Qingdao Roadzeal Textile Co., Ltd is one of most professional and reliable pir foam top manufacturer and supplier in China。
In the modern construction and cold-chain logistics industries, energy efficiency and fire resilience are no longer optional—they are regulatory mandates. PIR foam (Polyisocyanurate) represents the advanced evolution of rigid cellular plastics. While it shares a lineage with polyurethane (PUR), PIR is engineered with a higher ratio of isocyanate, resulting in a significantly more stable chemical structure. This “isocyanurate” bond provides PIR foam with superior thermal resistance (R-value) and inherent fire-retardant properties that far surpass traditional insulation materials.
Our collection of PIR technical foams is designed for architects, HVAC engineers, and industrial manufacturers who require “zero-compromise” insulation. Whether you are constructing a high-performance cold storage facility, insulating aerospace components, or developing energy-efficient building envelopes, our PIR foam solutions provide the highest thermal return per inch of thickness available on the market today.
PIR foam is a “closed-cell” thermoset plastic. This means the cells are tightly locked and filled with high-performance blowing agents, resulting in:
Ultra-Low Thermal Conductivity ($\lambda$-value): With a typical lambda value as low as 0.022 W/m·K, PIR foam is one of the most efficient insulation materials in existence. This allows for thinner walls and more usable internal space without sacrificing thermal performance.
Inherent Carbonization (Fire Shielding): When exposed to fire, PIR foam does not melt or drip. Instead, it forms a protective “char” layer on the surface, which acts as a heat shield to protect the foam core and the structural elements behind it.
High Compressive Strength: Despite its lightweight nature, our PIR foam is engineered to withstand significant mechanical loads, making it ideal for floor insulation, flat roofing systems, and load-bearing sandwich panels.
Why do global construction firms and cold-chain logistics providers specify our PIR technical foams?
Space-Saving Efficiency: Because PIR has a higher R-value than mineral wool or EPS, you can achieve the same insulation rating with roughly half the thickness. This is critical in transport vehicles and urban construction where every centimeter of space has a high monetary value.
Moisture and Vapor Resistance: The closed-cell structure of PIR foam is naturally resistant to water absorption and vapor transmission. This prevents the “wicking” effect that destroys the R-value of fibrous insulators over time.
Dimensional Stability: Our PIR foams are tested for stability across extreme temperature fluctuations (from -150°C to +120°C), ensuring that panels do not warp, shrink, or create “thermal bridges” over the lifespan of the installation.
Chemical Compatibility: PIR is chemically inert and resistant to most common construction solvents, glues, and bitumen, allowing for versatile installation with various adhesives and facing materials.
Our PIR foam portfolio serves as a critical infrastructure component in several high-performance sectors:
PIR foam is the “core” of high-efficiency sandwich panels. It maintains the strict temperature controls required for food safety while significantly reducing the energy costs associated with industrial refrigeration.
Due to its ability to perform at ultra-low temperatures, specialized PIR foam is used to insulate Liquefied Natural Gas (LNG) pipelines and storage tanks, preventing boil-off and ensuring safe transport.
Used in “SIPs” (Structural Insulated Panels) and rigid roof boards, PIR foam helps buildings achieve Passive House standards and high LEED certifications by virtually eliminating heat loss through the walls and roof.
We provide PIR foam panels specifically for the fabrication of pre-insulated air ducts. These ducts are lighter than galvanized steel, easier to install, and provide superior acoustic and thermal dampening.
We provide end-to-end technical support to ensure our PIR foam meets your project’s specific mechanical needs:
Custom Facings: We can supply PIR boards with aluminum foil, glass tissue, or craft paper facings to enhance vapor barrier performance or bonding strength.
Precision CNC Cutting: For custom-shaped pipe sections, valve covers, and specialized industrial components.
Bulk Slabstock or Laminated Panels: Available in various densities ($30\text{–}60\text{ kg/m}^3$) to suit both lightweight insulation and heavy-duty structural applications.
While they look similar, PIR (Polyisocyanurate) has a much higher thermal stability and fire resistance than PUR (Polyurethane). PIR produces less smoke and does not melt when exposed to flame, making it the preferred choice for modern building codes and high-risk industrial environments.
PIR foam typically has an R-value of approximately R-6 to R-7 per inch, whereas fiberglass usually offers R-3 to R-4 per inch. This means you can use nearly half the thickness of PIR to achieve the same insulation performance as fiberglass.
Yes, in two major ways. First, our PIR foams are manufactured using zero-ODP (Ozone Depletion Potential) and low-GWP (Global Warming Potential) blowing agents. Second, the massive energy savings achieved over the 30- to 50-year lifespan of a PIR-insulated building far outweigh the energy used to produce the foam.
Because PIR is a closed-cell foam, it has excellent moisture resistance. However, for constant immersion or “wet” underground use, we recommend using PIR boards with a specialized vapor-proof aluminum foil facing to ensure 100% moisture exclusion over decades.
Extremely. PIR foam boards are lightweight and can be easily cut with standard tools. They are compatible with most mechanical fasteners and many solvent-free adhesives, making them one of the fastest insulation materials to install on large-scale projects.
Fill out the form below, and we will be in touch shortly.
