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Power-teK® WM 640/660/680/700 GGN
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Power-teK®  WM 640 / 660 / 680 / 700 GGN is a Rock Mineral Wool mat that is supplied with a galvanised-steel wire mesh and galvanised-steel stitching wire on one side (GGN), with max service temperature from 640 to 700 °C, depending on density.

Knauf Insulation Power-teK®  WM  640 / 660 / 680 / 700 GGN is produced with ECOSE® Technology, a patented binder system, based entirely on renewable raw materials.

APPLICATION

  • Pipe insulation
  • Pipe insulation elbows
  • Furnaces & other equipment
  • Tank walls & heat storage
  • Boilers

The product is recommended for thermal, fire and sound insulation of the defined applications within technical insulation where:

  • a high service temperature is required
  • flexible insulation is needed.

Product is available in 500 or 1000 mm width.

Remark on certificates:

  • EPD valid for WM 640 and WM 660.
  • Keymark E valid for WM 640 and WM 660. 
  • ASTM  Type II C 592 valid for WM 640.
  • ASTM  Type III C 592 valid for WM 660 and WM 680.
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CE
RAL
EUCEB
Eurofins  GOLD Indoor Air Comfort
ASTM TYPE III C592
Keymark
Material Melting Point
EPD
Power-teK® WM 640/660/680/700 GGN
Description & Details
Documents

Description & Details

Power-teK®  WM 640 / 660 / 680 / 700 GGN is a Rock Mineral Wool mat that is supplied with a galvanised-steel wire mesh and galvanised-steel stitching wire on one side (GGN), with max service temperature from 640 to 700 °C, depending on density.

Knauf Insulation Power-teK®  WM  640 / 660 / 680 / 700 GGN is produced with ECOSE® Technology, a patented binder system, based entirely on renewable raw materials.

APPLICATION

  • Pipe insulation
  • Pipe insulation elbows
  • Furnaces & other equipment
  • Tank walls & heat storage
  • Boilers

The product is recommended for thermal, fire and sound insulation of the defined applications within technical insulation where:

  • a high service temperature is required
  • flexible insulation is needed.

Product is available in 500 or 1000 mm width.

Remark on certificates:

  • EPD valid for WM 640 and WM 660.
  • Keymark E valid for WM 640 and WM 660. 
  • ASTM  Type II C 592 valid for WM 640.
  • ASTM  Type III C 592 valid for WM 660 and WM 680.

THERMAL CONDUCTIVITY CALCULATOR

Downloads

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Technical Data Sheets
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DoP Power-teK WM 620 GGN/GSN/SSN/GGA/GSA/SSA/GGV
pdf/21 Nov 2025/514.9 KB
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ASTM Certificate Power-teK WM 660
pdf/9 Mar 2021/1.2 MB
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ASTM Technical data sheet KI_TS Power-teK WM 680 12 2025
pdf/21 Dec 2025/415.9 KB
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ASTM Technical data sheet KI_TS Power-teK WM 660 12 2025
pdf/21 Dec 2025/407.2 KB
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ASTM Technical data sheet KI_TS Power-teK WM 640 12 2025
pdf/21 Dec 2025/406.4 KB
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ASTM Certificate Power-teK WM 700
pdf/4 Dec 2025/953.8 KB
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KITS_EPD Power-teK WM 640 GGN_GSN_SSN
pdf/25 Sep 2025/951.2 KB
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Packaging specifications Power-teK WM 640_660_680_700
pdf/15 Sep 2025/33.4 KB
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DoP Power-teK WM 700 GGN/GSN/SSN/GGA/GSA/SSA
pdf/7 Jan 2026/488.7 KB
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KITS_EPD Power-teK WM 660 GGN
pdf/5 Jul 2021/843.2 KB
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Technical data sheet Power-teK WM 620_640_660_680_700 GGN
pdf/4 Dec 2025/302.6 KB
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Specification text Power-teK WM 620-640-660-680 GGN_EN
docx/3 May 2023/28.4 KB
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KI TS Power-teK brochure__Power of insulation in industry _EN
pdf/6 May 2025/1.5 MB
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ASTM Certificate Power-teK WM 680
png/9 Mar 2021/59.4 KB
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ASTM Certificate Power-teK WM 640
png/9 Mar 2021/60.8 KB
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DoP Power-teK WM 640 GGN/GSN/SSN/GGA/GSA/SSA/GGV
pdf/21 Nov 2025/514.9 KB
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Power-teK WM 660 GGN / incombustibility (IMS)
pdf/9 Mar 2021/1.7 MB
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Power-teK WM 660 GGN / thermal conductivity (IMS)
pdf/9 Mar 2021/1.1 MB
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Power-teK WM 640 GGN / incombustibility (IMS)
pdf/9 Mar 2021/1.8 MB
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Power-teK WM 640 GGN / thermal conductivity (IMS)
pdf/9 Mar 2021/1.1 MB
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Spec. text Power-teK WM 660 GGN
docx/1 Jun 2023/20.3 KB
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Spec. text Power-teK WM 640 GGN
docx/1 Jun 2023/20.3 KB
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ASTM Declaration_ overview
pdf/8 Dec 2025/155.8 KB
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Spec. text Power-teK WM 680 GGN
docx/1 Jun 2023/20.2 KB
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Power-teK® Wired Mats Insulation power for energy efficiency and safety_brochure
pdf/23 Mar 2020/679.3 KB
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Power-teK® PB Sys WM1 Large pipe insulation without metal sub construction_ brochure
pdf/23 Mar 2020/345.4 KB
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Knauf Insulation TS Product catalogue _EN 2025
pdf/10 Oct 2025/8.2 MB
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DoP Power-teK WM 680 GGN/GSN/SSN/GGA/GSA/SSA/GGV
pdf/21 Nov 2025/489.0 KB
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DoP Power-teK WM 660 GGN/GSN/SSN/GGA/GSA/SSA/GGV
pdf/21 Nov 2025/555.5 KB
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ASTM Technical data sheet KI_TS Power-teK WM 700 12 2025
pdf/21 Dec 2025/397.1 KB
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Technical data

Attribute nameSymbolValueUnitNorm
Thermal conductivity (50ºC)0,040W/(mK)
Reaction to fireA1
Youtube video URL 1https://youtu.be/c81KLlY3tC0
Maximum service temperature640-700°C
Apparent density80-140kg/m3
Product typeWired mat
Insulation solution for:Industry