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Polyurethane potting
compound/encapsulant
- Low viscosity
- Low moisture sensitivity
- Glass-like finish
- Excellent adhesion
- Low stress thermal cycling
- Thermally conductive
- No sedimentation
- Excellent electrical properties
- Excellent chemical stability
Description
IRS 3030 is a high performance, general purpose polyurethane
electronics grade potting compound and electrical encapsulant. It has an
excellent glass-like finish and is very low in viscosity resulting in a resin
system which is flame retardant, has excellent adhesion and low stress thermal
cycling characteristics, whilst still retaining the flow properties necessary
to fill intricate units. IRS 3030 has none of the problems usually associated
with filled polyurethane systems such as sedimentation and moisture sensitivity,
and degasses easily.
| Typical properties | |||||||||
| Material Part A Part B |
Filled polyurethane Isocyanate |
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| Colour Part A Part B Mixed |
Grey/black Brown Black |
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| Density @ 25°C (g/cm³) Part A Part B Mixed |
1.47 1.22 1.3 |
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| Viscosity @ 25°C (cps) Part A Part B Mixed |
30,000-45,000 250 7,000-8,000 |
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| Mix ratio (Part A:Part B) | 4.5:1 (volume) 3.7:1 (weight) |
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| Curing 250g @ 25°C |
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| Cured properties 7 days @ 25°C | |||||||||
| Hardness, Shore A @ 25°C |
90-95 |
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| Hardness, Shore D @ 25°C @ 60°C @ -20°C |
50-55 32-37 82-87 |
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| Dielectric strength | 33 kV/mm | ||||||||
| Volume resistivity | 20 x 1010 ohm-cm | ||||||||
| Operating temperature | tba | ||||||||
| Shelf life | 12months Store in a cool dry place. Part A and B are both moisture sensitive so the lids must be kept on tightly. |
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| Ordering information | ||
| Part number | Description | |
| IRS3030-1KG | Polyurethane potting compound, 1 kg twinpack | |
| IRS3030-5KG | Polyurethane potting compound, 5 kg bulk kit | |
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See also! Silicone encapsulation & potting compounds Low density epoxy potting compound Flexible, low stress epoxy potting compound Metering, mixing & dispense systems
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March 2007
Version 0.9
17 Station Field Industrial Estate, Banbury Road
KIDLINGTON, Oxfordshire, OX5 1JD, ENGLAND
Tel: +44 1865 842842 Fax: +44 1865 842172 info@intertronics.co.uk
© INTERTRONICS 1997, 2007