Cristobalite Filler for Radiant Ceramic Coatings in Thermal-Process Equipment
Cristobalite filler for radiant ceramic coating trials on thermal-process equipment, with a practical route to compare phase, PSD, coating rheology and thermal-cycle retention.
Specifications
- Mesh Size
- 200mesh,325mesh,M400,M600,M3000,M4000,M6000
- 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
- 99.3-99.7%
- Fe₂O₃
- <0.015%
- Specific Gravity
- 2.30 g/cm³
- Whiteness
- 90-98
- Moh's hardness
- 6.5
- Conversion-related parameter
- 80-95%
A focused filler option for engineers screening radiant ceramic coatings under repeated heat-up and cool-down cycles.
Product Overview
Cristobalite filler for radiant ceramic coating trials on thermal-process equipment, with a practical route to compare phase, PSD, coating rheology and thermal-cycle retention.
Material Identity and Grade Information
This is a cristobalite-series filler for high-temperature ceramic coating development. It is not a cool-roof pigment and should not inherit architectural coating data; evaluate phase stability, dispersion and coating adhesion in the actual hot-face system.
Properties / Specification
| Property | Guidance |
|---|---|
| Phase identity | Cristobalite; confirm phase by current XRD or supplier report. |
| Particle size | Grade-specific; select a PSD for coating build, sprayability and surface texture. |
| SiO₂ | Crystalline silica reference range 99.3–99.7%; confirm by current COA. |
| Whiteness / color | Grade-specific and process-dependent; confirm when optical appearance matters. |
| Thermal cycling | No universal cycle claim; qualify with the customer’s peak temperature and ramp rate. |
| Compatibility | Subject to customer trial with binder, dispersant and substrate. |
Values marked Grade-specific must be confirmed by the current TDS/COA. Use customer trial data for final acceptance.
Applications
Radiant kiln-wall coatings
Screen coating build and retention on kiln hot-face panels without claiming a universal emissivity value.
Thermal-processing fixtures
Compare surface wear, adhesion and cleanability on ceramic supports used around repeated firing cycles.
Infrared process-window studies
Use coupon testing to relate phase/PSD choices to optical and thermal response measured by the customer.
Grade Selection / Engineering Boundaries
Emissivity, adhesion and thermal-shock results are not intrinsic guarantees. Keep coating formulation, substrate, firing atmosphere and test temperature fixed when comparing grades.
Production, Testing and Quality Documents
- Confirm phase, PSD and chemistry on the current TDS/COA.
- Run coating viscosity, dry-film build and adhesion checks on representative coupons.
- Record thermal-cycle count, peak temperature and post-cycle surface condition.
Related Changtong Products
- High-whiteness cristobalite for cool-roof coating trials
- Cristobalite powder for enamel frits and ceramic glazes
- Fused silica powder for refractory castables
- Request a Quote
FAQ
Is this the same as the cool-roof grade?
No. This page targets thermal-process ceramic coatings; grade fit and optical data must be confirmed separately.
What makes the trial useful?
A fixed coupon protocol exposes dispersion, coating build, adhesion and thermal-cycle changes before scale-up.
Request a Quote
Please share your country, Phone/WhatsApp, target application, particle-size range, estimated volume and current TDS/COA requirements.
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