Invented by TWI, BarrikadeTM is a novel, fire-resistant and thermally insulating material. It consists of vermiculite particles bonded with an alkali-silicate based binder.
The specific physical and chemical properties of BarrikadeTM make it a versatile material, allowing fabrication of shapes which have low density, are inert and non-combustible, and exhibit good thermal insulating properties.
| Forms available |
Rigid panels, moulded shapes, coatings |
| Composition |
Exfoliated vermiculite particles bonded with a blended silicate binder. (Alternative inorganic binders can be used) |
| Structure |
Open cellular structure |
| Thermal conductivity |
0.10-0.35 Wm-1K-1 |
| Density |
250-350 kgm-3 |
| Temperature limit |
700°C (continuous use; with a silicate based binder)
1050°C (discontinuous use) |
| Compression strength |
0.70 MPa (for ρ = 250 kgm-3) |
| Flexural strength |
0.25-0.60 MPa (unlaminated*) |
| Organic content |
Nil |
| Asbestos content |
Nil |
| Machinability |
Good (similar to wood) |
* Laminating Barrikade (i.e. applying a skin of an appropriate material such as a metal or wood) produces a system with significantly higher strengths and extremely good toughness.
Further information
For further information please contact us.