Open-cell elastomeric soundproofing matrix designed for low-frequency absorption and ambient dampening.
Engineered NBR matrix with superior resistance to mechanical wear and localized acoustic transmission.
NBR-PVC polymer blend providing moisture barrier protection alongside broadband acoustic attenuation.
Heavy-density structural panels built to isolate plantroom machinery noise and mechanical vibrations.
Costa Rica, a global emblem of ecological preservation and sustainable construction, presents a unique operating environment for industrial and commercial engineers. Driven by the National Decarbonization Plan (Plan Nacional de Descarbonización) aiming for net-zero emissions by 2050, the country's building regulations place stringent performance requirements on thermal and acoustic insulation materials.
Unlike regions with mild humidity, Costa Rica's tropical climate features relative humidity levels that often exceed 85% in coastal logistics nodes like Limón and Puntarenas, as well as in the Central Valley during the rainy season. This intense ambient moisture severely compromises traditional insulation options such as open-fiber glass wool or rock wool, which can absorb moisture and degrade their thermal conductivity (λ) and acoustic performance over time.
Industrial parks in Coyol, Alajuela, and Cartago host complex medical device assembly lines and advanced electronics manufacturing. These cleanroom environments require high-density, low-VOC acoustic solutions to isolate heavy HVAC air-handling systems without releasing particulates.
Due to the aggressive humidity, materials must feature high resistance to moisture vapor transmission. Flexible elastomeric foam, with its naturally low permeability, prevents condensation on chilled water lines and keeps acoustic panels free from mold and mildew.
Acoustic design in commercial structures (such as eco-tourism hotels in Guanacaste or corporate towers in San José) relies on understanding the differences between sound absorption and sound transmission loss. The choice of insulation structure directly dictates performance:
| Property Parameter | NBR/PVC Elastomeric Open-Cell Foam | Standard Rock Wool (Acoustic Grade) | Closed-Cell Nitrile Rubber Foam |
|---|---|---|---|
| Thermal Conductivity (λ at 0°C) | ≤ 0.038 W/(m·K) | ≤ 0.035 W/(m·K) | ≤ 0.034 W/(m·K) |
| Moisture Resistance (μ value) | ≥ 5,000 | ≤ 1.2 (Requires separate vapor barrier) | ≥ 10,000 |
| Noise Reduction Coefficient (NRC) | 0.70 - 0.85 (Thickness dependent) | 0.80 - 0.95 | 0.25 - 0.35 |
| Particulate Emission | Zero fiber shedding, Cleanroom Grade | High risk of fiber migration | Zero fiber shedding, cleanroom compliant |
| Reaction to Fire | Class 1 / Class 0 (BS 476 Part 6/7) | Class A1 Non-combustible | Class 1 / Class 0 (ASTM E84 25/50 rated) |
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal and acoustic insulation products. Located in Dacheng, China—widely recognized as the capital of green building materials—Kingflex operates as an energy-saving, environmentally conscious enterprise that integrates product research, production, and international sales.
Backed by the Jinwei Group, which boasts over 40 years of manufacturing history since its founding in 1979 as the first thermal insulation manufacturer north of the Yangtze River, Kingflex delivers structural reliability and technical depth to its partners. Our operations focus on energy conservation, providing comprehensive services from early-stage consulting and custom R&D to step-by-step installation guidance and post-sale technical support.
Our dedicated workforce forms the backbone of our operation, with 230 production specialists, 6 international sales consultants, and 8 professional R&D engineers ensuring that every batch meets rigorous project specifications. Kingflex operates 5 large automatic assembly lines with an annual capacity exceeding 600,000 cubic meters. This scale has earned the company designated production status from major ministries of energy, chemical industries, and electric power.
Engineered for high thermal stability at temperatures down to -200°C, preventing thermal shock.
Multiple-barrier vapor lock design for LNG terminals and industrial chemical facilities.
Reduces airflow noise in duct networks and prevents energy loss in commercial complexes.
Slit-and-seal pre-formed tubing for fast on-site installation, reducing labor costs.
For procurement directors managing projects in San José, Cartago, or Limón, supply chain predictability is as critical as material specifications. Sourcing directly from Kingflex's Chinese manufacturing base offers a clear competitive advantage in terms of cost efficiency and capacity reliability.
By bypassing regional middle-market distributors, Costa Rican developers can customize raw material thicknesses, density profiles, and self-adhesive configurations directly with our engineering team. Shipping routes from Chinese maritime hubs (e.g., Tianjin or Shanghai) to Costa Rican ports are highly optimized:
Bypassing distributors yields cost savings of 15% to 30%, even when factoring in international freight, helping projects stay within budget.
Order sheets ranging from 6mm to 50mm in thickness, with custom protective coatings or high-temp aluminum foil backings for challenging outdoor installations.
Every production batch is linked to a raw material batch log, ensuring full product traceability from our factory floor to your job site.
Our commitment to quality is backed by international test certifications. In humid environments, fire protection and smoke toxicity standards are strictly enforced. Kingflex materials undergo regular laboratory testing to maintain their compliance:
Kingflex insulation sheets and tubes hold certifications including BS 476 Parts 6 & 7 (Class 0 and Class 1), CE, REACH, ROHS, UL94, and ASTM. These certifications ensure our products comply with building codes across Europe, the Americas, and local Costa Rican municipal safety offices.



Engineered for large surfaces, HVAC duct wrap, wall insulation, and equipment sound deadening. Its flexible nature makes installation around bends and complex geometries fast and simple.
| Property | Value / Standard Reference |
|---|---|
| Base Polymer | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Available Thickness | 6mm, 9mm, 13mm, 16mm, 19mm, 25mm, 32mm, 40mm, 50mm |
| Density Profile | 40 - 55 kg/m³ |
| Operating Temperature | -40°C to 105°C (-40°F to 221°F) |
| Closed Cell Content | ≥ 98% (Ensures low moisture absorption and stable thermal conductivity) |
| Compression Recovery | ≥ 80% (Maintains structural form under mechanical pressure) |


Designed for pipeline thermal and acoustic insulation. Pre-formed sleeves reduce heat gain on chilled lines and isolate liquid flow noise in commercial spaces.
| Property | Value / Standard Reference |
|---|---|
| Standard Thickness | 9mm, 13mm, 19mm, 25mm, 32mm, 40mm |
| Internal Diameter (ID) Range | 6mm to 114mm (Accommodates standard copper and steel pipes) |
| Vapor Permeability | ≤ 2.0 × 10⁻¹¹ g/(m·s·Pa) |
| Ozone & Weather Resistance | Excellent, resists cracking in high-humidity exterior setups |


At Kingflex, we maintain open communication channels to ensure order accuracy and delivery scheduling. Our sales and engineering teams work directly with buyers to confirm custom design specifications prior to shipment.




Flexible elastomeric tube for VRF air conditioning installations and copper piping lines.
Equipped with a high-tack backing layer to accelerate application on sheet metal ducts.
Acoustic roll formulation designed for high mechanical resilience and durability.
Aluminum facing increases puncture resistance and provides UV protection for exterior setups.
Provides balanced thermal performance and sound dampening for machinery enclosures.
Fiberglass core panel suited for dry-wall cavity acoustic treatments and hot utility lines.
Designed to prevent condensation and freezing on low-temperature industrial lines.
A robust NBR/PVC blend that resists weathering and moisture ingress on piping runs.
Kingflex insulation materials are applied globally across construction, petroleum, chemical processing, national defense, aerospace, and energy sectors. The following imagery details our materials in use on commercial building ducts and industrial piping installations:











Get factory-direct technical quotes, product customization options, and freight details for the Costa Rica market.