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Wholesale Kingflex rubber plastic foam insulation tube Manufacturers, Supplier
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Wholesale Kingflex rubber plastic foam insulation tube Manufacturers, Supplier

Wholesale Kingflex rubber plastic foam insulation tube Manufacturers, Supplier

Kingflex rubber plastic foam insulation tube is made from the nitrile-butadiene rubber (NBR) and polyvinyl chloride(PVC) as main raw material and other high quality auxiliary materials through foaming, which is closed cell elastomeric material, fire resistance, UV-anti and environmental friendly. It can be widely used for air condition, construction, chemical industry, medicine, light industry and so on. Normal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″,1″, 1-1/4”, 1-1/2″ and 2” (6, 9, 13, 19, 25 , 32, 40 and 50mm). Standard Length with 6ft (1.83m) or 6.2ft(2m).
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Product Description

Elastomeric Foam Insulation Sheet
Elastomeric Foam Insulation Roll
Rubber Foam Pipe Insulation
Technical Data
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, ISO4589
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
Production Line View
Warehouse Stock
Closed Cell Structure Detail
Insulation Tube Installation
Quality Check
Pipe Application
Packaging and Shipping
Low Thermal Conductivity
Characterized by a totally closed cell structure and based on high-quality synthetic rubber, this insulation offers exceptionally low conductivity & heat conductivity to prevent energy loss.
Aesthetic & Decorative
Rubber foam pipes can play a decorative role on pipes and equipment. The appearance of the rubber-plastic insulation pipe is smooth and flat, and the overall appearance is beautiful.
Excellent Safety Profile
The insulation tube is made of NBR and PVC. It doesn't contain fibrous dust, benzaldehyde, and Chlorofluorocarbons. It has good moisture resistance, low conductivity, and is highly fireproof.
Versatile & Cost-Effective
Widely used for the insulation of pipework and ducting. Available in different sizes to meet customers' specific requirements. Our prices are very competitive in the market.
Installation Process
Completed Pipe Insulation project
Frequently Asked Questions (FAQ)
What is the temperature range for this rubber foam insulation?
This insulation is suitable for a temperature range from -50°C to 110°C, tested in compliance with GB/T 17794-1999 standards.
What materials are used to make these insulation tubes?
The insulation tubes are manufactured from a high-quality blend of NBR (Nitrile Butadiene Rubber) and PVC (Polyvinyl Chloride). They are free from fibrous dust, benzaldehyde, and Chlorofluorocarbons (CFCs).
Does the product have reliable fireproof ratings?
Yes, the material exhibits excellent fireproof performance, achieving Class 0 & Class 1 fire ratings according to BS 476 Part 6 & Part 7, and a Flame Spread & Smoke Developed Index of 25/50 under ASTM E 84.
Is this insulation resistant to environmental factors like moisture and UV?
Yes, the closed-cell structure provides high moisture resistance (water vapor permeability μ ≥ 10000). It also shows good resistance to fungi (ASTM 21), ozone (GB/T 7762-1987), and U.V. / weathering (ASTM G23).
Where is this insulation material typically applied?
It is widely used for the thermal insulation of various pipework and ducting systems. Beyond thermal performance, its smooth and flat surface provides an aesthetically pleasing, decorative finish to industrial and commercial equipment.
Can I order custom sizes for my project?
Yes, different sizes are available and can be customized according to specific customer requirements to fit various pipe and duct diameters.

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