against cavitation and high-pressure steam turbulence. In contrast to conventional fiber-based insulators, closed-cell rubber foam functions as both a structural damper and an air-tight barrier, decoupling sound transmission paths while maintaining strict thermodynamic control.
Sound absorption in elastomeric materials depends on cell morphometry and density. Closed-cell sheets suppress condensation and structure-borne vibration, while open-cell matrices provide maximum sound dampening by forcing acoustic energy to dissipate as heat through tortuous air pathways. Kingflex engineers tailored solutions using a premium NBR/PVC blend, targeting both thermal conductivity and acoustic attenuation.
| Property | Kingflex Standard Sheet Value | Kingflex Insulation Pipe Specification | Test Methods & Standard |
|---|---|---|---|
| Base Material Matrix | NBR/PVC Elastomeric Foam | NBR/PVC Closed-Cell Elastomeric | ASTM D1667 / ISO 6944 |
| Thickness Options | 6mm to 50mm | 9mm to 40mm (Inner Diameter: 6mm-114mm) | Standard Metric Calibrations |
| Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ | GB/T 6343 / ASTM D1622 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.034 W/(m·K) at 0°C | ASTM C177 / EN 12667 |
| Water Vapor Permeability (μ) | ≥ 10,000 (Moisture-proof) | High resistance to vapor transmission | EN 12086 / ASTM E96 |
| Service Temperature Limit | -40°C to 105°C | -40°C to 105°C (Cryogenic to 105°C) | ASTM C534 |
| Flame Retardancy | Class 0 / Class 1 / Self-extinguishing | Flame retardant, self-extinguishing | BS 476 Part 7 / UL 94 V-0 / ASTM E84 |
Based in Dacheng, the core of China's green-building material capital, Kingflex Insulation Co., Ltd. leverages regional supply chains, advanced technology, and high production capacities to support global mechanical and engineering projects.
Our direct integration with chemical precursors ensures consistent foam performance. Automated vulcanization and continuous foaming ovens provide uniform cell structures across sheets and tubes. With annual capacities exceeding 600,000 cubic meters, Kingflex handles large-scale commercial and industrial volume requirements on short lead times.
Acoustic and thermal properties perform differently under varying environmental conditions. Kingflex systems are optimized for specific operational roles, protecting piping infrastructure from environmental stress and damage.
Prevents pipe condensation, limits heat transfer, and dampens structural vibrations in HVAC chillers, fan coil units, and plumbing pipelines inside hospitals, hotels, and complexes.
Engineered for liquified natural gas (LNG), liquid nitrogen systems, and process cooling. Prevents pipe cracking, micro-fissures, and heat ingress at temperatures down to -200°C.
Resists oil, gas, acid, and alkali exposure. Limits thermal loss and attenuates acoustic noise on high-velocity fluid pipes, valves, and process distribution columns.
Our dedicated engineering facility tests material chemistry, elastomer cross-linking, and flammability parameters. Constant validation ensures our products perform reliably in demanding structural and industrial applications.
Every batch of Kingflex foam undergoes rigorous quality checks. With a dedicated team of 8 R&D engineers, we customize physical dimensions and densities to meet architectural noise specifications. The production facility maintains complete material traceability, from raw polymers to finished packaging.
To operate across highly regulated markets such as the European Union, the Americas, and Southeast Asia, our elastomeric products undergo third-party certification. We maintain testing protocols covering acoustic reduction, thermal resistance, smoke toxicity, and flame spread.
Kingflex materials are deployed in commercial HVAC setups, low-temperature cryogenic systems, and oil refineries worldwide. High-performance soundproofing sheets and pre-formed tubes support critical noise dampening across diverse climates and conditions.
From raw material storage to continuous foaming lines, our production processes are documented to meet chemical formulation standards. We maintain clean production halls and climate-controlled storage to protect finished products from moisture ingress prior to packaging.








International procurement relies on smooth communication, technical compliance, and logistical transparency. We provide clear scheduling updates, detailed quality test reports, and packing verifications to support global shipping and import requirements.





Find technical answers regarding the performance, compliance, and customization of Kingflex elastomeric insulation products.
Select the appropriate model for your technical requirements. We offer competitive factory-direct pricing, custom slitting, and logistics coordination for global delivery.
















