LyTherm® Grade 550-L Utility Grade Paper

 Grade 550-L is recommended for continuous use at temperatures up to 2300°F (1260°C) in applications where insulating efficiencies are not critical. Typical applications include refractory linings and expansion joints.
550-LJ
Tensile Strength - gms/inch
Machine Direction
5800
Cross Direction
5000
Mullen Burst - lbs/in2 (kg/cm2)
22 (1.55)
Thickness Specifications:
Nominal
1/8"
(3.20mm)
Uncompressed (in. @ 4psf)
0.160

 

LyTherm® Grade 970-L Commercial Grade Paper

  Grade 970-L is recommended for continuous use at temperatures up to 2300°F (1260°C) in applications where insulating efficiencies are critical. Typical applications include parting plane in refractory linings, combustion chamber lines, thermal and electrical insulation and kiln car deck covering.
550-LJ
Tensile Strength - gms/inch
Machine Direction
6000
Cross Direction
5200
Mullen Burst - lbs/in2 (kg/cm2)
24 (1.69)
Thickness Specifications:
Nominal
1/8"
(3.20mm)
Uncompressed (in. @ 4psf)
1.070

 

LyTherm® Grade 1530-L & 1535-L

  Characteristics of these Premimum Grade papers include extremely low thermal conductivity and a dust-free surface. Applications include high termperature gaskets, hot top linings and thermal and electrical insulation.
Melting Point
 3200°F (1760°C)
Maximum Use Termperature
 2300°F (1260°C)
Density lbs/ft3 (kg/m3)
6-9 (96-144)
Dielectric Strengths (Volts/mil)
55

 

LyTherm® Rollboard Paper

  LyTherm Rollboard Paper is a lightweight refractory material recommended for continuous use at temperatures up to 2300°F (1260°C). Characteristics include low shrinkage, good handling strength and low thermal conductivity.
1/16"
1/10"
1/8"
Tensile Strength - gms/inch
Machine Direction
2700
3500
4000
Cross Direction
2500
3100
4000
Thickness Specifications:
Nominal
1/16"
1/10"
4000
(1.60mm)
(2.54mm)
(3.20mm)
Uncompressed (in. @ 4psf)
0.070
0.100
0.125
Melting Point
 3200°F (1760°C)
Maximum Use Termperature
 2300°F (1260°C)
Density lbs/ft3 (kg/m3)
6-8 (96-128)