PPG SigmaTherm 175 Heat Resistant Aluminium Finish

UN1263 (Class: 3, Pk Grp: III)
A heat resistant modified alkyd product that produces an aluminium finish, ideal for use on a variety of metal substrates exposed to a high level of heat.
Available in 5 Litres
£95.41 £79.51
In stock
Product Description

PPG SigmaTherm 175 is a heat resistant modified alkyd product that produces an aluminium finish, ideal for use on a variety of metal substrates exposed to a high level of heat.

Best Uses

PPG SigmaTherm 175 is named 175 because it resists heat of up to and including 175°C and offers high brilliancy in interior and sheltered exterior applications. SigmaTherm 175 is ideally suited for application to pipes, radiators and low heat engines to aid the protection of the surface and surrounding area.


SigmaTherm 175 should be applied using a spray gun to improve the appearance of the surface but can be applied using brush or roller for touch ups too. SigmaTherm 175 is dry to touch after just 3 hours at low temperatures and can be overcoated in 16-36 hours. Make sure you leave 3 full days for the product to cure at 20°C before you expose the surface to heat, this is vital in ensuring the product has adhered to the surface properly and will perform properly.

Surface and Environment

SigmaTherm 175 is a high performance product that provides surfaces with a high glossy finish to aid protection and offer a level of decoration with an aluminium effect. SigmaTherm 175 should ideally be used internally to offer heat resistance to appliances of up to 175°C.

Technical Details


  • Approved for MoD use


  • Heat resistant up to 175°C
  • High brilliancy
  • Spray application improves the appearance
  • A minimum drying time of 3 days at 20°C should be allowed before exposure to heat

Technical Info

Components: Two Components
Type: Heat Resistant
Finish: Gloss
Stock Colours: Aluminium RAL9006
Tintable: No
VOC Content: 417.0 g/l
Volume Solids: 47 +/- 2%
Suitable Substrates: Ideal for use on a variety of metal substrates
Application Method: Brush, Roller, Airless Spray or Air Spray
Theoretical Coverage: 18.8 sq m/l for 25 microns
Wet Film Thickness (WFT): -
Dry Film Thickness (DFT): 25 microns (1.0 mils) per coat
Induction Time: -
Pot Life: -
Touch Dry: 1 hour at 20°C
Overcoatable: After 16 hours at 20°C
Fully Cured: -
Cleaner / Thinner: If using an air spray: Thinner 20-05. For application by airless spray, brush or roller, no thinner should be added. To clean: Thinner 20-05  
Shelf Life: At least 24 months when stored cool and dry
Packaging: Available in 5 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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