China Kingflex NBR Rubber Foam Sheet Roll Manufacturer, Pricelist

Kingflex offers elastomeric closed cell foaming Nitrile rubber foam insulation sheet roll.

Product Description

Closed cell foam structure
Foam insulation roll
Thermal insulation performance
Elastomeric foam insulation
Key Insulation Advantages

Closed cell foam with a high closed cell ratio significantly improves the water vapor isolation ability. It is highly resistant to condensation and offers excellent moisture resistance to ensure the long-term insulation effect.

Nitrile rubber foam insulation material adopts an advanced closed cell foam process. This structure gives it unique water vapor resistance, low thermal conductivity, and sound insulation & shock absorption properties. It is widely applicable to water pipes and ducts in HVAC systems, refrigeration and heating equipment, hot water piping, and process pipelines for cold insulation, ensuring the tightness of the entire system.

Insulation material properties
Nitrile rubber foam application
Installation process
Piping insulation
Ductwork insulation
Refrigeration pipeline protection
High performance insulation sheet
Nitrile Rubber Foam 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 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
Insulation testing certification
Frequently Asked Questions

What are the benefits of the closed cell structure in foam insulation?

The closed cell structure features a high closed cell ratio, which drastically reduces water vapor transmission. This prevents moisture ingress, minimizes condensation risks, and ensures long-lasting thermal insulation efficiency.

What is the thermal conductivity of this insulation material?

The material exhibits excellent thermal insulation performance, with a thermal conductivity of ≤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, as tested per ASTM C 518.

Is this nitrile rubber foam insulation fire-resistant?

Yes, it achieves Class 0 & Class 1 fire ratings according to BS 476 Part 6 and 7 standards. It also meets the ASTM E 84 standard with a Flame Spread and Smoke Developed Index of 25/50.

What temperature range can this insulation material withstand?

According to the GB/T 17794-1999 test standard, the material is designed to operate safely within a temperature range of -50°C to 110°C.

How does the material perform against mold and environmental weathering?

The nitrile rubber insulation displays good resistance to fungi (ASTM 21), ozone (GB/T 7762-1987), and UV/weathering (ASTM G23), making it highly durable for various industrial environments.

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