Kingflex Kingflex

China Flexible Rubber Foam Insulation Pipe Manufacturer, Quotes

Kingflex rubber 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 elastermic 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. Nominal 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).

Product Description

Key Features & Advantages
Excellent fire-resistance performance & Sound absorption
Low thermal conductivity (K-Value)
Good moisture resistance
No crust rough skin
Good pliability and good anti-vibration
Environmentally friendly
Easy to install & Nice appearance
High oxygen index and low smoke density
Technical Data Overview
Technical Data Sheet
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
Product Showcase
Ordering and Customization Guidelines
1 It is better to send us your drawing first, as most of our products are customized.
2 Please inform the work environment and your other requirements (e.g. size, material, hardness, color, tolerance, etc) for quoting a right price.
3 A good price will be quoted after the confirmation of the details.
4 Before mass production, a sample checking is a must to ensure everything is going right as
Frequently Asked Questions

1. What is the working temperature range for this insulation material?

This thermal insulation material is designed to operate efficiently within a temperature range of -50°C to 110°C, making it suitable for a wide variety of heating, ventilation, and cooling applications.

2. How does the product perform under fire conditions?

It offers excellent fire-resistance performance with a Class 0 and Class 1 fire rating tested according to BS 476 Part 6 & Part 7, alongside a low smoke density and high oxygen index (≥36).

3. Does this material absorb moisture or water vapor?

No, the material has low water absorption (20% by volume tested via ASTM C 209) and exceptionally good water vapor permeability resistance (μ ≥10000, value ≤0.91×10⁻¹³ Kg/(m.s.pa)), preventing condensation and moisture buildup.

4. What is the thermal conductivity (K-Value) of the material?

The material features low thermal conductivity values: ≤0.030 W/(m.k) at -20°C, ≤0.032 W/(m.k) at 0°C, and ≤0.036 W/(m.k) at 40°C, ensuring high thermal efficiency.

5. Is this material resistant to outdoor weather conditions and mold?

Yes, it has been certified with Good ratings for fungi resistance (ASTM 21), ozone resistance (GB/T 7762-1987), and resistance to U.V. and outdoor weathering (ASTM G23).

6. Can I customize the dimensions and specifications of the products?

Absolutely. Most of our products are customizable. To ensure correct pricing and fit, please provide your drawings, working environment conditions, and specific requirements (such as size, hardness, material, and tolerances).

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