China Kingflex Rubber & Plastic is a flexible closed-foam thermal insulation Manufacturers, Quotes

Kingflex Rubber & Plastic is a flexible closed-foam thermal insulation material foamed from rubber as the main raw material. It has no fiber dust, no formaldehyde, and no chlorofluorocarbons. It is suitable for mediums that destroy the ozone layer. Thermal insulation of various pipes and equipment between from -50 to 110 ℃. 

Product Description

Insulation Materials
Insulation Specs
Product Structure
Performance Test
Production Process
Key Product Advantages
Closed cell structure
Excellent ability to prevent the spread of flames
Good ability to control heat release
Flame retardant class0 / class1
Easily install
Low thermal conductivity
High water permeability resistance
Elastomeric and flexible material, soft and anti-bending
Cold-resistant and heat-resisting
Shake reduction and sound absorption
Good fire-blocking and waterproof
Vibration and resonate resistance
Beautiful appearance, easy and fast to install
Safety (neither stimulates the skin nor harms health)
Prevent mould from growing
Acid-resisting and alkali-resisting
Long service life: above 20 years
Size Specifications

Normal Wall Thicknesses: 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: 6ft (1.83m) or 6.2ft (2m).

Product Application
Quality Standard
Inspection and Verification
Packaging Detail
Warehouse Stock
Project Case
Installation Case
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 - ≥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
Frequently Asked Questions
QWhat is the expected service life of this insulation material?
The elastomeric closed cell structure ensures a long service life of above 20 years, resisting aging, ozone, and harsh weather conditions.
QWhat are the fire performance and safety ratings of the insulation?
The material complies with Class 0 & Class 1 Fire Ratings under BS 476 Part 6 and Part 7. It has excellent capabilities in preventing the spread of flames and controlling heat release.
QWhat sizes and wall thicknesses are available?
It comes in wall thicknesses ranging from 1/4” up to 2” (6mm to 50mm). The standard lengths are either 6ft (1.83m) or 6.2ft (2m).
QIs this insulation material moisture-resistant?
Yes. Due to its closed-cell structure, it features high water permeability resistance (water vapor permeability ≤0.91×10⁻¹³ Kg/m.s.pa) and effectively prevents mold growth.
QWhat is the thermal conductivity of this insulation?
It offers low thermal conductivity values: ≤0.030 W/(m.k) at -20°C, ≤0.032 at 0°C, and ≤0.036 at 40°C, tested in compliance with ASTM C 518.
QWhat is the working temperature range?
It operates safely within a wide temperature range from -50°C to 110°C, making it suitable for both cold and heat-retaining applications.

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