Our premium 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) |
≤0.91×10¹³ |
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 |
⚡
Our 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.
📏 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 |
❓ Frequently Asked Questions
What are the main benefits of using closed-cell rubber foam insulation?
Closed-cell rubber foam provides superior thermal insulation, low water absorption, exceptional flexibility, and excellent sound dampening capabilities, which effectively reduces HVAC system operational noise.
What is the temperature application range for this insulation sheet?
This rubber foam insulation sheet is highly versatile, with an operating temperature range from -50°C up to 110°C, making it suitable for both cold and hot process piping.
How does the material perform in terms of fire safety?
It meets strict fire protection requirements. It is rated Class 0 & Class 1 under BS 476 standards, with self-extinguishing safety properties and low smoke/flame index compliance.
Does this insulation resist environmental hazards like moisture and mold?
Yes. The product exhibits high resistance to water vapor permeability, excellent fungi resistance, as well as outstanding protection against ozone, UV radiation, and general weather decay.
What roll sizes and thicknesses are available?
Thicknesses range from 1/4" (6mm) up to 2" (50mm). Roll widths are available in standard 1m, 1.2m, and 1.5m variations to accommodate different site dimensions.
Kingflex
