China Structural Foam Sheets Suppliers & Quotes

Next-Generation Elastomeric & Structural Closed-Cell Insulation Systems for Industrial, HVAC, and Cryogenic Applications

Featured Closed-Cell Insulation Systems

Engineered rubber-foam sheets and specialized tube geometries designed to maximize thermal resistance and minimize moisture permeation.

Elastomeric rubber foam insulation system

Elastomeric Rubber Foam System (Ultra Low Temperature)

View Pricelist & Quotes
Flexible rubber foam soundproof insulation

Flexible Soundproof Rubber Foam Insulation Materials

Wholesale Details
Rubber elastomeric foam insulation tube

Rubber Elastomeric Foam Insulation Tubes & Jackets

Factory Direct Quotes
NBR PVC rubber foam closed cell insulation

NBR PVC Closed Cell Rubber Foam Insulation Materials

Inquire Online
Closed Cell Rubber Foam Insulation Tube

Closed Cell Rubber Foam Insulation Tube Solutions

Manufacturing Catalog
Kingflex rubber foam product

Kingflex Elastomeric Rubber Foam Product Series

Supply Direct
Kingflex foam rubber pipe insulation

Kingflex Foam Rubber Pipe Insulation Systems

Get Free Quote
Kingflex Self Adhesive Rubber Foam Sheet

Kingflex Self-Adhesive Rubber Foam Insulating Sheets

Wholesale Supplier

Structural Foam Sheets: Technical Specifications & Structural Advantages

An in-depth look into the mechanical integrity, thermodynamics, and polymer composition of our advanced insulation substrates.

1 Closed-Cell Morphological Structure

Our high-density structural foam and elastomeric rubber-plastic sheets are designed with a closed-cell ratio exceeding 98%. This tightly packed molecular array prevents interstitial condensation, minimizes vapor movement, and ensures long-term resistance to water absorption.

2 Vapor Permeability & Moisture Control

Featuring a high moisture resistance factor (μ ≥ 10,000), these sheets function as an integrated water-vapor barrier. By preventing condensation on cold pipes and air conditioning structures, they effectively block rust development and mold growth.

3 Optimized Thermal Conductivity

With a low thermal conductivity rating (λ ≤ 0.034 W/m·K at 0°C), our products minimize thermal bridging and energy loss. They are engineered to maintain stable thermodynamic insulation properties across a wide temperature range, from -40°C up to +105°C.

Performance Parameter Elastomeric NBR/PVC Rubber Foam Sheets Industrial High-Density Structural Foam Sheets Test Standard Reference
Service Temp. Range -40℃ to 105℃ -196℃ to 120℃ (Specialized Cryogenic) ASTM C534 / C177
Thermal Conductivity ≤ 0.034 W/(m·K) at 0℃ ≤ 0.032 W/(m·K) at -160℃ (Cryogenic Grade) ASTM C518 / ISO 8301
Moisture Resistance (μ) ≥ 10,000 Highly Closed-Cell (Impervious) BS EN 12086
Fire Performance Class 0 / Class 1 Flame Retardant, Self-Extinguishing BS 476 Part 7 / UL94 V-0
Apparent Density 40 - 55 kg/m³ 60 - 120 kg/m³ (Custom Structural Grades) ASTM D1622

China Supply Chain Integration & Production Scale

Operating out of Dacheng, China—the global hub of modern energy-saving construction materials—we combine high production volume with strict quality control.

Kingflex Manufacturing Facility

Our Production Facilities

Kingflex operates 5 large-scale automated assembly lines. Our annual output capacity exceeds 600,000 cubic meters of high-density elastomeric and structural insulation products, allowing us to supply large infrastructure and industrial developments worldwide.

Research and Development Testing

Research & Engineering

Backed by decades of experience, our R&D department features 8 professional engineers dedicated to improving raw material polymer formulations, fire resistance, and structural longevity. We focus on developing materials that perform well under high wind loads and harsh industrial environments.

Certified Global Standards

Compliance & Certifications

Our materials comply with major global test protocols, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This compliance helps design firms, procurement managers, and mechanical engineers simplify local approvals and project validation.

40+
Years of Industry Heritage (Since 1979)
600K+ m³
Annual Manufacturing Capacity
66+
Export Destinations Globally
98%+
Closed-Cell Formation Rate

Advanced Industrial Applications & Localization

Designed for demanding conditions, our structural foam sheets and elastomeric insulation systems serve a variety of commercial and industrial sectors.

HVAC & District Cooling Systems

Widely used in commercial real estate, data centers, and hospital duct networks to prevent condensation, reduce thermal loss, and isolate vibration. The high-damping characteristics of our NBR/PVC matrix help lower mechanical noise in building plenums.

Cryogenic & LNG Infrastructure

Engineered for ultra-low temperature applications. Our multi-layer cryogenic configurations remain flexible at low temperatures, minimizing thermal cracking on storage vessels, vaporizers, and distribution lines for LNG and liquid nitrogen.

Heavy Petrochemical & Process Piping

Protects industrial piping from corrosive environments. By preventing moisture migration, our insulation helps mitigate corrosion under insulation (CUI) on carbon and stainless steel pipe networks.

Standard Dimensions & Core Advantages

Choose from our specialized range of elastomeric sheet rolls and pipe sections.

Black Rubber Foam Insulation Sheet Roll

Black Rubber Foam Insulation Sheet Roll

Standard Dimension: NBR/PVC composition; Thickness ranging from 6mm to 50mm; Density of 40-55 kg/m³; Operating temperature range from -40℃ to 105℃.

  • Consistent density profile for uniform thermal resistance.
  • High flexibility for wrapping around large valves and square ducts.
  • Class 0/1 fire rating helps meet local fire safety regulations.
Black Rubber Foam Insulation Pipe

Black Rubber Foam Insulation Pipe

Standard Dimension: Thickness from 9mm to 40mm; Inner Diameter (ID) from 6mm to 114mm; Service temperature limits from -40℃ to 105℃.

  • Pre-slit or solid pipe geometries for quick installation.
  • Extrusion sizing ensures a tight fit on copper, iron, and plastic pipes.
  • Limits thermal losses and prevents freezing in outdoor pipes.

Global Project Performance

Our materials are specified by energy and chemical industries worldwide for HVAC networks, maritime bulkheads, and cryogenic storage. We offer customizable finishes, including foil facings, glass-cloth jackets, and pressure-sensitive acrylic adhesives.

Project Reference

Frequently Asked Questions (FAQ)

Answers to common questions about material selection, thermal design, and international logistics.

Q1: What is elastomeric rubber foam insulation used for?
A1: It is primarily used for HVAC ducts, commercial air conditioning pipes, building thermal insulation, industrial process piping (for cold/hot control), and acoustic damping in plant rooms.
Q2: Is Kingflex rubber foam insulation fire resistant?
A2: Yes, our elastomeric products are formulated with flame retardants. They meet international standards such as BS 476 Part 7 (Class 1) and UL94 V-0, providing self-extinguishing properties that do not drip flame droplets.
Q3: What is the difference between rubber foam and rock wool insulation?
A3: Rubber foam is a flexible, closed-cell material that provides excellent moisture resistance and vapor protection, making it ideal for refrigeration, HVAC, and condensation control. Rock wool is a fibrous material with high temperature resistance, suitable for industrial high-temperature piping and heavy fireproofing.
Q4: Do you provide customized insulation products?
A4: Yes, we provide OEM and ODM services. We can customize density, wall thickness, inside diameter, colors, and laminated backings (such as aluminum foil or self-adhesive layers) to meet specific project guidelines.
Q5: What certifications do your products have?
A5: Our production lines maintain certificates for CE, REACH, RoHS, UL94, BS 476, and ASTM. This ensures compliance for projects in Europe, the Americas, the Middle East, and Asia.
Q6: Are Kingflex products traceable?
A6: Yes, each batch is fully traceable. From raw elastomer blending through our continuous vulcanization ovens to final packaging, we maintain batch records and quality control checklists.
Q7: What thickness of rubber foam insulation sheets can you produce?
A7: We produce sheet insulation in standard thicknesses from 6mm up to 50mm. For thicker applications, multi-layer installations are recommended using our specialized contact adhesives.
Q8: What is the typical service life of your rubber-plastic insulation products?
A8: Under standard indoor operating conditions and proper installation, our materials have a service life of 10 to 15 years, maintaining consistent thermal resistance and structure.

Complete Insulation Systems Range

Select from our range of structural foam sheets, elastomeric tubes, and high-temperature thermal materials.

Cryogenic insulation for storage tanks

Cryogenic Insulation for Large-Scale Storage Tanks & LNG

Request Quote
Ultra low temperature pipe insulation

Flexible Insulation Systems for Ultra-Low Temp Pipe Networks

Technical Profile
Kingflex NBR PVC Manufacturer

Kingflex High-Performance NBR PVC Insulation Tubing

Factory Direct
Closed Cell Rubber Foam for Cryogenic Equipment

Closed Cell Rubber Foam for Cryogenic Equipment Systems

Verify Certifications
Kingflex cryogenic thermal system

Kingflex Cryogenic Thermal System (Ultra Low Temperature)

View Specifications
Flexible rubber foam sound absorbing insulation

Flexible Sound-Absorbing Rubber Foam Insulation

Acoustic Specs
fiber glass wool thermal insulation blanket

Fiber Glass Wool Thermal Insulation Blanket Systems

Pricelist Details
Rock Wool Insulation Board

High Density Rock Wool Insulation Board & Slab

Wholesale Quotes