The glassy carbon sheet is a flat, hard material for work in which a glassy carbon surface is used directly as the electrode or substrate. Glassy carbon is gas-impermeable, has no open porosity, resists acids and bases very well and, unlike graphite, does not form ion intercalation compounds. This gives a clean and stable base for coating catalysts or thin films.

The sheets come in US or Japan-origin material, in 1, 2 and 3 mm thicknesses and in eight sizes from 10 × 10 mm to 25 × 25 mm. They work best with the dedicated glassy carbon electrode clamps. The material is hard but brittle, so do not force it when clamping.

Key Features

US or Japan-origin glassy carbon; 1, 2 and 3 mm thicknesses
Eight sizes: 10 × 10, 10 × 15, 10 × 20, 10 × 25, 15 × 15, 15 × 20, 20 × 20, 25 × 25 mm
Gas-impermeable structure with no open porosity; high chemical resistance to acids and bases
Unlike graphite it does not form intercalation compounds, giving a clean substrate for catalyst loading
Hard (about 230 to 340 HV) but brittle; tighten clamps gently
Can be re-polished with alumina and ultrasonically cleaned for reuse when fouled
Best used with the dedicated electrode clamps; custom sizes made on request

Technical Specifications

Material	Glassy carbon (US or Japan origin)
Thickness	1 mm, 2 mm, 3 mm
Sizes (width × length)	10 × 10, 10 × 15, 10 × 20, 10 × 25, 15 × 15, 15 × 20, 20 × 20, 25 × 25 mm
Model code	GC[width][length]-[thickness]; e.g. GC1520-2 = 15 × 20 × 2 mm
Density (typical)	About 1.42-1.54 g/cm³ (depends on type)
Hardness (typical)	About 230-340 HV (depends on type)
Electrical resistivity (typical)	About 45-50 µΩ·m
Porosity	No open porosity; gas-impermeable
Temperature limit (typical)	About 500-600 °C in air; much higher in vacuum/inert atmosphere depending on type
Recommended connection	Dedicated glassy carbon sheet electrode clamp
Custom production	On request

Available Options

Size and Thickness	Description
GC1010-1 (10 × 10 × 1 mm)	10 × 10 × 1 mm (width × length × thickness)
GC1010-2 (10 × 10 × 2 mm)	10 × 10 × 2 mm (width × length × thickness)
GC1010-3 (10 × 10 × 3 mm)	10 × 10 × 3 mm (width × length × thickness)
GC1015-1 (10 × 15 × 1 mm)	10 × 15 × 1 mm (width × length × thickness)
GC1015-2 (10 × 15 × 2 mm)	10 × 15 × 2 mm (width × length × thickness)
GC1015-3 (10 × 15 × 3 mm)	10 × 15 × 3 mm (width × length × thickness)
GC1020-1 (10 × 20 × 1 mm)	10 × 20 × 1 mm (width × length × thickness)
GC1020-2 (10 × 20 × 2 mm)	10 × 20 × 2 mm (width × length × thickness)
GC1020-3 (10 × 20 × 3 mm)	10 × 20 × 3 mm (width × length × thickness)
GC1025-1 (10 × 25 × 1 mm)	10 × 25 × 1 mm (width × length × thickness)
GC1025-2 (10 × 25 × 2 mm)	10 × 25 × 2 mm (width × length × thickness)
GC1025-3 (10 × 25 × 3 mm)	10 × 25 × 3 mm (width × length × thickness)
GC1515-1 (15 × 15 × 1 mm)	15 × 15 × 1 mm (width × length × thickness)
GC1515-2 (15 × 15 × 2 mm)	15 × 15 × 2 mm (width × length × thickness)
GC1515-3 (15 × 15 × 3 mm)	15 × 15 × 3 mm (width × length × thickness)
GC1520-1 (15 × 20 × 1 mm)	15 × 20 × 1 mm (width × length × thickness)
GC1520-2 (15 × 20 × 2 mm)	15 × 20 × 2 mm (width × length × thickness)
GC1520-3 (15 × 20 × 3 mm)	15 × 20 × 3 mm (width × length × thickness)
GC2020-1 (20 × 20 × 1 mm)	20 × 20 × 1 mm (width × length × thickness)
GC2020-2 (20 × 20 × 2 mm)	20 × 20 × 2 mm (width × length × thickness)
GC2020-3 (20 × 20 × 3 mm)	20 × 20 × 3 mm (width × length × thickness)
GC2525-1 (25 × 25 × 1 mm)	25 × 25 × 1 mm (width × length × thickness)
GC2525-2 (25 × 25 × 2 mm)	25 × 25 × 2 mm (width × length × thickness)
GC2525-3 (25 × 25 × 3 mm)	25 × 25 × 3 mm (width × length × thickness)