Bulk Silica / Silica Bulk Wool
Up to 1200°C
Main applications
bulk silica that fills every high-temperature joint
Key Features
High-temperature fill in loose fiber form
Silica bulk wool — fills gaps and joints of any shape freely, completing the insulation
Refractory filling to 1000°C
High-purity silica — continuous service to 1000°C as a refractory fill in extreme environments
Conforms to any shape
In bulk form it packs tightly into any space — handling complex curves and irregular joints perfectly
Lower biological hazard
Silica material — lower biological hazard than RCF, an advantage where hygiene matters
Efficient for large-volume filling
Supplied in boxes or bags — maximising efficiency on large filling jobs
Specifications
| Material | Bulk high-purity silica (SiO₂ 96%+) fiber |
| Service temperature | Up to 1200°C |
| Fiber diameter | Approx. 6–10 μm |
| Supply form | Bulk in boxes or bags |
| Bulk density | Approx. 50–100 kg/m³ (as packed) |
| Main applications | Filling high-temperature joints and expansion joints in refractory linings, repair filling |
Applications
Joint & gap filling
- •Refractory filling of expansion joints in furnaces and kilns
- •Filling joints between refractory brick and board
Refractory lining repair
- •Filling repairs on partially damaged refractory linings
- •Refractory filling of cracks and voids
Insulating packing
- •Insulating packing at penetrations through hot equipment
- •Insulation filling inside equipment
Forming raw material
- •Raw material for wet-formed shapes
- •Lightweight filler in refractory castables
Notes
- ※Adjusting packing density lets you tune insulation performance against resilience.
- ※A dust mask and ventilation are recommended during installation to control airborne fiber.