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No need moisture barrier
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Flexible down to -200℃ to +125℃
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No need the expansion joint
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Low thermal conductivity
These are flexible, closed-cell, rubber foams based on dienes rubber. Flexible elastomeric foams exhibit such a high resistance to the passage of water vapour that they do not generally require additional water-vapour barriers. Such high vapour resistance, combined with the high surface emissivity of rubber, allows flexible elastomeric foams to prevent surface condensation formation with comparatively small thicknesses.
| Product Dimensions |
| Inches |
mm |
Size (L * W) |
㎡ / Roll |
| 3/4" |
20 |
10 × 1 |
10 |
| 1" |
25 |
8 × 1 |
8 |
| Main Property |
Base Material |
Test Method |
| ULT Grade |
LT Grade |
| Thermal Conductivity |
-100°C: 0.028
-165°C: 0.021 |
0°C: 0.033
-50°C: 0.028 |
ASTM C177 |
| Density Range |
60-80Kg/m³ |
40-60Kg/m³ |
ASTM D1622 |
| Recommend Operation Temperature |
-200°C to 125°C |
-50°C to 105°C |
— |
| Percentage Of Close Areas |
>95% |
>95% |
ASTM D2856 |
| Moisture Performance Factor |
NA |
<1.96x10⁻¹¹ g/(m·s·Pa) |
ASTM E 96 |
| Wet Resistance Factor |
NA |
>10000 |
EN12086 / EN13469 |
| Water Vapor Permeability Coefficient |
NA |
0.0039g/h.m² (25mm thickness) |
ASTM E 96 |
| PH |
≥8.0 |
≥8.0 |
ASTM C871 |
| Tensile Strength Mpa |
-100°C: 0.30
-165°C: 0.25 |
0°C: 0.15
-50°C: 0.218 |
ASTM D1623 |
| Compressive Strength Mpa |
-100°C: ≤0.3 |
-40°C: ≤0.16 |
ASTM D1621 |
❓ What is the operational temperature range for these elastomeric foams?
The ULT Grade operates within an extreme temperature range of -200°C to 125°C, while the LT Grade is suitable for temperatures from -50°C to 105°C.
❓ Do these insulation foams require an additional water-vapour barrier?
No, these flexible closed-cell rubber foams exhibit high resistance to the passage of water vapour, which generally eliminates the need for additional moisture barriers.
❓ How do the foams prevent condensation?
The high vapour resistance, paired with the high surface emissivity of the rubber, prevents surface condensation from forming even with relatively thin insulation profiles.
❓ What is the cell structure of the material?
Both the ULT and LT Grades feature a closed-cell structure with a high percentage of closed areas exceeding 95%, based on ASTM D2856 testing.
❓ What standard roll sizes are available?
Standard options include 3/4" (20mm) thickness at 10 × 1 meters (10㎡ per roll), and 1" (25mm) thickness at 8 × 1 meters (8㎡ per roll).
❓ Are these materials chemically neutral?
Yes, they have a pH value of ≥8.0 as tested per ASTM C871, indicating a non-corrosive nature that protects underlying metal pipes.
Kingflex
