5058 Silver Mica

5058 Silver Mica is a PTFE coated glass fibre product with a high PTFE content. Mainly used as a premium grade baking sheet, 5058 Silver Mica is often seen as a robust and aesthetically pleasing alternative in the industrial food sector offering excellent release as well as superior value and performance.

5058 Silver Mica
5058 Silver Mica

Specifications

Key technical specifications for 5058 Silver Mica PTFE coated glass fabric are summarised below.
Minimum Operating Temperature
-73°C
Maximum Operating Temperature
260°C
Food Grade
Yes
Substrate Type
Glass
Nominal Thickness
5 Thou (125 µm)
Formats Available
Roll

5058 Silver Mica is a PTFE-coated glass fabric that combines the release and chemical resistance of PTFE with the thermal stability of a glass fibre substrate and a distinctive silver mica surface. This material operates across a continuous temperature range from -73°C to 260°C, offering durable non-stick performance and good dielectric properties.

Dotmar supplies 5058 Silver Mica in standard roll widths of 1000 mm and 1080 mm, with a typical thickness of 125 µm. The product is available in 30 m lengths as standard, with other lengths available on request, providing flexibility for custom fabrication and conversion.

Choosing this material from Dotmar ensures access to technical expertise in engineering plastics, reliable stock availability, and support for converting the roll goods into finished components such as belts, liners, and insulators.

Key Features

  • Continuous operating temperature from -73°C to 260°C
  • Glass fibre substrate for dimensional stability and high tensile strength
  • PTFE coating with a silver mica surface for enhanced release and thermal reflectivity
  • Thickness of 5 thou (125 µm)
  • Supplied in rolls 1000 mm or 1080 mm wide x 30 m long
  • Other roll lengths available on request

5058 Silver Mica is used in industrial applications that require a non-stick, heat-resistant, and electrically insulating surface. Typical uses include heat-sealing release sheets, electrical insulation, gaskets and expansion joints, conveyor belts in food processing and packaging, and as a liner for composite curing. Its broad temperature range makes it suitable for cryogenic and high-temperature processes.

Sizes Available

Rolls : 1000mm/1080mm wide x 30m long (other lengths on request).