Insulator Pad FC650
Trackelast FC650 Insulator Pad has been specially designed with a high degree of fire resistance and excellent electrical insulation properties. It was derived from a formulation achieving a class 0 standard when tested to fire specifications BS476 parts 6 and 7.
The main application is as a fire retardant insulation pad used on underground systems for third rail isolation and other areas where good fire and electrical application insulation properties are required. This material is fully compliant with LU Standard 1-085 Fire Safety Performance of Materials.
Used by TfL
Fully compliant with LU Standard 1-085 Fire Safety Performance of Materials
Physical Properties
| Test | Method | Conditions | Data | Units |
| Hardness | ISO 48 | 90 | oIRHD | |
|---|---|---|---|---|
| Density | ISO 2781 | 1.65 | g/cm3 | |
| Tensile Strength | ISO 37 | 5.9 | MPa | |
| Elongation at Break | ISO 37 | 60 | % | |
| Electrical Resistance | BS 903pt. C2 | 500v dc | 2.5 x 1011 | Ω |
| Static Stiffness, 3mm | Flat pad, 0.2 - 50kN | 41400 | kN/mm/m2 | |
| Static Stiffness, 3mm | Profiled pad, 0.2 - 50kN | 4250 | kN/mm/m2 | |
| Water Absorption | BS 903pt. A16 | 7 days, 21oC | 0.3 | % |
| Compression Set | ISO 815 | 24hrs, 70oC | 16.1 | % |
| Oxygen Index | ISO 4589-2 | 46.2 | % |
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