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Flexitallic Sigma 500 Gasket Material Sheet - PTFE and Glass Microspheres Filler
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Flexitallic Sigma 500 Gasket Material Sheet - PTFE and Glass Microspheres Filler
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Material: Flexitallic Sigma 500
Type: PTFE and Glass Microspheres Filler
Lead Time: 1 Week or less (Call for rush orders)
Sheet Size: Use Drop Downs Below to Select
Thickness: Use Drop Downs Below to Select
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Product Code: SIGMA500

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Description
 

Flexitallic Sigma 500 has enhanced compressibility for low bolt loads and improved flexibility over conventional calendared and graphite sheets. Applications include moderate concentration of acids & caustics, chlorine and hydrogen peroxide. It can also be used for all concentrations of sulfuric acid. The Sigma 500 is WRAS approved for hot and cold potable water services. The material is biaxially-oriented PTFE containing hollow glass microspheres and blue in color.

Flexitallic Sigma 500
Physical Properties
Color
Blue
Composition
Biaxially-oriented PTFE containing hollow glass microspheres
Service Temperature Maximum
500° F
Tensile Strength Cross Grain
1740psi
Tensile Strength With Grain
1940psi
Max Compressive Stress (DIN 28090-1)
195N/mm2
Compression Value Cold (DIN 28090-2)
8.5%
Recovery Cold (DIN 28090-2)
4%
Recovery Warm at 150 C (DIN 28090-2)
6.4%
Setting Value Warm at 150 C (DIN 28090-2)
42.3%
Initial Stress Minimum (DIN 28090-1)
8N/mm2
Max Compressive Stress at 200 C (DIN 28090-1)
70N/mm2
Dielectric Strength
6.1kv/mm
ASTM F104 Callout
F456110E11M5

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