Wholesale Closed Cell Rubber Foam Insulation Tube Suppliers, Factory

Product Description

Kingflex rubber foam insulation product is ideally designed with an excellent fire and safety insulation performance according to the market demand. Kingflex adopt unique micro foaming technology. Product cells are uniformed and fined, have excellent heat preservation heat insulation performance and higher safety fireproof performance. It has achieved the highest fire certification of BS standard. It has reached the highest safety standards for fireproofing in the world, bringing higher security for users.
  • 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).
Kingflex 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
  • excellent thermal insulation - very low thermal conductivity
  • excellent acoustic insulation - can reduce noise and sound transmitting
  • moisture resistant, fire resistant
  • good strength to resist deformation
  • closed cell structure
  • ASTM/SGS/BS476/UL/GB Certified BS476, UL94, CE, AS1530, DIN, REACH and Rohs
Frequently Asked Questions
What is the fire certification standard of Kingflex rubber foam insulation?
Kingflex rubber foam insulation has achieved the highest fire certification of BS standard (Class 0 & Class 1 according to BS 476 Part 6 & 7), meeting top safety standards for fireproofing.
What are the available thicknesses and lengths of the product?
It features nominal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″, 1″, 1-1/4”, 1-1/2″, and 2” (6mm to 50mm) and comes in standard lengths of 6ft (1.83m) or 6.2ft (2m).
What is the temperature range for Kingflex rubber foam?
The suitable temperature range for Kingflex rubber foam insulation is from -50°C to 110°C, tested under the GB/T 17794-1999 standard.
How does the closed-cell structure benefit the insulation performance?
The uniform micro foaming technology and closed-cell structure ensure excellent heat preservation, low thermal conductivity, and outstanding resistance to moisture and water absorption.
What global certificates does Kingflex rubber foam insulation hold?
The product is certified under ASTM, SGS, BS476, UL, and GB standards, including compliance with BS476, UL94, CE, AS1530, DIN, REACH, and Rohs.

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