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Technical Documentation

Technical Data Sheet

C-Glass Flake Grades: C-28 · C-90 · C-150 · C-400  ·  Surface Treatments: N · V · E

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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.

C-28
Coarse / Bulk Fill
D50600 μm
Bulk density0.2 g/cc
TreatmentsN · V · E
C-90
Mid-Range / Spray
D50160 μm
Bulk density0.4 g/cc
TreatmentsN · V · E
C-150
Smooth / Medium
D50140 μm
Bulk density0.5 g/cc
TreatmentsN · V · E
C-400
Ultra-Fine / Pigment
D5015 μm
Bulk density0.75 g/cc
TreatmentsN · V · E

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:

OxideTypical Content
SiO₂65 ± 1 %
CaO14 ± 1 %
Al₂O₃4 ± 1 %
Na₂O8 ± 1 %
MgO3 ± 1 %
K₂O1 ± 0.5 %
OthersBalance

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.

Paper Bag
20 / 25 kg
Moisture-proof, heat-sealed
80 × 50 × 15 cm
Pallet Box
Bulk Shipment
Polythene-wrapped, banded
123 × 113 × 135 cm
20 kg moisture-proof paper bag
Standard moisture-proof paper bag (20/25 kg)
Palletised load on pallet box
Palletised bulk shipment with 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-28
Major North Sea operator  ·  Marine
DETAILS ↓

Applied C-28N glass flakes in a 2-coat epoxy system to a 280,000 DWT FPSO hull. After 7 years of continuous service in the North Sea, annual surveys confirmed zero holiday formation and no measurable mill-scale disbondment.

7-year service life with zero holiday formation

Desalination Plant Pipe Lining

C-90
Middle East water authority  ·  Water Treatment
DETAILS ↓

C-90V glass flakes (vinyl-ester surface treatment) were used to line 18 km of seawater intake pipelines. Independent testing after 5 years showed corrosion under film (CUF) rate 10× lower than conventional epoxy controls.

10× lower CUF vs conventional epoxy

Petrochemical Tank Immersion

C-150
Tier-1 EPC contractor, Singapore  ·  Oil & Gas
DETAILS ↓

Large crude oil storage tanks specified C-150E (epoxy-compatible) for internal lining. The smooth particle distribution enabled high build (1200 μm DFT) without film cracking, maintaining barrier performance in continuous immersion.

High-build 1200 μm DFT without film cracking

Cable-Stayed Bridge Deck Coating

C-400
National Highways Authority, Southeast Asia  ·  Infrastructure
DETAILS ↓

Ultra-fine C-400N flakes were incorporated into a high-gloss urethane topcoat for a landmark bridge deck. The micronised grade allowed spray application at 75 μm DFT while delivering class-leading moisture vapour transmission resistance.

Spray-grade at 75 μm DFT with superior MVT resistance

5. Document Downloads

All documents are available free of charge. For batch-specific Certificates of Analysis, please contact us with your order reference number.

PDF340 KB

Technical Data Sheet (TDS)

Full specification sheet for all grades including chemical composition, PSD, and application guidance.

↓ Download
PDF195 KB

Safety Data Sheet (SDS / GHS MSDS)

GHS-compliant safety data sheet — regulatory compliance for all markets.

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PDFPer batch

Certificate of Analysis (COA)

Batch-specific COA issued with every shipment confirming grade parameters.

↓ Download
Need more information?

Our technical team can provide customised SEM data, application-specific recommendations, and batch COA documents.

Contact Technical Team →