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PPG - Sigmatherm 540 - Heat Resistance
  • PPG - Sigmatherm 540 - Heat Resistance

PPG - Sigmatherm 540 - Heat Resistance

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£123.41
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£148.09 Tax incl.

PPG - Sigmatherm 540 (previously Amercoat 878) is a one component heat resistant moisture curing silicone aluminium. Use this product for internal and external protection of steel surfaces that need resistance to extreme heat. It has dry heat resistance up to 600°C (1112°F).

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PPG - Sigmatherm 540 (previously Amercoat 878) is a one component heat resistant moisture curing silicone aluminium. Use this product for internal and external protection of steel surfaces that need resistance to extreme heat. It has dry heat resistance up to 600°C (1112°F).

Features

  • Dry heat resistance up to 600°C (1112°F)
  • No heat cure necessary between coats
  • To be used for the internal and external protection of steel surfaces
  • Excellent resistance against weathering
  • Also suitable on top of zinc silicate primer
  • A minimum drying time of 3 days at 20°C (68°F) should be allowed before exposure to heat

Recommended Substrate Conditions and Temperatures

Substrate conditions

  • Steel; blast cleaned to ISO Sa 2½ or SSPC-SP-10, blasting profile 25 – 50 µm (1.0 – 2.0 mils)
  • Suitable coating (zinc silicate primer) must be dry, free from any contamination and zinc salts
  • Stainless steel; degreased and sweep blast (SSPC SP-16) cleaned to roughness of 40 – 70 µm (1.5 – 2.8 mils) with nonferrous abrasive

Note: The maximum continuous dry heat temperature when power tool treated surface (ISO-St3) is 400°C

Substrate temperature and application conditions

  • Substrate temperature during application should be at least 3°C (5°F) above dew point

Instructions For Use

  • Power agitate to uniform consistency
  • Application with airless equipment is possible, but be careful not to apply more than specified thickness
  • When applying more than one coat, it is recommended that the total dry film thickness of SIGMATHERM 540 does not
    exceed 80 µm (3.1 mils)

Air spray

Recommended thinner

No thinner should be added

Nozzle orifice

1.5 – 2.0 mm (approx. 0.060 – 0.079 in)

Nozzle pressure

0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)

Brush/roller

  • For Roller application the best results will be obtained by using fine foam type rollers

Cleaning solvent

THINNER 21-06

PPG Paints
PPG-S54

Data sheet

Type
silicone aluminum
Size
5L & 20L
Colour
Aluminium
Finish
Eggshell
Coverage
18.0 m²/l for 25 µm (722 ft²/US gal for 1.0 mils
For Use On
Metal
Application Method
Brush, Roller & Spray

Specific References

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PPG - Sigmatherm 540 - Heat Resistance

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PPG - Sigmatherm 540 - Heat Resistance

PPG - Sigmatherm 540 - Heat Resistance

£123.41
Tax excluded
£148.09 Tax incl.