Explore our premium grade fiberglass and elastomeric rubber insulation materials built to satisfy stringent SANS 10400-XA thermal requirements.
Highly effective thermal performance tailored for South Africa's high-altitude and coastal roofs.
Rigid, high-density acoustic board solutions optimized for Cape Town and Johannesburg commercial infrastructure.
Closed-cell HVAC piping prevention system against condensation in high-humidity coastal climates.
Premium 6mm thickness elastomer designed specifically for duct lining and structure-borne sound dampening.
In South Africa, energy management has shifted from an operational preference to a strict regulatory mandate. The enforcement of SANS 10400-XA (Energy Usage in Buildings) requires structural thermal insulation values that directly demand high-performance materials like glass wool and elastomeric rubber foam. Local project managers in industrial hubs like Johannesburg, Cape Town, and Durban face unique challenges: high thermal fluctuation in inland drylands (Gauteng Highveld) and severe humidity-induced condensation issues along coastal regions (KwaZulu-Natal).
Compounded by national electrical grid constraints and rising municipal electricity rates, commercial and industrial enterprises are forced to optimize HVAC system efficiency. Our glass wool and rubber foam products offer an outstanding thermal conductivity rating ($\lambda \le 0.034\text{ W/m·K}$), minimizing thermal leakage, ensuring process precision in petrochemical plants (such as Sasolburg and Secunda), and dramatically decreasing HVAC load.
Aligning South African infrastructure with international green building standards and net-zero technology advancements.
Global demand is rapidly leaning towards Green Star SA and LEED certified products. Our glass wool insulation uses up to 80% recycled glass content, reducing embodied energy and contributing directly to local green rating credits.
Fire regulations globally are tightening. BS 476 Part 6 & 7 and UL94 testing compliance guarantees that our NBR/PVC elastomer sheets and glass wool systems are self-extinguishing, producing minimal smoke density.
Mitigating CUI is critical in industrial process piping. Our closed-cell rubber insulation prevents moisture ingress completely, preventing structural rust on copper and carbon steel pipelines.
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 sales of high-performance insulation systems.
Operating under energy saving and consumption reduction as our core concept, Kingflex provides systemic solutions through specialized consulting, high-level production lines, onsite installation guidance, and dependable after-sales services, leading the trajectory of the global industrial insulation supply chain.
Standard performance values of Glass Wool vs Elastomeric Rubber Foam for engineers and specifiers in South Africa.
| Material Property | Kingflex Glass Wool Insulation | Kingflex Elastomeric Rubber Foam | Relevant Standards |
|---|---|---|---|
| Thermal Conductivity ($\lambda$) | 0.032 - 0.040 W/m·K (at 24°C) | 0.033 - 0.036 W/m·K (at 0°C) | ASTM C518 / ISO 8301 |
| Service Temperature Limit | Up to 400°C (Unfaced) | -40°C to +105°C | ASTM C411 / EN 14706 |
| Fire Classification | Class A1 Non-Combustible | Class 0 / Class 1 (BS 476) | BS 476 Part 6 & 7 / UL 94 |
| Moisture Resistance ($\mu$) | Water Repellent treatment optional | Closed-Cell $\ge 10,000$ (Vapor Barrier) | BS EN 12086 |
| Density | 24 - 96 kg/m³ | 40 - 55 kg/m³ | ASTM D1622 |
| Primary Applications | Large ducts, commercial roofs, high-temp pipes | HVAC chilled water pipes, refrigeration, sound isolation | SANS 10400-XA Compliant |
Kingflex currently operates 5 large automatic assembly lines, generating an annual capacity exceeding 600,000 cubic meters. This scale allows us to serve massive infrastructural builds smoothly and remain a designated reliable supplier globally.
Our R&D team features 8 senior professional engineers, 6 international sales specialists, and 230 skilled production professionals. We guarantee full traceability from material formulation to field delivery.




Our products undergo testing under strict conditions to meet BS 476, CE, REACH, ROHS, UL94, and ASTM norms. Whether specified for Johannesburg hospital HVAC ducts or Durban harbor industrial cooling loops, our quality remains consistent and traceable.




Proven systems engineering configurations for HVAC, heavy industry, mining, and architectural acoustic mitigation.
Coastal Durban features humid conditions that quickly cause sweating on chilled water lines. Without proper insulation, moisture condensation runs down piping, destroying gypsum ceiling boards and promoting mold growth.
Solution: Kingflex Closed-Cell Elastomeric Pipe Insulation (19mm - 25mm thickness) prevents moisture passage, eliminating moisture ingress completely and maintaining thermodynamic efficiency under heavy ambient humidity load.
Buildings in Gauteng face drastic summer-to-winter temperature variances. Standard concrete decks or metal roof claddings offer negligible insulation properties, making heating and cooling systems expensive to run.
Solution: Glass Wool Insulation Blankets (with reinforced foil facing) laid directly under roof cladding. The Class A1 rating ensures compliance with fire safety protocols, while satisfying municipal thermal resistance (R-value) targets.





Our premium grade elastomeric sheet rolls are engineered to meet demanding structural specifications across HVAC, manufacturing, and shipping applications.
| Material Type | Premium NBR/PVC blend |
| Standard Thickness | 6mm to 50mm options |
| Average Density | 40 - 55 kg/m³ |
| Temperature Spectrum | -40°C to +105°C range |








Perfectly sized piping insulation sleeves for cooling loops, hot water flowlines, and industrial process pipelines.
| Material base | NBR/PVC elastomer base |
| Wall Thickness | 9mm to 40mm options |
| Inside Diameter (ID) | 6mm to 114mm sizes |
| Thermal Stability Range | -40°C to +105°C |
Witness the real-world deployment of Kingflex products across massive commercial complexes, industrial process facilities, and marine projects.












Technical guidance regarding safety compliance, heat resistance, moisture mitigation, and project spec criteria.
Select specialized insulation products for heavy manufacturing, HVAC networks, and structural acoustic needs.
Industrial grade fire-resistant nitrile sleeve designed for high-density electrical conduit runs and plant piping.
Standard closed-cell pipeline insulation sleeves providing thermal stability and prevents moisture intrusion.
Specialty low-temperature synthetic elastomer sheet formulated for cold storage and cryogenic systems.
Heavy duty vibration dampening panel designed for gym flooring, mechanical plant mounts, and high impact noise reduction.
Extreme low-temp elastomer system formulated to remain flexible under cryogenic operating conditions.
Engineered rubber pipeline lagging featuring exceptionally low heat conductivity values for process pipes.
High structural integrity pipe insulation sleeves designed for continuous HVAC system duty cycles.
Aluminium foil reinforced elastomeric sheet providing protection against physical damage and vapor ingress.