China Colorful NBRPVC foaming insulation tube Suppliers, Pricelist

Kingflex mainly specialized in insulation rubber foam product , it has closed cell construction and many great features such as low thermal conductivity, elastomeric,hot and cold resistant, fire retardant, waterproof, shocks and sound absorption and so on. Kingflex rubber materials is widely used in large central air conditioning system,chemicals,electrical industries such as the types of hot and cold media pipeline, all kinds of fitness equipment jacket/pads and so on to achieve lower cold loss.
  • 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

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
Technical Insulation Material Details
Thermal Insulation Application

Growth in the construction industry and many other industrial segments, combined with concerns over rising energy costs and noise pollution, is fueling market demand for thermal insulation. With more than 42 years of dedicated experience in manufacturing and applications, the industry standards are continuously met with top performance.

Industrial Manufacturing Production
Thermal Conductivity Comparison Chart
Frequently Asked Questions
What is the operating temperature range for this insulation material?
The material has a reliable operating temperature range of -50°C to 110°C, tested in compliance with GB/T 17794-1999 standards.
How does the insulation perform regarding fire safety and ratings?
It achieves a Class 0 & Class 1 fire rating according to BS 476 Part 6 & 7, with a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84 testing.
What is the thermal conductivity of the product at different temperatures?
Based on ASTM C 518 testing, the thermal conductivity values are ≤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.
Is this material resistant to environmental exposure, fungi, and ozone?
Yes, the insulation material demonstrates "Good" resistance to fungi (ASTM 21), ozone (GB/T 7762-1987), and UV/weather conditions (ASTM G23).
What is the density range and water absorption capacity of this insulation?
The density range is 45-65 Kg/m³ (ASTM D1667) and the water absorption capacity by volume is limited to 20% (ASTM C 209).
What are the water vapor permeability specifications of this material?
The water vapor permeability is ≤0.91×10⁻¹³ Kg/(m.s.pa) as tested under DIN 52 615 and BS 4370 Part 2 standards, with a resistance factor (μ) of ≥10000.

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