KINGFLEX brand rubber foam insulation tube has a good insulation effect, flexible, effective to reduce the resonance and vibration, and good winding and toughness, easy installation, can be used for variety of curved and irregular pipes, beautiful appearance. Combined with veneer and a variety of accessories, to enhance the while system tightness.
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).
Ideal for Chilled water pipes, condense pipes, air ducts, and hot-water pipes
Our rubber foam insulation tube offers excellent performance to meet the requirements of different applications. Using nitrile rubber as the main raw material, it is processed into a flexible rubber-plastic heat-insulating material featuring fully closed cell structures. This superior structure makes the product ideal for thermal protection in public spaces, industrial plants, clean rooms, educational centers, and medical institutions.
Technical Data Sheet
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 (Water Vapor Diffusion Resistance)
-
≥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 G21
Ozone resistance
Good
GB/T 7762-1987
Resistance to U.V. and weather
Good
ASTM G23
Frequently Asked Questions
What are the main application areas for this rubber foam insulation tube?
It is widely applied in HVAC chilled water pipes, condensation lines, air ducts, and hot-water piping systems of various air-conditioning equipment.
Why is closed pore foaming important for insulation?
The completely closed-cell structure blocks moisture and water vapor infiltration (permeability index ≤0.91×10⁻¹³ Kg/(m.s.pa)), which maintains stable thermal conductivity over time and prevents condensation.
What temperature range can this insulation material withstand?
The material supports a wide working temperature range of -50°C to 110°C, rendering it versatile for hot-water, chilled, and refrigeration pipelines.
How does the material perform in fire safety testing?
It achieves Class 0 & Class 1 fire ratings according to BS 476 Part 6 & Part 7, exhibiting excellent flame retardancy with a 25/50 flame and smoke development index (ASTM E 84).
Is it resistant to aging, ozone, and outdoor weather?
Yes, our rubber foam materials pass standard tests like ASTM G23 for U.V. and weather resistance, and GB/T 7762-1987 for ozone resistance, ensuring good long-term outdoor stability.
Kingflex
