Select from our certified industrial rubber foam tubes, sheets, and cryogenic thermal insulation systems.
Under the global push for net-zero construction, procurement models are moving from unit costs to life-cycle performance metrics.
Modern building regulations in the EU and North America demand structural components that significantly lower operating carbon footprints. Our elastomeric solutions provide superior thermal envelope security by preventing thermal bridging in wall assemblies.
Analyzing wholesale quotes now requires calculating performance lifespan. Our NBR/PVC systems possess structural elasticity with >80% compression resilience, maintaining insulation parameters over 15+ years of seasonal cycles.
Unlike open-fibered materials, closed-cell rubber insulation (with over 98% closed cell rate) serves as a dual-action system. It provides thermal barrier protection while acting as a vapor retarder to prevent mold inside structural cavities.
Engineered thermal barriers with precise technical specifications for commercial building insulation and HVAC projects.
Material Structure: Closed-Cell NBR/PVC Blend
Thickness Range: 6mm to 50mm
Density Range: 40 to 55 kg/m³
Operational Temperature: -40℃ to 105℃
Key Advantages: High moisture resistance factor, flame-retardant self-extinguishing chemistry, and robust insulation performance.
Applicable ID: 6mm to 114mm
Thickness Range: 9mm to 40mm
Coating Quality: Standardized structural spray coating prevents degradation
Primary Benefit: Minimizes pipeline condensation and reduces building freeze risks in cold climates.
Designed for complex masonry and steel-framed cavities. Our flexible rubber foam contours around internal service conduits, reducing structural sound transmission and providing reliable acoustics and thermal envelope control.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production departments are located in Dacheng, China—a well-known capital of green building materials. Kingflex is an energy-saving, environmentally friendly enterprise concentrated on research, development, production, and sales.
Established by the Jinwei Group, which holds a heritage of more than 40 years since 1979, Kingflex was founded on the expertise of the first thermal insulation manufacturer north of the Yangtze River. Today, we operate 5 automated assembly lines with an annual capacity of 600,000 cubic meters.
Our organization has designated production partnerships with the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
We maintain a rigorous inspection system to comply with global structural, safety, and environmental standards.
Fully compliant with BS 476, CE, REACH, ROHS, UL94, and ASTM standards.
Every product batch is systematically indexed and tracked for QA validation.
Our department features eight specialized engineers developing optimized thermal formulations.
Exporting to more than 66 countries for industrial and commercial projects.
Providing clear technical consultation, reliable customer service, and manufacturing quality control.
Our employees bring years of experience to Kingflex. Together, our team focuses on delivering reliable service to our clients. Our staff includes 8 professional engineers in the R&D Department, 6 international sales specialists, and 230 factory employees.
We work closely with structural engineers, mechanical contractors, and insulation distributors to supply tailored solutions that meet complex regional building regulations.




From HVAC ductwork to industrial piping networks, our insulation ensures consistent thermodynamic performance.
Technical answers regarding our elastomeric rubber foam insulation capabilities, certifications, and project support.
High-performance elastomeric materials for building envelopes and pipe insulation projects.