Kingflex
Kingflex
Premium industrial elastomer sheets, pipeline insulation tubes, and cryogenic barriers engineered for sound dampening and moisture prevention.
Modern building designs mandate stringent noise insulation standards. Wastewater pathways, high-velocity rainwater mains, and industrial hydronic distribution lines act as structural transmitters of turbulent noise. Acoustic plumbing refers to the design methodology and material application deployed to attenuate fluid-borne turbulence and impact sound transmission within structural cavities.
At Kingflex Insulation Co., Ltd., our NBR/PVC-based elastomeric closed-cell structures are cross-linked to achieve high density and localized elasticity. This chemical design enables structural decoupling, allowing our insulation sleeves to absorb vibration frequencies before they transfer to plasterboard walls or structural studs.
By integrating a low thermal conductivity rating (≤ 0.034 W/m·K at 0°C) and a high water vapor resistance factor (μ ≥ 10,000), Kingflex materials offer thermal and acoustic protection in a single step, preventing condensing-pipe corrosion while isolating structure-borne noise.
Physical characteristics tested in international laboratories validating our thermal-acoustic barriers.
Highly dense polymer matrices display elasticity under dynamic loads, absorbing the physical vibrations generated by pipeline fittings and turbulence.
Meets BS 476 Part 7 Class 1 and UL94 V-0 flame spread limits. Incorporates fire retardants that self-extinguish to limit toxic smoke propagation.
An integrated moisture barrier eliminates the need for separate wraps, protecting steel and copper lines against Corrosion Under Insulation (CUI).
Physical metrics for Kingflex elastomeric sheets and tubular designs.
| Insulation Type | Material Composition | Available Thickness | Density Range | Service Temperature | Key Applications |
|---|---|---|---|---|---|
| Black Rubber Foam Sheet Roll | NBR/PVC Elastomeric Foam | 6mm - 50mm | 40 - 55 kg/m³ | -40℃ to 105℃ | HVAC Ducts, Large Diameter Vessels, Wall Soundproofing |
| Black Rubber Foam Pipe Insulation | Closed-cell Rubber Compound | 9mm - 40mm (ID: 6mm-114mm) | 40 - 55 kg/m³ | -40℃ to 105℃ | Chilled & Hot Water Lines, Air Conditioning Lines, Domestic Mains |
| Flexible Cryogenic Insulation | Synthetic Elastomer Complex | Various Custom Profiles | 50 - 65 kg/m³ | -200℃ to 125℃ | Liquid Nitrogen Pipework, LNG Terminals, Extreme Cold Systems |
Different jurisdictions impose distinct mechanical regulations for noise control and moisture resistance:
Acoustic and thermal systems in public buildings must comply with ASTM E84 (25/50 Flame/Smoke rating). Kingflex designs pass these requirements, offering a thermal and acoustic solution for return air plenums.
Under local building directives, wastewater columns require acoustic lagging to limit sound transmission below 30 dB(A). Elastomeric sheet systems damp the impact of pipe water surges, maintaining quiet spaces in residential buildings.
High relative humidity levels in tropical climates require high water vapor resistance (μ values). Lower quality open-cell foams risk saturation, which leads to mold growth and increased thermal conductivity. Closed-cell elastomers prevent moisture entry without needing external vapor jackets.
Kingflex Insulation Co., Ltd. is positioned in Dacheng, China, a central hub for green building material manufacturing. This location provides access to raw materials, including rubber monomers, flame-retardant compounds, and modern foaming additives.
Backed by the Jinwei Group's 40-year history since its founding in 1979, our production capability includes:
Select from our product lines tailored for acoustic decoupling, standard HVAC insulation, and cryogenic engineering.
High-elasticity tubular lagging for condensation control and thermal containment in residential and commercial plumbing systems.
Modified rubber formulation to resist chemical exposure, protecting pipes in industrial process environments.
Flexible sleeves for piping configurations with multiple bends, reducing installation times.
Closed-cell insulation for plumbing networks, offering thermal insulation and condensation protection.
Low thermal conductivity insulation for domestic plumbing lines, limiting thermal loss.
Engineered for air conditioning line sets to prevent condensation and control energy loss in exposed duct runs.
Integrated multi-layer sheet system designed for sound dampening on wastewater pipes and HVAC ducts.
Engineered for cryogenic applications down to -200°C. Resists extreme cold without fracturing.
Dual-performance foam balancing thermal control and acoustic decoupling in marine gas processing lines.
Protects against thermal shock and mechanical vibration in heavy-duty gas transport systems.
High-density mineral fiber boards for thermal resistance in high-temperature applications up to 650°C.
Flexible mineral wool wraps designed for thermal barrier performance on large-scale industrial pipes.
Every production batch undergoes acoustic testing, fire exposure evaluation, and moisture permeability tracking.
Our materials comply with international mechanical insulation and environmental standards.
Looking ahead, building regulations are focusing on both carbon reduction and acoustic performance. At Kingflex, we are adjusting our research and development to align with these industry objectives:
We are researching the integration of bio-derived oils into our polymer matrices. This approach maintains cell integrity while reducing volatile organic compounds (VOCs) to help projects qualify for LEED v4 credits.
By layering visco-elastic membranes with our NBR closed-cell foams, we are developing composites that damp low-frequency structural noise in concrete multi-story buildings.
We support engineering firms with factory-direct supply models, custom dimensions, and digital packaging lists. This helps reduce installation waste and streamlines project schedules.
Read what our international distributors and engineering partners say about Kingflex products.
Kingflex insulation materials implemented in commercial HVAC ducting, plumbing shafts, and cryogenic pipe systems.
A look inside our factory showing our processing lines and shipping warehouse.
Technical details about our products, installations, and logistic support.
Additional insulation systems, cryogenic barriers, and assembly adhesives for industrial projects.
