High Temperature Insulation



Please note that we can also offer Cemtherm
as an alternative to Sindanyo for many applications. 


Sindanyo® has been developed to provide outstanding service in demanding thermal and electrical applications. It is manufactured from a mixture of cement and fibres. There are two grades available. Sindanyo® L21 is primarily used as an electrical insulator. Sindanyo® H91 is used more as a heat insulator.


Sindanyo® L21 up to +230°C.

Sindanyo® H91 up to +700°C.

Key features:

  • Strong and rigid.
  • High strength at higher temperatures.
  • Low thermal conductivity.
  • Excellent insulation properties.
  • Suitable for machined components.

Applications:  Rollers, pusher blocks, door insulation, furnace insulation, exhaust systems, forging of ferrous and non-ferrous metals, press tools.


Sheet size (mm): 1245 x 940
Thickness (mm): 3, 6, 10, 12, 15, 19, 25, 32, 38, 50, 75

We offer a full Machining Service to suit your specific requirements.

Technical Specification:

L21 Sindanyo Technical Data Sheet (TDS)
Download PDF

H91 Sindanyo Technical Data Sheet (TDS) 
Download PDF

Sindanyo Material Safety Data Sheet (MSDS)
Download PDF

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