PPG SigmaTherm 540

Reference 7564

Brand PPG

Search ID PPG3939

PPG SigmaTherm 540 is a one-component, heat-resistant, moisture-curing silicone aluminum coating for protecting steel surfaces in internal and external applications. Complies with NACE SP0198 for austenitic stainless steels and carbon steels under thermal insulation.

Dry heat resistance up to 600°C (1112°F)
No heat cure necessary between coats
Excellent resistance against weathering

Colour

Aluminium

Size

Finish

£164.89(incl. VAT)

£137.41(ex. VAT)

Quantity

Please choose your colour

Available for Delivery (See Delivery Options Below)

ColourPicker Explained

In general we sort colours for products into 2 main groups - ‘Ready Mixed’ and ‘Tinted’.
Tinted colours will always be more expensive than Ready Mixed colours as they need to be produced at the time of order using a tinting machine dispensing colourant into a base*.
During busy periods, this means that tinted colours could take longer, for example – a ready mixed colour ordered on a 3-5 day delivery might arrive within 3 days, however a tinted colour might take the full 5 days to arrive.

To find Ready Mixed colours, search "ready mixed" or select the Ready Mixed 'colour chart'. To see Tinted colours select a colour chart such as RAL, BS, NCS, etc. or search for a colour/hue to see available or related options.

To ensure fair pricing, we split colours into ‘Price Bands’ to group together similar priced colours. If you wish to search for the cheapest tinted colours, always select Price Band 1.

We make every effort to list all available colours, however we also offer a colour match service which can be accessed by contacting our Technical Team on 0113 245 5450 (option 2) or emailing [email protected]

*Colours are sold in the nearest tin size but actual paint volume per tin may vary up to 10% depending on colour

Colour reproduction of the Products on the Site is limited by the technology used to deliver web pages and by the colour representation of Customer’s own monitor and computer set-up. We have made every effort to display as accurately as possible the colours of our Products but we cannot guarantee that the colour shown on Customer’s monitor’s display will accurately reflect the colour of the Product on delivery. We recommend that Customer first purchases the smallest Product available or access an industry standard colour chart in person (and not digitally) to ensure that the colour is acceptable for its purposes.

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Description

Principal Characteristics

Dry heat resistance up to 600°C (1112°F)
No heat cure necessary between coats
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

Product Data

Two-component, high-build, heat-resistant epoxy phenol novolac coating.

Epoxy coatings will chalk and fade upon exposure to sunlight, elevated temperatures, or chemical exposure. Discolouration and normal chalking does not impact performance. Light colours will darken over time. Some batch-to-batch variation in colour is to be expected. Colour matches are approximate.

Data for mixed product at 20°C (68°F)
Number of components	One
Mass density	1.1 kg/l (9.2 lb/US gal)
Volume solids	45 ± 2%
VOC (Supplied)	Directive 1999/13/EC, SED: max. 412.0 g/kg
VOC (Supplied)	UK PG 6/23(92) Appendix 3: max. 498.0 g/l (approx. 4.2 lb/US gal)
Temperature resistance (Continuous)	To 600°C (1110°F)
Recommended dry film thickness	25 µm (1.0 mils)
Theoretical spreading rate	18.0 m²/l for 25 µm (722 ft²/US gal for 1.0 mils)
Dry to touch	45 minutes
Overcoating Interval	Minimum: 16 hours
Shelf life	At least 9 months when stored cool and dry

Notes:

Refer below for more details on spreading rate and film thickness, overcoating intervals and curing times

Surface Preparation

Recommended Substrate Conditions and Temperatures

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 & Application Conditions

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

System Specification

Suitable Primers :

PPG Ethyl Silicate Zinc Primers

Do not use HI-TEMP 1027 or 222G as primer.

Direct to stainless steel with suitable surface treatment.

Application

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

Spreading Rate and Film Thickness

Overcoating interval for DFT up to 25 µm (1.0 mils)

Overcoating with...	Interval	10°C (50°F)	20°C (68°F)	30°C (86°F)	40°C (104°F)
Itself	Minimum	24 hours	16 hours	12 hours	6 hours
Itself	Maximum	Unlimited	Unlimited	Unlimited	Unlimited

Notes:

Surface should be dry and free from any contamination

Curing time for DFT up to 25 µm (1.0 mils)

Substrate temperature	Dry to Touch	Dry to Handle
10°C (50°F)	1 hour	5 hours
20°C (68°F)	45 minutes	3.5 hours
30°C (86°F)	30 minutes	2 hours
40°C (104°F)	15 minutes	1 hour

Notes:

Adequate ventilation must be maintained during application and curing (please refer to information sheets information sheet 1433 and
Directives for Ventilation Practice (information sheet 1434)

Safety Precautions

For paint and recommended thinners, see information sheets information sheet 1430, information sheet 1431 and the relevant Material Safety Data Sheets in the attachments section above
This is a solvent-borne paint and care should be taken to avoid inhalation of spray mist or vapor, as well as contact between the wet paint and exposed skin or eyes

References

Conversion Tables (information sheet 1410)
Explanation to product data sheets (information sheet 1411)
Safety Indicators (information sheet 1430)
Safety in Confined Space and Health Safety, Explosion Hazard - Toxic Hazard (information sheet 1431)
Cleaning of Steel and Removal of Rust (information sheet 1490)
Specification for Mineral Abrasives (information sheet 1491)
Relative humidity - Substrate Temperature - Air Temperature (information sheet 1650)

Product Details

Reference 3939-514924

Data sheet

Manufacturer: PPG
Water / Solvent Based: Solvent
For Use On: Carbon steel, stainless steel
Application Method: Spray, brush, roller
Sheen: Eggshell
Colour: Standard / Ready Mixed
Single, Two or Three Pack: Single
Product Certifications: NACE SP0198
Pack Size: 5L, 20L
Base Type: Silicone aluminum
Mixing Ratio: -
Key Features: Dry heat resistance up to 600°C (1112°F), no heat cure necessary between coats, also suitable on top of zinc silicate primer
Touch Dry (at 20°C): 45 minutes
Dry to Handle (at 20°C): -
Dry to Recoat (at 20°C): Min. 16 hours
Fully Cured (at 20°C): -
Pot Life (at 20°C): -
Coverage: 18.0 m²/I for 25 µm (722 ft²/US gal for 1.0 mils)
Recommended Thinner/Cleaner: For cleaning only: PPG Thinner 21-06
Unit Contents: -
Compatible Primers: -
Compatible Topcoats: Itself
Max. Application Temperature: -
Min. Application Temperature: At least 3°C (5°F) above dew point
Density: 1.1 kg/I (9.2 lb/US gal)
Solids by Volume: 45 ±2%
Heat Resistance (up-to): 600°C
VOC: Directive 1999/13/EC, SED: max. 412.0 g/kg. UK PG 6/23(92) Appendix 3: max. 498 .0 g/1 (approx. 4.2 lb/US gal)
Shelf Life (Once Opened): At least 9 months when stored cool and dry
UN Number: UN1263
Base Type: Solvent-Based
Suitable For Use On: Stainless Steel
Suitable For Use On: Carbon Steel
Finish: Eggshell
Application Method: Brush
Application Method: Roller
Application Method: Spray
Product Usage Type: Topcoat
Product Range: SigmaTherm
Colour Family: Aluminium
Heat Resistance: Up To 600°C

Attachments

Download

Product Data Sheet

Download

Safety Data Sheet

Download

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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IMPORTANT SHIPPING & DELIVERY INFORMATION

PPG SigmaTherm 540 is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

PPG Thinner 21-06

This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.

£42.59 (incl. VAT)

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Surface Preparation Kits for Steel

These surface preparation kits for steel have been created to help provide customers with an easily accessible bundle of tools to aid in the preparation of steel surfaces in accordance with ISO 8501-1 (St2/3) and SSPC (SP 2/3). Please click here for important information about these kits. Kit Contents: SET 1 (Hand Tools) 1 x Rust-Oleum...

£26.45 (incl. VAT)

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In Stock and Available for Delivery

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PPG SigmaTherm 540

PPG SigmaTherm 540

Principal Characteristics

Product Data

Surface Preparation

System Specification

Application

Spreading Rate and Film Thickness

Safety Precautions

References

Data sheet

Questions

Question about the product

IMPORTANT SHIPPING & DELIVERY INFORMATION

PPG Thinner 21-06

Surface Preparation Kits for Steel