Direct wholesale pricing and customizable configurations from China's leading manufacturing hub.
A global joint manufacturing and trading conglomerate dedicated to sustainable thermal and cold insulation technologies.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products.
Our comprehensive research, development, and state-of-the-art production departments are situated within Dacheng, China—historically recognized as the capital of green-building materials. Concentrating efforts on energy-saving, environmentally responsible technologies, Kingflex operates with a foundational core concept: energy saving and consumption reduction.
We deliver structural and industrial solutions through every project stage—encompassing expert consulting, custom R&D, industrial-scale production, on-site installation guidance, and diligent post-sale engineering services designed to lead the trajectory of the global building materials market.
Kingflex was established by the Jinwei Group, bringing over 40 years of structural manufacturing history. Founded originally in 1979, the group was pioneer-ranked as the first manufacturer of advanced thermal insulation materials north of the Yangtze River, building a multi-decade foundation of engineering expertise.
Modern procurement directors within the HVAC, petrochemical, gas processing, and marine sectors operate under high regulatory and technical pressure. Procuring elastomeric insulation and technical foam requires meeting strict specifications to prevent system failure and thermal loss.
Kingflex addresses these needs by combining automated continuous-curing lines with rigorous, trace-tested QA protocols.
A deep engineering overview of Kingflex closed-cell elastomeric structures, tailored for industrial designers and estimation teams.
We provide thermal, cold, and acoustic management across diverse fields:
1. Commercial HVAC Systems: Reducing thermal exchange in supply air ducting and industrial chilled water networks. Keeps moisture out to avoid structural corrosion.
2. Marine and Offshore Engineering: Anti-corrosive, flame-resistant insulation systems designed for offshore conditions, salty sea spray, and physical vibration.
3. Low-Temperature Logistics & Cryogenics: Highly reliable barrier systems for liquid gas piping, specialized medical refrigeration plants, and dry ice shipping setups.
4. Heavy Chemical Processing: Protecting processing pipes against corrosion under insulation (CUI), chemical spills, and high operational temperatures.
Centralized air conditioning chilled/hot pipes, supply ducts, architectural walls, structural roofs, machine rooms, and concrete basement foundations.
High-pressure steam pipelines, raw chemical storage tanks, product transfer lines, and processing vessel thermal protection.
Liquid natural gas (LNG) carrier systems, ultra-low temperature liquid systems, and processing lines down to liquefied air stages.
Continuous investment in engineering, chemical R&D, and raw material formulation guarantees top-tier product output.
Kingflex maintains 8 dedicated research and development engineers along with a team of 6 international sales consultants.
Our research and development program develops formulations that balance performance and ease of installation. By focusing on raw material quality, vulcanization timing, and foaming controls, our products provide consistent cell wall density and structural stability.
Our laboratory facilities test for parameters such as thermal conductivity, closed-cell ratios, smoke density, fire behavior, and compression recovery. We collaborate with national engineering institutes to update our formulations to match evolving safety and environmental standards.
Our production facilities maintain certification under international verification schemes, providing reliable batch-to-batch consistency.
Passed BS 476, CE, REACH, RoHS, UL94, ASTM, and ISO 9001 standards.
Our sales process prioritizes transparency, trace-testing records, and dedicated client services.
Our solutions are specified globally across residential, commercial, industrial, and processing environments.
Aligning manufacturing capabilities with global environmental requirements, green energy goals, and sustainable building codes.
Developing formulations that achieve zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) metrics. Our engineering team is currently moving production stages away from traditional HCFC-based auxiliary components toward water-blown and CO2 co-blowing platforms.
With tightening indoor air quality regulations across residential complexes, hospitals, and educational facilities, Kingflex prioritizes low-VOC elastomeric foams. Our materials meet Greenguard-level emissions thresholds for critical projects.
Developing reclamation systems for scrap rubber, vulcanized waste, and installation trim. We aim to process production byproducts into acoustic underlays and vibration-isolation pads to support circular resource loops.
Answers to common questions regarding specifications, applications, compliance, and custom ordering.
A1: It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation and sound insulation.
A2: Yes, our rubber foam insulation are fire retardant, which meets the safety standards of building and industrial projects.
A3: Rubber foam is flexible, closed-cell and moisture-proof, suitable for HVAC and building insulation; Rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature pipeline insulation.
A4: Yes, we support OEM service to meet different project needs.
A5: Our products have passed BS 476 , CE, REACH, ROHS, UL94, ASTM and other international certifications, ensuring product quality and compliance with global standards.
A6: Yes, Kingflex products have traceability.
A7: We can produce from 6mm to 50mm thickness.
A8: It will be about 10 to 15 years.
A9: Through continuous processing lines equipped with laser measurement feedback loops and temperature-controlled curing tunnels, we maintain standard cellular size distributions and high closed-cell ratios.
A10: Wholesale pricing is determined by order volume, customized facing laminates (e.g., aluminum foil wraps), customized wall thicknesses, packaging requirements, and shifts in international elastomer raw material prices.
Material: NBR/PVC
Thickness: 6mm-50mm
Density: 40-55kg/m³
Service Temperature Range: -40℃ to 105℃
1. Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
2. Full closed-cell structure, low moisture absorption, stable long-term thermal conductivity.
3. Compression resilience over 80%
4. Flame retardant, self-extinguishing off fire.
5. Low thermal conductivity, high moisture resistance factor.
Material: NBR/PVC
Thickness: 9mm-40mm
ID: 6mm-114mm
Density: 40-55kg/m³
Service Temperature Range: -40℃ to 105℃
1. Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
2. Professional pipe spraying equipment ensures even coating.
3. Compression resilience over 80%
4. Flame retardant, self-extinguishing off fire.
5. Low thermal conductivity, high moisture resistance factor.
6. Greatly reduce pipe freezing and cracking risks.
Direct output tracking images from our five automated manufacturing pipelines.

















Complete your design configuration with specialized facing systems, self-adhesives, and low-temperature elastic systems.
A reference table mapping specific configurations of our rubber and mineral insulation product catalog.
From initial design consultations to site execution, we support global procurement networks.
Each shipment includes test reports documenting physical performance, fire spread behavior, and dimension consistency. Our trace-testing records connect raw materials, manufacturing lines, and final QA verification logs.
We offer options such as self-adhesive backings, pre-cut pipe configurations, and factory-applied protective jacketing (e.g., aluminum foil wraps) to reduce on-site installation labor.