Carbon Insulation Boards

Carbon Insulation Boards, manufactured from rigidized pan felt, are used as refractory insulation for vacuum or protective atmosphere process furnaces. Material is pre-fired to 2192°F (1200°C) to promote higher purity, reduced ash content, and consistent performance. Ash purification services to ≤ 10ppm available. The rigid insulation boards can be easily cut or machined to custom sizes and used in both square and round hot zones. Boards manufactured from pan have better oxidation resistance and lower surface area due to its larger courser fibers in comparison to graphite insulation boards manufactured from rayon.

Materials such as Graphite Foil, Carbon Fiber Composite (CFC), and GraphiSeal can be used to enhance the perforamnce of our carbon boards. Foil and CFC can be used on exterior surface(s) or layered internally.

• Graphite foil
  • Dust generation prevention
  • Surface protection
  • Low gas-permeability
  • Increase radiant heat retention while reducing issues with furnace contaminant containment
  • Decreases pump downtimes and increases longevity of the insulation
• Carbon Fiber Composite (CFC)
  • Dust generation prevention
  • High strength and surface protection
  • Promotes excellent durability, impact, & wear resistance
• GraphiSeal Coating
  • Reduce porosity and dusting
  • Improve oxidation resistance
  • Surface(s) and/or edge(s) can be sealed with specified number of coats
  • Material can be mixed with Silicon Carbide powder to produce an anti-eutectic coating

Properties	Units	Carbon Insulation Boards (Pan)
Density	g/cm3	0.18
Carbon Content	%	≥ 95
Specific Resistance	ohm.cm	0.18 - 0.22
Ash Content	ppm	≤ 500
Ash Content Purified	ppm	≤ 10
Temperature Rating1	℉| ℃	5432 | 3000
Pre-fire temp	℉| ℃	2192 | 1200
Standard Size Board	inches	40" x 60"
Max Size Board	inches	60" x 60"
Max Thickness	inches	≤ 20"
Alternate Sizing & Purities	Standard | Metric	Contact us
Notes:	1Temp rating in vacuum or inert atmosphere

 Technical Data Sheet
 Safety Data Sheet