Standard or Crinckled graphite paper tape. Used primarily as an insulator and spacer between two pieces of glass tapered joints. Takes high temperatures and will not stick to the glass.

Width 25mm (1″)
Thicknedd 0,25mm (.01″)
Total lenght 15m (50ft)

Typical Properties
Temperature Use Range : -400° F to 975° F (-240° C to 525° C)
Bulk Density : 70 lb./ft3 (1.12 g/cc) 62.4 lb./ft3 (1.00 g/cc)
Ash Content : 1.8%
Carbon Content : 98.2%
Leachable Chloride : 10 ppm
Sulfur Content : 550 ppm
Oxidation Weight Loss : 3%
Compressibility at 5000 psi (35 MPa) load : 43% for 70 lb./ft3
Recovery after 5000 psi (35 MPa) load : 15% for 70 lb./ft3
Tensile Strength : 650psi for 70 lb./ft3