Silica

98% Silica Fiber to 1800°F

Lewco Sil Mat insulation is manufactured using 98% pure textile grade silica fiber needled together into a 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

 

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 100ft., 1/2" x 50 ft., 1" x 25 ft.

                                                                       Density             1/4" - 8#, 1/2"- 9#, 1"-10#

 

Fiberglass

100% E Glass Fiber to 1200°F

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

 

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

 

 

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)