Kingflex NBR Elastomeric Insulation Rubber Foam Tube adopts high-performance NBR/PVC as the main raw material with various quality supplementary material by special frothing process to produce the soft energy conversation foam insulation. It has closed cell construction and has many great features such as soft resistance refractive index, cold resistance, fire-retardant, waterproof, low thermal conductivity , shock and sound absorption and so on. It can be widely used in large-scale central and home air conditioning,construction, chemicals, textile and electrical industries.
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).
NBR Elastomeric Insulation Rubber Foam Tube is generally black in color, other colors are available upon request. The extruded flexible tube are specially designed to fit the standard diameters of copper, steel and PVC piping.
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 (Water Vapor Diffusion Resistance)
-
≥10000
-
Thermal Conductivity (at -20°C)
W/(m.k)
≤0.030
ASTM C 518
Thermal Conductivity (at 0°C)
W/(m.k)
≤0.032
ASTM C 518
Thermal Conductivity (at 40°C)
W/(m.k)
≤0.036
ASTM C 518
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 G21
Ozone resistance
-
Good
GB/T 7762-1987
Resistance to U.V. and weather
-
Good
ASTM G23
Frequently Asked Questions
What are the main benefits of NBR elastomeric insulation rubber foam tubes?
NBR elastomeric insulation offers low thermal conductivity, excellent cold resistance, extremely low water vapor transmission, superior fireproof performance (Class 0 & Class 1), and great flexibility, making it ideal for efficient thermal control.
What temperature range can this insulation foam tube handle?
This NBR elastomeric insulation tube operates efficiently across a broad temperature range from -50°C to 110°C, complying with standard testing methods like GB/T 17794-1999.
Is this product safe for indoor environments regarding formaldehyde?
Yes, our rubber foam insulation contains no formaldehyde and operates with high elasticity, offering outstanding sound absorption and shock absorption safe for indoor and commercial applications.
How does this insulation tube perform in fire situations?
It features exceptional fire safety credentials including a Class 0 & Class 1 Fire Rating (BS 476 Part 6 & 7), as well as a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84 standard test.
Does this insulation tube resist mold and UV exposure?
Yes. According to standardized testing (ASTM G21 and ASTM G23), the material demonstrates excellent fungi resistance, ozone resistance, and durability against weather and U.V. exposure.
Kingflex
