Explore our certified elastomeric, fiberglass, and soundproofing insulation matrices designed for commercial engineering challenges.
Modern noise control requirements span far beyond simple barrier deployment. Sound energy propagates as longitudinal mechanical waves. To control them effectively, we utilize porous, high-density structures that convert mechanical kinetic energy into thermal heat energy via friction. Our specialized wholesale cork board sound absorption systems and elastomeric closed-cell rubber matrices represent the pinnacle of this acoustic transformation.
By blending natural, gas-filled cork cells with high-density NBR (Nitrile Butadiene Rubber) polymers, we create complex hybrid paths for sound mitigation. This results in products with high Noise Reduction Coefficients (NRC) and robust Sound Transmission Class (STC) performance, catering to structural engineering, HVAC system dampers, building machinery rooms, and custom commercial studio construction.
Unlike raw open-cell structures which absorb water and degrade over time, our closed-cell rubber systems and chemically stable cork materials deliver dual benefits: premium acoustic damping and a highly efficient barrier against thermal energy and moisture propagation.
How industrial buyers leverage Kingflex structural integrity to bypass supply chain instability and meet strict compliance metrics.
With an annual capacity of over 600,000 cubic meters across 5 automatic assembly lines, Kingflex ensures B2B procurement partners receive reliable shipments without project schedule overruns.
All materials are certified under rigorous standards including BS 476, CE, REACH, ROHS, UL94, and ASTM. This guarantees smooth import pathways into North American, EU, and APAC jurisdictions.
Every single batch of NBR/PVC elastomeric foam and acoustic board is marked for quality inspection, enabling end-to-end trace documentation from raw polymer feedstock to the building site.
Founded under the guidance of Jinwei Group—which holds a rich history stretching back to 1979—Kingflex Insulation Co., Ltd. has established itself as the pioneering authority on thermal and acoustic insulation north of the Yangtze River.
From a regional energy-saving enterprise, we have expanded to become a designated manufacturer for major governmental agencies, including the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our operation is rooted in the philosophy of high conservation and minimal system dissipation. We are not merely suppliers; we provide custom consultation, tailored R&D, site installation guidance, and persistent post-sale service for world-class infrastructure.
Validate standard dimension tables, material density ratings, and fire classifications across our key insulation families.
| Material Family | Thickness Scope | Density Matrix | Service Temp. Limit | Acoustic Damping Coefficient | Primary Industrial Use case |
|---|---|---|---|---|---|
| NBR/PVC Elastomeric Foam | 6mm - 50mm | 40 - 55 kg/m³ | -40℃ to 105℃ | Excellent (NRC up to 0.80) | HVAC, pipelines, wall acoustic linings, cold chains |
| Fiberglass Wool Board | 25mm - 100mm | 24 - 96 kg/m³ | Up to 350℃ | High sound absorption | Structural roof insulation, plant machine rooms |
| Natural Cork Acoustic Hybrid | 10mm - 40mm | 120 - 220 kg/m³ | -60℃ to 120℃ | Structural isolation (STC 45+) | Building basements, floor underlayment, sound studios |
| Rock Wool Blankets | 30mm - 150mm | 60 - 150 kg/m³ | Up to 650℃ | Excellent sound attenuation | High-temp furnaces, boilers, offshore marine walls |
Our dedicated team of 8 professional engineers operates state-of-the-art testing equipment. We monitor foam cell uniformity, compression resilience, thermal conductivity deviations, and flame propagation rates daily to maintain a cell-closure level above 98%.
We consistently test the elasticity limits under cryogenic conditions. This enables us to formulate materials suited for extreme cold-temperature storage systems, liquefied gas lines, and aerospace environmental zones.
We pride ourselves on offering customized insulation profiles and custom densities tailored to architectural designs and acoustic challenges.







From regional commercial buildings to large-scale chemical process plants, Kingflex systems deliver reliable thermal control and noise reduction.
Sound absorption and condensation control for supply, return, and bypass air ducts. Minimizes fan vibration noise transmission through building walls.
Ultra-low temperature insulation prevents heat ingress and ice build-up in pharmaceutical, petrochemical, and gas transport facilities.
High-density acoustic panels and gym shockproof damping rubber damp vibration noise, ensuring compliant workplace environments.




We maintain clear communications with our purchasing managers and distributors. Our international sales department ensures that technical parameters, packaging sizes, batch numbers, and customs documentation are processed efficiently.
Below are verification highlights showing feedback from project sites using our elastomeric foams and acoustic backing boards.





Our pathway toward sustainable manufacturing practices and next-generation hybrid soundproofing materials.
Developing hybrid boards incorporating recycled agricultural waste and organic cork materials, minimizing chemical dependency while increasing structural sound attenuation properties.
Upgrading our 5 automatic assembly lines to recycle all internal cutting scraps back into low-density acoustic underlayments, reducing structural waste to zero.
Enhancing flexible halogen-free elastomer lines to ensure toxicity ratings meet strict indoor environment regulations for tunnels, airports, and healthcare centers.
Get professional, engineering-focused answers regarding design, manufacturing, and installation criteria.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation.
Yes, our rubber foam insulation products are fire retardant, meeting standard safety requirements for global commercial and industrial building projects.
Rubber foam is flexible, closed-cell, and moisture-proof, suitable for HVAC and building moisture-barrier insulation. Rock wool is high-temperature resistant and fireproof, suitable for high-temperature industrial pipelines.
Yes, we support comprehensive B2B OEM / ODM service configurations to meet customized thickness, dimensions, density, and backing adhesive requirements.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other international certifications, ensuring compliance with global regulatory standards.
Yes. Every batch is marked and indexed, ensuring full product traceability from initial chemical processing to final shipment delivery.
We can produce thicknesses ranging from 6mm up to 50mm, depending on project specifications.
When installed and maintained according to specifications, the service life of our products typically ranges between 10 to 15 years.
Select specialized cryogenic panels, elastomeric sheets, and high-density sound reduction materials.