Fused Silica Powder for Refractory Gunning Mixes
Fused silica powder for refractory gunning mix trials where phase identity, particle-size control and process compatibility must be evaluated together. Confirm grade-specific chemistry, PSD, moisture and application fit against the customer’s mix and spraying conditions.
Specifications
- Mesh Size
- 120mesh,200mesh,325mesh,600mesh,800mesh,1250mesh,2000mesh,2500mesh,3000mesh,5000mesh
- Particle Size
- 3-5mm,1-3mm,1-0.5mm,0.5-0.2mm,0.1-0.2mm,0.1-0mm(120mesh),0.075mm(200mesh)
- SiO₂ Content
- 99.8-99.99%
- Bulk Density
- 1.0~1.5 g/cm³
- Specific Gravity
- 2.20 g/cm³
- Thermal Expansion
- 0.5*10⁻⁶
- Moh's hardness
- 7
Refractory Gunning Mix Grade
Fused Silica Feedstock for Gunning Mix Development
Fused silica powder for refractory gunning mix trials where phase identity, particle-size control and process compatibility must be evaluated together. Select the grade against the customer’s mix design, spraying equipment and service conditions.
Product Overview
Fused silica is a silica raw material with a fused structure that can be considered in refractory formulations requiring controlled thermal response. In a gunning mix, the powder does not determine performance by itself. Rebound, adhesion, build rate, dusting, drying and hot-face behavior depend on the complete recipe and application window.
What to Confirm Before a Gunning Trial
| Variable | Why it matters | Buyer confirmation |
|---|---|---|
| Particle size | Influences packing, conveying and the balance between fine material and coarse aggregate. | Specify mesh or PSD, top-cut and screen-residue method. |
| Moisture | Can affect flow, feed consistency, dust and the water balance at the nozzle. | Confirm the current lot result and storage conditions. |
| Mix chemistry | Binder, cement, additives and aggregates determine green strength and hot performance. | Provide the complete recipe or the relevant compatibility limits. |
| Spraying conditions | Air pressure, liquid addition, nozzle angle and stand-off influence rebound and adhesion. | Record equipment settings and substrate preparation during trials. |
Material Identity and Application Boundaries
This product is fused silica powder. It must not be confused with natural ground quartz powder, cristobalite, quartz sand, precipitated silica, fumed silica or surface-treated hydrophobic silica. Those materials have different phase identity, morphology and application behavior.
Related Changtong Materials
For a fine reference cut, review Fused Silica Powder 325 Mesh. For castable development, see Fused Silica Powder for Refractory Castables. Customers comparing a granular feedstock can review Fused Quartz Sand for Electrical Insulation and Refractories.
Frequently Asked Questions
Request a Fused Silica Gunning Mix Quote
Send your mix application, PSD requirement, chemistry limits, trial quantity, packaging needs and spraying conditions.
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