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Saint Gobain Norseal® K Series – K20 – 0.4mm
Micro-Cellular Polyurethane Foam
£0.00
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- Excellent compression set-resistance
- Highly resilient (will not collapse)
- Dissipates stresses
Product is on backorder
Description
Gasketing – Norseal PUR has excellent resistance to compression set and high resiliency that ensures the seal will not break down over extended use, making it a preferred choice for gasketing applications.
Control of Unwanted Energy – The Norseal PUR line of cushioning foam is ideal for controlling unwanted energy. These special formulations protect sensitive components by damping shock, dissipating motion, isolating vibration, and absorbing impact energy.
The Norseal series micro-cellular polyurethane foams are offered in a broad range of properties, making them ideal for a variety of gasketing and energy absorption needs. Norseal micro-cellular foams are categorized by degree of deflection force.
By varying the modulus and density, Saint-Gobain Performance Plastics has developed this series of materials that meets the demands of design engineers today. Most Korel foams are available with an aggressive acrylic adhesive on one side to facilitate placement.
K20 foams are very soft and highly conformable, with a very low force to deflect.
Benefits
- Available cast on to polyester film for stability and low deformation
- Aggressive acrylic adhesive (optional) facilitates assembly
- Easy to achieve intricate die-cut parts
- Conformable and flexible even in extreme environmental conditions
Features
- Resistant to moisture and most chemicals
- Highly resilient (will not collapse)
- Excellent compression set-resistance
- Dissipates stresses
Recommended Uses
- To be used in the following purposes: Cellular telephones, Electrical enclosures, Electronic gasketing, Vibration damping, Cushioning, Acoustical control, Bumpers, Instrument panels, Spacers.
Typical Properties
| Physical | Test Method | K20 |
|---|---|---|
| Density lb./cu. ft. (kg/m3) | ASTM D3574 | 24 (380) |
| CFD, psi (kPa) 12.7mm/min@25 % Deflection | ASTM D3574 Test C | 2.6 (18) |
| FTC psi (kPa) @25% Deflection | ASTM D1667 1 | 3 (21) |
| Compression Set % @ 73°F (23°C) | ASTM D3574 Test D | < 5 |
| Compression Set % @158°F (70°C) | ASTM D3574 Test D | < 10 |
| Constant Use, Max | 158°F (70°C) | |
| Intermittent Use, Max | 250°F (121°C) | |
| Thermal Conductivity BTU– in/hr-sqft°F(W/mC) | ASTM E1530 | 0.6 (0.086) |
| Surface Resistivity ohm/sq | ASTM D257 | 3 X 10/15 |
| Volume Resistivity ohm.cm | ASTM D257 | 4 X 10/14 |
| Dielectric Ste volts/mil | ASTM D149 | 47 |
| Fogging | SAE-J 1756 3 hrs@100 °C | Pass |
Standard Roll Size
| Item | Colour | T (mm) | W (mm) | L (mm) |
|---|---|---|---|---|
| K20-0.4mm | Black | 0.4 | 508 | 100 |
| K20-0.5mm | Black | 0.5 | 508 | 100 |
| K20-0.7mm | Black | 0.7 | 508 | 50 |
| K20-0.8mm | Black | 0.8 | 508 | 50 |
| K20-1.0mm | Black | 1.0 | 508 | 50 |
| K20-1.3mm | Black | 1.3 | 508 | 50 |
| K20-1.5mm | Black | 1.5 | 508 | 50 |
| K20-2.0mm | Black | 2.0 | 508 | 40 |
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