Style 5490 SILICA-T SQ Compression Packing, Fiberglass, 0.625 Inch Square Cross-Section, 100.0 ft (on 25lb Reel) (5.19 Ft/Lb)

48999-FT40-100
Style 5490 SILICA-T SQ Compression Packing, Fiberglass, 0.625 Inch Square Cross-Section, 100.0 ft (on 25lb Reel) (5.19 Ft/Lb)
  • Material: Fiberglass
  • Cross Section Shape: Square
  • Package Quantity (imperial): 100.0 ft
  • Package Quantity (metric): 30.49 m
  • Cross Section Width Decimal (Inch): 0.625
  • Cross Section Width (mm): 15.88
  • Continuous Length: No
  • Cross Section Height Fraction (Inch): 5/8
  • Fixed package Quantity: Yes
  • Package Primary UOM: Feet
  • Package Qty Measurement: Length
  • Package Quantity: 100 ft / 30.479 m
  • Package Quantity Weight Imperial: 25
  • Package Quantity Weight Imperial Unit of Measure: No.
  • Package Quantity Weight Metric: 25
  • Package Quantity Weight Metric Unit of Measure: No.
  • Package Type: Reel
  • Weight To Length Conversion (m/kg): 3.49
  • Weight To Length Converstion (ft/lb): 5.19
  • Primary Dimensional Unit of Measure: Imperial
  • Cross Section Height (mm): 15.88
  • Cross Section Height Decimal (Inch): 0.625
  • Cross Section Width Fraction (Inch): 5/8

Garlock Style 5490 Silica-T Square-Braid Compression Packing provides reliable, high-temperature insulation performance for demanding industrial environments. Designed as a safer, less-respirable alternative to ceramic fiber packing, Style 5490 Silica-T offers exceptional flexibility, strength, and thermal stability up to 1850°F (1000°C). Its construction from high-quality amorphous silica filament ensures long-term reliability in oven, furnaces, autoclaves, and boilers where other materials fail.

Engineered for use in power generation, metal processing, and chemical industries, Style 5490 Silica-T provides insulation under extreme heat, aggressive chemicals, and fluctuating conditions. It protects adjacent components, while its softer, more flexible fibers resist breakage and minimize irritation during handling. 

For insulation applications up to 2000°F (1093°C), consider THERMO-CERAM Compression Packing, and for high-temperature valve-stem sealing applications, consider Style 9622, 9000-EVSP, or 9001-QUICKSET®.

  • Overview

Features and Benefits:

  • Rated for 1850°F (1000°C) service, providing a safer option than ceramic fiber in extreme-temperature door sealing applications.
  • Manufactured from high-quality amorphous silica filament, offering long-term thermal stability with low material weight loss at high temperatures.
  • Uses non-toxic, less-respirable, incombustible fibers, ensuring safer handling and reduced irritation compared to ceramic and glass fiber materials.
  • Provides low thermal conductivity, delivering better insulation and protecting surrounding components from heat.
  • Delivers very good chemical resistance, improving reliability and extending service life in a wide range of media.

Typical Applications:

  • Oven doors
  • Furnace doors
  • Autoclave doors
  • High-temperature valve stem insulation
  • Kilns
  • Heat-treating equipment
  • Incinerators
  • Power-gen boiler access points
  • Metalworking thermal processing equipment

Media Use:

  • Hot air
  • Steam
  • Water vapor
  • Mild acids
  • Mild alkalis
  • Combustion byproducts
  • Oxidizing environments

Industries Served:

  • Power Generation
  • Battery Manufacturing
  • Chemical Processing
  • Primary Metals