FIREPLACES AND CHIMNEYS / CHIMNEY BUILDING BOARDS

THERMAX® SN 500 Fireplace Enclosure
Large-format THERMAX® boards for building and coating fireplaces

THERMAX® SN 500 Fireplace Enclosure
Large-format THERMAX® boards for building and coating fireplaces

Two-in-One: THERMAX® as a construction and insulation material in one

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Fireplace building boards with thermal insulation included:
THERMAX® SN 500

THERMAX® SN 500 – the fireplace building board in THERMAX® quality – for simple, safe, fast and clean assembly of fireplace sheathings. THERMAX® SN 500 is non-flammable and resistant to high heat levels. Energy emitted by fireplace inserts is emitted as pleasant, even radiating heat via the THERMAX® boards. Convection heat in an oven can also be distributed into certain areas, in association with clever fireplace heathing architecture.

Regardless of firmness and stability, THERMAX® SN 500 possesses ideal thermal qualities: a high heating capacity combined with great thermal insulation qualities.

Watch this video to see how easy THERMAX® SN 500 is to treat.

THERMAX® SN 500 fireplace building boards at a glance:

  • Clean and easy machining and use, very little dust produced
  • Short installation times
  • by bonding and screwing
  • No pre-drilling
  • Lightweight, dimensionally and structurally stable
  • Self-supporting
  • Optimised thermal conductivity
  • Non-flammable A1
  • Natural product, material residues and off-cuts are 100% recyclable
  • Tried and tested in fire protection
  • for many years
  • Certified product
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Build your own dream fireplace with THERMAX® SN 500 fireplace building boards. Treat the boards with standard wood processing tools. The boards are glued with THERMAX® fire protection glue, and can also be fixed without pre-drilling.

Professionals across the globe have worked with THERMAX® fire protection products for many years. Naturally, we can provide all general construction licences.

Technical specifications

THERMAX® SN 500  
Classification temperature°C900
Densitykg/m3 | ±5 %520
Cold compressive strengthN/mm22.5
Modulus of ruptureN/mm21.5
Thermal conductivity 200 – 800 °C
W/mK0.2 – 0.3
Thermal expansion, linear (20 – 500 °C)%0.4
Specific heat capacitykJ/kg K1.15
Standard dimensions (in mm)
1200 x 800 x 30

We can provide special formats and thicknesses on request. We will be happy to make punched parts, milled parts or cuttings in accordance with your drawings. The classification temperature should not be conflated with the maximum use temperature – especially if physical conditions such as tensile or pressure loads play a part. Generally, lower temperatures should be used for high temperature insulation.

Engineering department enquiries