Kingflex
Kingflex
Explore our high-performance thermal insulation products engineered for HVAC, cryogenic systems, and acoustic environments.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research development and production department is situated in the well-known capital of green building materials in Dacheng, China. As an energy-saving, environmentally friendly enterprise, we concentrate on the research, development, production, and sale of advanced insulation materials.
In our daily operations, Kingflex takes energy saving and consumption reduction as our core concept. We provide integrated solutions regarding insulation by means of expert consultation, custom R&D production, professional installation guidance, and dedicated post-sale service to lead the development of the global building materials industry.
Backed by the Jinwei Group, which boasts a rich history of more than 40 years, Kingflex builds on legacy. Established in 1979, the group stood as the first manufacturer of thermal insulation materials north of the Yangtze River.
Proper installation determines the thermal performance, lifetime, and safety of your piping insulation system. Learn how to achieve a professional installation.
Clean the metal pipe surfaces thoroughly to remove dirt, grease, and moisture. Measure the outer diameter of the pipe and matching pipe insulation inner diameter (ID: 6mm-114mm).
For existing piping systems, slit the foam tube longitudinally. Wrap the foam tube around the pipe ensuring a loose yet snug fit without stretching the elastomeric material.
Apply dedicated Kingflex adhesive on both cut edges. Let it dry until tacky, then press the edges firmly together. Pay extra attention to seams, tee joints, and elbow bends.
Wrap joints with Kingflex vapor barrier tape to prevent moisture intrusion. Ensure all thermal joints are tightly sealed. Unsealed seams lead to local condensation and corrosion.
Compressing elastomeric foam decreases its air-cell thickness, raising its thermal conductivity. Maintain natural relaxation of the foam during layout.
A continuous vapor barrier is vital for cryogenic and chilled water pipes. Any break in the seal allows humid air to reach the cold pipe, causing icing.
For outdoor lines, protect the insulation from UV degradation by coating with protective paint or overlaying with an aluminum-foil laminated sheet.
Verified technical parameters for our NBR/PVC elastomeric rubber foam insulation sheets and tubes.
| Material Category | Dimensions / Thickness | Density Range | Service Temp. Range | Key Performance Values |
|---|---|---|---|---|
| Black Rubber Foam Sheet Roll | Thickness: 6mm - 50mm | 40 - 55 kg/m³ | -40℃ to 105℃ | 98% Closed-cell structure, low water absorption, stable thermal conductivity. |
| Black Rubber Foam Insulation Pipe | Thickness: 9mm - 40mm ID: 6mm - 114mm |
40 - 55 kg/m³ | -40℃ to 105℃ | High compression resilience (>80%), flame retardant, anti-condensation. |
| Alu-Foil Laminated Rubber Sheet | Thickness: 6mm - 30mm | 45 - 55 kg/m³ | -40℃ to 105℃ | Reinforced physical protection, absolute vapor barrier, aesthetic look. |
Why global HVAC and industrial construction projects choose Kingflex as their key insulation partner.
Kingflex runs 5 large automatic assembly lines, generating an annual production capacity exceeding 600,000 cubic meters. This immense capacity ensures that we can scale up production for large infrastructure projects without compromising on deadlines.
As a designated supplier designated by the Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry, our products consistently deliver standard-compliant quality across bulk orders.
Based in Dacheng, China—the epicenter of green insulation technology—we leverage local raw material supply chains, reducing transport cost and passing these savings to our global partners in our wholesale price list.
Excellence in manufacturing is backed by engineering expertise, rigorous research, and international quality certificates.
Our employees are amazing in their own right, but together they are what makes Kingflex a reliable partner. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service for our clients.
Kingflex currently employs 8 professional engineers in our R&D Department, 6 professional international sales executives, and 230 skilled workers in our production departments.
Our thermal insulation products are certified by key global standard associations to verify their performance under extreme conditions.
Our materials conform to BS 476, CE, REACH, RoHS, UL94, and ASTM requirements, ensuring complete traceability for global safety audits.
From standard commercial buildings to demanding industrial processing environments, Kingflex supplies tailor-made solutions.
Ensures energy efficiency in HVAC ducts, fan coils, cold water pipelines, and municipal water systems. The high condensation resistance index makes it perfect for humid climates.
Provides robust thermal insulation for complex chemical plant pipeworks, steam valves, and process tanks operating at high thermal loads up to 105°C.
Specially formulated diolefin cryogenic insulation sheet rolls protect sub-zero liquid gas transport systems, minimizing heat gain and condensation.
Our products have been exported to more than sixty-six countries in the past 16 years. View our real project applications and customer feedback screenshots.
Take a closer look at the raw physical profile of our products, custom design metrics, and production processes.
Material: NBR/PVC
Thickness: 6mm-50mm
Density: 40-55kg/m³
Service Temperature Range: -40℃ to 105℃
Advantage: Foams evenly and fully, closed-cell rate over 98%, excellent thermal insulation. Full closed-cell structure guarantees low moisture absorption and stable long-term thermal conductivity. Compression resilience over 80%. Flame retardant, self-extinguishing off fire. Low thermal conductivity and high moisture resistance factor.
Material: NBR/PVC
Thickness: 9mm-40mm
ID: 6mm-114mm
Density: 40-55kg/m³
Service Temperature Range: -40℃ to 105℃
Advantage: Professional pipe spraying equipment ensures even coating. Foams evenly and fully, closed-cell rate over 98%. Compression resilience over 80%. Flame retardant, self-extinguishing off fire. Low thermal conductivity and high moisture resistance factor, greatly reducing pipe freezing and cracking risks.
Find direct, professional answers regarding installation, material comparison, and custom orders.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation in residential and commercial facilities.
Yes, our rubber foam insulation products are flame retardant. They conform to various international safety standards (e.g. BS 476, UL94 Class V-0, ASTM), meeting building safety standards for public and industrial projects.
Rubber foam is flexible, closed-cell, and moisture-proof, suitable for HVAC and cryogenic systems to prevent condensation. Rock wool is high-temperature resistant and fireproof, widely applied to high-temperature industrial pipelines.
Yes, we support OEM/ODM services. We can customize density, wall thickness, inside diameters, and laminated surfaces (like aluminum foil) to fit custom engineering layouts.
Our products have successfully passed BS 476, CE, REACH, RoHS, UL94, ASTM and other international quality certifications. This guarantees global compliance and compatibility with commercial building codes.
Yes, Kingflex maintains a strict tracking system. From raw NBR/PVC batch compounding to continuous extrusion and packing, each batch is coded and traceable.
We can manufacture thicknesses ranging from 6mm to 50mm, covering most HVAC, industrial acoustic, and cooling systems specifications.
When installed correctly in standard indoor or protected outdoor configurations, our rubber foam insulation holds an average service life of 10 to 15 years.
Detailed snapshots of our primary line of products, including rock wool and acoustic sheets.
Compare and secure factory pricing across our entire line of low-temperature and synthetic rubber structures.
Speak with our engineering support team today to acquire customized layouts, detailed density parameters, and the latest dynamic wholesale price lists for your projects.
