China Kingflex Flexible Elastomeric NBR Foam Rolls Manufacturer, Supplier

1 / 1

China Kingflex Flexible Elastomeric NBR Foam Rolls Manufacturer, Supplier

Kingflex flexible elastomeric rubber foam sheet roll for HVAC part.

Send Inquiry

Product Description

Rubber foam insulation material is a flexible and robust insulation material which offers easy and fast installation process and nevertheless a long and durable lifespan. It is made with advanced technology and advanced full-automatic continuous production line imported from abroad, using polyvinyl Chloride (NBR, PVC) as main raw materials and other high quality auxiliary materials through foaming and so on special procedure.

Dimension Specifications
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

Low Thermal Conductivity

Cellular foam structure, low thermal conductivity, high surface heat release coefficient, good thermal insulation effect.

Closed-Cell Foam Structure

Closed pore structure, independent bubble holes are not connected, forming a closed vapor barrier layer, which can form multiple barriers to water vapor molecules, even if the pipe surface is damaged, it can still achieve vapor isolation.

Good Flexibility

Rubber foam rolls are flexible, suitable for all kinds of bends and irregular pipes, convenient for construction, saving work and materials.

Technical Specifications
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

Q1: What are the main materials used in this insulation?

This insulation material is manufactured using Polyvinyl Chloride (NBR, PVC) as the primary raw materials, combined with high-quality auxiliary ingredients through a specialized foaming process.

Q2: How does the closed-cell structure benefit the insulation performance?

The closed-cell structure consists of independent, unconnected bubble holes. This configuration creates a reliable and continuous vapor barrier that effectively resists water vapor intrusion, maintaining isolation properties even if the outer surface suffers minor damage.

Q3: What is the operating temperature range for this rubber foam insulation?

The material operates stably within a wide temperature spectrum, ranging safely from -50°C up to 110°C, making it suitable for a variety of heating, cooling, and plumbing pipes.

Q4: Is the material flexible enough for complex pipe installations?

Yes. The rubber foam rolls are highly flexible and elastic, allowing them to bend around curves and adapt to irregular pipe profiles easily, which saves installation time and reduces material waste.

Q5: What are the fire and safety ratings of this insulation?

It meets Class 0 and Class 1 fire ratings according to BS 476 Parts 6 & 7 standards, and achieves a 25/50 Flame Spread and Smoke Developed Index under ASTM E 84 testing.

Q6: How does the thermal conductivity change with temperature?

The thermal conductivity remains low across different temperatures: it is ≤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, ensuring excellent thermal retention and energy efficiency.