Technical Data Sheet
C-Glass Flake Grades: C-28 · C-90 · C-150 · C-400 · Surface Treatments: N · V · E
1. Particle Size Distribution
Four standard C-glass flake grades are available, covering a range from coarse bulk-fill to ultra-fine pigment applications. Particle size is measured by sieve analysis per ASTM E11 / ISO 3310-1. Values represent percentage mass retention on each sieve fraction.
2. Chemical Composition (C-Glass Standard)
All grades are produced from standard C-glass (chemical-resistant glass) composition, providing superior corrosion resistance compared to E-glass. The following are typical oxide composition values:
| Oxide | Typical Content |
|---|---|
| SiO₂ | 65 ± 1 % |
| CaO | 14 ± 1 % |
| Al₂O₃ | 4 ± 1 % |
| Na₂O | 8 ± 1 % |
| MgO | 3 ± 1 % |
| K₂O | 1 ± 0.5 % |
| Others | Balance |
Physical Properties: Mohs hardness 6–7; specific gravity 2.5–2.6 g/cm³; softening point ~750 °C; high chemical resistance to acids, alkalis, and salts.
3. Packaging & Dimensions
Glass Flake is supplied in moisture proof paper bags, each containing 20 or 25 kgs net weight. Furthermore, bulk shipments are further packed in pallet boxes and protected by polythene wrapping.


- MOQ: 1,000 kg (1 tonne) unless otherwise agreed in writing
- Shipment: FOB Tianjin (default) or CIF to worldwide ports
- Lead Time: 7–14 days from order confirmation
- Private Label: Custom bag printing available on request
4. Application — Success Stories
The following case studies demonstrate glass flake barrier performance across marine, industrial, and infrastructure sectors. Click any card to expand the full case description.
Offshore FPSO Hull Coating
C-28Desalination Plant Pipe Lining
C-90Petrochemical Tank Immersion
C-150Cable-Stayed Bridge Deck Coating
C-4005. Document Downloads
All documents are available free of charge. For batch-specific Certificates of Analysis, please contact us with your order reference number.
Technical Data Sheet (TDS)
Full specification sheet for all grades including chemical composition, PSD, and application guidance.
Safety Data Sheet (SDS / GHS MSDS)
GHS-compliant safety data sheet — regulatory compliance for all markets.
Certificate of Analysis (COA)
Batch-specific COA issued with every shipment confirming grade parameters.
Our technical team can provide customised SEM data, application-specific recommendations, and batch COA documents.
Contact Technical Team →