E Needled Fiberglass

Home » Products » Insulation Materials » E Needled Fiberglass

We use Lewco Mat High Temperature Needled Insulation Felts

Lewco Sil Mat insulation – 98% Silica Fiber to 1800F

Lewco Sil Mat insulation is manufactured using 98% pure textile grade silica fiber needled together into blanket/felt form. Lewco Sil Mat base fiber is made through a hot extrusion process yielding 6-11micron, non-respirable fiber. This fiber is then processed to maximize thermal efficiency. Lewco Sil Mat is INCOMBUSTIBLE, ASBESTOS FREE, NONRESPIRABLE, and contains no ORGANIC, or RESINOUS BINDERS. Typical applications include engine exhaust system insulation, hot industrial equipment insulation, and many others. Maximum temperature – 1800°F

Fiberglass – 100% E Glass Fiber to 1200F

Lewco Glass Mat is composed of 100% select-grade type “E” glass fibers needled together into mat form. It is INCOMBUSTIBLE, ASBESTOS FREE, and contains NO RESINOUS OR INORGANIC BINDERS. Lewco Glass Mat can be used on equipment operating at temperatures to 1200°F and will not deteriorate or shake apart in vibrating applications. Comforms to Mil. Spec. Mil-I-16411, Mil-I- 24244, ASTM E-84. Smoke -O, Flame -O NRC-1.36

Silica Typical Properties

Melting Point 3000°F
Continuous Temperature  1800°F
Shrinkage <7% @ continuous @ 1800°F
Thickness  1/4”, 1/2” & 1”
Roll Width  36”
Roll Length  1/4”x 100 ft., 1/2” x 50 1” x 25 ft.
Density 1/4” – 8#, 1/2” -9#, 1”-10#

E Glass Typical Properties

Melting Point  1523°F
Maximum Temperature 1200°F
Thickness 1/8”, 1/4”, 1/2” & 1”
Roll Width  30” and 60”
Roll Length Various lengths available
Density  6-7#/cu. ft., 9-11#/cu. ft.

Thermal Conductivity (K-Factor) BTU, in./ft2, HR., °F   ASTMC-177

Temp E-Glass 6#density E-Glass 10#density Silica 10#density
300°F 0.292  0.350
500°F  0.350 0.480
700°F  0.445 0.640
900°F 0.780 0.855
1200°F 1.115
1500°F 1.425
1800°F  1.820

Testing:

  • Flame Spread Index = 0
  • Smoke Developed Index = 0
  • Combustibility: USCG Subpoint: 164.109 & 164.009
  • Corrosiveness: NRC 1.36, Mil 1. 24244
  • ASTM-E84-95 Standard Test Method for SURFACE BURNING CHARACTERISTICS OF BUILDING MATERIALS (ANSI 2.5, NFPA 255, UBC 8-1, UL 723)