Kingflex Kingflex

China Closed Cell NBR Rubber Foam Insulation Manufacturers, Quotes

Closed Cell NBR Rubber Foam Insulation At -40°C, Kingflex Closed Cell Insulation becomes hard and as temperature drops below -40°C will be increasingly brittle; however this hardening chracteristic does not affect thermal or water vapour permeability.

Product Description

The Fire rating standard method of tests conducted under controlled laboratory conditions is a measure of a material to spread flame when compared to a known standard and is not intended to reflect hazards presented by this or any material under actual fire conditions.

Good flexibility at low temperature

Clean, dust-free, fast and easy installation

Low thermal conductivity

Good uniform products quality appearances

High water vapor resistance factor, >5500

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Product Dimensions
Thickness Width 1m Width 1.2m Width 1.5m
Inches mm Size(L*W) ㎡/Roll Size(L*W) ㎡/Roll Size(L*W) ㎡/Roll
1/4" 6 30 × 1 30 30 × 1.2 36 30 × 1.5 45
3/8" 10 20 × 1 20 20 × 1.2 24 20 × 1.5 30
1/2" 13 15 × 1 15 15 × 1.2 18 15 × 1.5 22.5
3/4" 19 10 × 1 10 10 × 1.2 12 10 × 1.5 15
1" 25 8 × 1 8 8 × 1.2 9.6 8 × 1.5 12
1 1/4" 32 6 × 1 6 6 × 1.2 7.2 6 × 1.5 9
1 1/2" 40 5 × 1 5 5 × 1.2 6 5 × 1.5 7.5
2" 50 4 × 1 4 4 × 1.2 4.8 4 × 1.5 6
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
Product Application
Frequently Asked Questions

1. What is the recommended service temperature range for this insulation material?

This thermal insulation material is designed to operate efficiently within a temperature range of -50°C to 110°C, tested in compliance with standard GB/T 17794-1999.

2. How does the insulation perform under fire safety standards?

The material achieves a Class 0 & Class 1 Fire Rating in accordance with BS 476 Part 6 & 7. Additionally, it features a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84, and an oxygen index of ≥36.

3. What is the thermal conductivity rating at different temperatures?

According to ASTM C 518 testing, the thermal conductivity values are exceptionally low: ≤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.

4. Does the material prevent moisture and water vapor penetration?

Yes, the insulation features a high water vapor resistance factor (μ ≥ 10000) and a water vapor permeability rating of ≤0.91×10⁻¹³ Kg/(m.s.pa), ensuring superior resistance to condensation.

5. Is this insulation resistant to environmental elements like UV and mold?

Absolutely. The material offers outstanding resistance to fungi (ASTM 21), ozone (GB/T 7762-1987), and UV/weathering (ASTM G23), making it highly durable for outdoor and humid environments.

6. What dimensions and thicknesses are standardly available?

The insulation is available in thicknesses ranging from 1/4" (6mm) to 2" (50mm). Roll widths are offered in 1m, 1.2m, and 1.5m to suit different installation requirements.

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