Wholesale Kingflex Low Density Rubber Foam Sheet Manufacturer, Suppliers

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Wholesale Kingflex Low Density Rubber Foam Sheet Manufacturer, Suppliers

Kingflex high quality low density flexible rubber foam insulation sheet.

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Product Description

The rubber foam insulation sheet is a black flexible elastomer nitrile butadiene rubber foam. It is an original closed cell elastic foam with a slightly wrinkled surface that makes it adaptable to various shapes of installation, while the expanded closed cell structure makes it an excellent insulating material, which is also effective for reducing HVAC noise.

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

The rubber foam sheet has the following characteristics: low density, low thermal conductivity, low water absorption, long service time, good flame retardant effect, self-extinguishing, meet the requirements of fire prevention, safe and reliable.

Low Density & Flexibility

Low Thermal Conductivity

Low Water Absorption

Flame Retardant & Self-extinguishing

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

Frequently Asked Questions

What are the primary properties of the rubber foam insulation sheet?

The sheet is made of flexible elastomer nitrile butadiene rubber foam. It features a closed-cell elastic structure, wrinkled surface adaptability, low density, low thermal conductivity, and low water absorption, making it an excellent barrier against thermal transfer and HVAC noise.

What is the operating temperature range for this material?

The material operates stably in a temperature range of -50°C to 110°C, tested in compliance with GB/T 17794-1999 standards.

What are the fire safety and flame ratings of the sheet?

It meets Class 0 & Class 1 fire ratings according to BS 476 Part 6 & 7. Additionally, it has a Flame Spread and Smoke Developed Index of 25/50 (ASTM E 84) and an Oxygen Index ≥36 (GB/T 2406, ISO4589), indicating strong flame retardant and self-extinguishing behavior.

How well does it resist external elements like moisture, ozone, and UV rays?

The material displays excellent water vapor permeability resistance (μ ≥10000) and good resistance to fungi (ASTM 21), ozone (GB/T 7762-1987), and UV/weathering exposure (ASTM G23), ensuring long-term durability.

What width options are available for the rubber foam rolls?

The rolls are available in three standard width dimensions: 1 meter, 1.2 meters, and 1.5 meters. Length and area per roll scale corresponding to the thickness selected.

What thicknesses are offered, and how do they impact the area per roll?

Thicknesses range from 1/4" (6mm) to 2" (50mm). As thickness increases, roll lengths adjust—for instance, a 1/4" roll at 1m width provides 30㎡, whereas a 2" roll at 1m width provides 4㎡.