China Kingflex Thermal Insulation Rubber Foam Sheet Manufacturers, Supplier

Kingflex Thermal Insulation Rubber Foam Sheet is a kind of black flexible elastomeric nitrile rubber foam. It is original closed cell and fiber-free elastomeric foam.

Product Description

The expanded closed-cell structure makes it an efficient insulation. It is manufactured without the use of CFC's, HFC's or HCFC's. Thermal Insulation Rubber Foam Sheet is also effective for reducing HVAC noise. On cold systems, insulation thicknesses have been calculated to control condensation on the insulation outer surface, as shown in the table of thickness recommendation.
Thermal Insulation Sheet Properties
Thermal Insulation Sheet Application
Thermal Insulation Foam Sheet Roll
Elastomeric Foam Details
Closed Cell Insulation Structure
Rubber Insulation Material
HVAC Insulation Sheet
Flexible Foam Insulation
Thermal Insulation Core Specs
Thermal Insulation Sheet Measurement
Dimension Specifications
Dimension Chart
Thickness Width 1m Width 1.2m Width 1.5m
Inches mm Size(L*W) ㎡/Roll Size(L*W) ㎡/Roll Size(L*W) ㎡/Roll
1/4" 6 30 × 1 30 30 × 1.2 36 30 × 1.5 45
3/8" 10 20 × 1 20 20 × 1.2 24 20 × 1.5 30
1/2" 13 15 × 1 15 15 × 1.2 18 15 × 1.5 22.5
3/4" 19 10 × 1 10 10 × 1.2 12 10 × 1.5 15
1" 25 8 × 1 8 8 × 1.2 9.6 8 × 1.5 12
1 1/4" 32 6 × 1 6 6 × 1.2 7.2 6 × 1.5 9
1 1/2" 40 5 × 1 5 5 × 1.2 6 5 × 1.5 7.5
2" 50 4 × 1 4 4 × 1.2 4.8 4 × 1.5 6
Thermal Insulation Sheet Storage
Thermal Insulation Packaging
Technical Data
Technical Specifications
Property Unit Value Test Method
Temperature range °C (-50 - 110) GB/T 17794-1999
Density range Kg/m3 45-65Kg/m3 ASTM D1667
Water vapor permeability Kg/(m.s.pa) ≤0.91×10 ﹣¹³ DIN 52 615 / BS 4370 Part 2 1973
μ - ≥10000 -
Thermal Conductivity W/(m.k) ≤0.030 (-20°C) ASTM C 518
≤0.032 (0°C)
≤0.036 (40°C)
Fire Rating - Class 0 & Class 1 BS 476 Part 6 & Part 7
Flame Spread and Smoke Developed Index - 25/50 ASTM E 84
Oxygen Index - ≥36 GB/T 2406, ISO 4589
Water Absorption, % by Volume % 20% ASTM C 209
Dimension Stability - ≤5 ASTM C534
Fungi resistance - Good ASTM 21
Ozone resistance Good GB/T 7762-1987
Resistance to U.V. and weather Good ASTM G23
Indoor Air Quality-friendly
Fiber-free, formaldehyde-free, low VOCs, and non-particulate design.
Quiet & Sound Dampening
Provides effective vibration damage mitigation and noise blocking.
Highly Durable
Long-lasting protection structure built without a fragile vapor retarder.
The Manufacturing Process of Thermal Insulation Rubber Foam Sheet
The three main components used in the manufacturing of elastomeric closed cell foam insulation include the following:
  • Synthetic rubber blend, typically nitrile butadiene rubber (NBR) and/or ethylene-propylene-diene monomer (EPDM)
  • Polyvinyl chloride (PVC)
  • A chemical foaming agent
These components are combined in a large mixer, typically in batches of 500 pounds or more. The mixture is then put through extruding equipment to form a particular profile or shape, typically either a round tube or a flat sheet. The profile is heated in an oven to a specific temperature, a process that causes the chemical foaming agent to change from a solid to a gas. When this occurs, thousands of tiny air pockets (cells)—all of which are connected—form. The profile is carefully cooled to ensure that these cells remain unbroken and intact, maintaining the material’s closed cell structure. It is then cut to size and packaged for shipment. Elastomeric foams are made without the use of chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), or hydrofluorocarbons (HFCs), making them suitable for the toughest environmental specifications.
Frequently Asked Questions (FAQ)
What makes this thermal insulation sheet highly efficient?

The expanded closed-cell structure is designed to deliver superior insulation efficiency. It is also calculated to effectively control condensation on the outer surface of cold HVAC systems.

Does the manufacturing process use environmentally harmful gases?

No. The Thermal Insulation Rubber Foam Sheet is manufactured completely without the use of CFCs, HFCs, or HCFCs, ensuring compliance with strict environmental regulations.

Can this material assist with noise reduction?

Yes. In addition to thermal insulation, the foam sheet provides excellent sound attenuation, making it highly effective at blocking HVAC noises and dampening structure-borne vibrations.

What is the safe operating temperature range for this insulation?

According to the technical testing standard GB/T 17794-1999, the insulation sheet operates safely within a temperature range of -50°C to 110°C.

What fire safety certifications does this product hold?

The material holds Class 0 and Class 1 fire ratings under BS 476 Part 6 & 7 testing standards, and scores a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84.

What raw materials are used to make elastomeric closed-cell foam?

It is manufactured using three main components: a synthetic rubber blend (such as NBR and/or EPDM), Polyvinyl chloride (PVC), and a chemical foaming agent that expands into closed-cell air pockets during heating.

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