PPG SigmaTherm 230

7445

PPG SigmaTherm 230 is a two-component, high-build, heat-resistant epoxy phenol novolac coating that provides a corrosion resistant barrier on carbon steel and stainless steel under thermal insulation. Suitable as heat resistant system under insulation up to 230°C (450°F) as well as for use in cryogenic conditions.

  • Meets CS-1, 3 and 4 for carbon steels under thermal insulation according to NACE SP0198-10
  • Meets SS-1, 2 and 3 for stainless steels under thermal insulation according to NACE SP0198-10
  • No post-curing is required to obtain mechanical strength

Colour
Size
Finish
£318.50
VAT excluded

£382.20 Tax incl.
Quantity

Description

PPG SigmaTherm 230 is a two-component, high-build, heat-resistant epoxy phenol novolac coating that provides a corrosion resistant barrier on carbon steel and stainless steel under thermal insulation. Suitable as heat resistant system under insulation up to 230°C (450°F) as well as for use in cryogenic conditions.

Features & Benefits


  • Excellent protection and resistance against corrosion and severe chemicals
  • Excellent resistance to thermal shock during rapid wet & dry cycling
  • Meets CS-1, 3 and 4 for carbon steels under thermal insulation according to NACE SP0198-10
  • Meets SS-1, 2 and 3 for stainless steels under thermal insulation according to NACE SP0198-10
  • No post-curing is required to obtain mechanical strength
  • Can be applied on hot substrate up to 150°C (302°F); please contact our technical team for details

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 Two
Mass density 1.7 kg/l (14.2 lb/US gal)
Volume solids 68 ± 2%
VOC (Supplied) Directive 1999/13/EC, SED: max. 195.0 g/kg
max. 329.0 g/l (approx. 2.7 lb/US gal)
EPA Method 24: 310.0 g/ltr (2.6 lb/USgal)
Recommended dry film thickness 100 - 150 µm (4.0 - 6.0 mils)
Theoretical spreading rate 4.5 m²/l for 150 µm (182 ft²/US gal for 6.0 mils)
Dry to touch 3 hours
Overcoating Interval Minimum: 8 hours
Maximum: 14 days
Full cure after 3 days
Shelf life Base: at least 12 months when stored cool and dry
Hardener: at least 12 months when stored cool and dry

Notes:

  • Refer below for more details on spreading rate and film thickness, overcoating intervals and curing times
  • To avoid crack in elevated temperature, it is recommended that the total average dry film thickness not exceed 350 µm (14 mils) and locally 400 µm (16 mils)

Surface Preparation


Recommended Substrate Conditions and Temperatures

Substrate conditions

  • Steel - blast cleaned to ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
  • The substrate must be perfectly dry before and during application of SigmaTherm 230
  • Stainless steel; degrease with solvent and sweep blast, SSPC SP-16 with blasting profile 40 – 100 µm (1.5 – 4.0 mils)

 

Substrate Temperature & Application Conditions


  • Substrate temperature during application and curing should be above 5°C (41°F)
  • Substrate temperature during application and curing should be at least 3°C (5°F) above dew point

Application


Instructions for Use

Mixing ratio by volume: base to hardener 87:13

  • The temperature of the mixed base and hardener should preferably be above 15°C (59°F), otherwise extra thinner may be required to obtain application viscosity
  • Adding too much thinner results in reduced sag resistance
  • Thinner should be added after mixing the components

 

Induction Time


Allow induction time before use

Mixed Product Induction Time
Mixed Product Temperature Induction Time
5°C (41°F) 20 minutes
10°C (50°F) 15 minutes
15°C (59°F) 10 minutes

 

Air Spray


Recommended thinner

  • PPG Thinner 91-92 for ambient temperature; PPG Thinner 21-25 for application to hot surfaces

Volume of thinner

  • 5 - 10%, depending on required thickness and application conditions

Nozzle orifice

  • 2.0 mm (approx. 0.079 in)

Nozzle pressure

  • 0.3 MPa (approx. 3 Bar; 44 p.s.i.)

 

Airless Spray


Recommended thinner

  • PPG Thinner 91-92 for ambient temperature; PPG Thinner 21-25 for application to hot surfaces

Volume of thinner

  • 5 - 10%, depending on required thickness and application conditions

Nozzle orifice

  • Approx. 0.46 – 0.53 mm (0.018 – 0.021 in)

Nozzle pressure

  • 15.0 MPa (approx. 150 bar; 2176 p.s.i.)

 

Brush/roller


Recommended thinner

  • PPG Thinner 91-92

Volume of thinner

  • 0 – 5%

 

Cleaning Solvent




Spreading Rate and Film Thickness


Overcoating interval for DFT up to 150 µm (6.0 mils)


Overcoating with... Interval 5°C (41°F) 10°C (50°F) 15°C (59°F) 20°C (68°F) 30°C (86°F)
Itself Minimum 24 hours 20 hours 14 hours 8 hours 6 hours
Maximum 28 days 25 days 21 days 14 days 7 days

Notes:

  • Surface should be dry and free from any contamination

 

Curing time for DFT up to 150 μm (6.0 mils)


Substrate temperature Dry to Touch Dry to Handle Full Cure
5°C (41°F) 28 hours 60 hours 7 days
10°C (50°F) 12 hours 30 hours 5 days
15°C (59°F) 6 hours 15 hours 4 days
20°C (68°F) 3 hours 5 hours 3 days
30°C (86°F) 2 hours 4 hours 48 hours

Notes:

 

Pot Life (at application viscosity)


Mixed product temperature Pot life
5°C (41°F) 8 hours
10°C (50°F) 6 hours
15°C (59°F) 4 hours
20°C (68°F) 2 hours
30°C (86°F) 1 hour

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 vapour, as well as contact between the wet paint and exposed skin or eyes

References


It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details
7445

Data sheet

Manufacturer
PPG
Water / Solvent Based
Solvent
Water / Solvent Based
Solvent
For Use On
Carbon steel, stainless steel
Sheen
Gloss
Colour
Standard / Ready Mixed
Single, Two or Three Pack
Two-pack
Product Certifications
NACE SP0198-10,
Pack Size
20L
Parts
Two
Base Type
Epoxy phenol novolac
Mixing Ratio
87:13
Suitable Substrates
Steel
Key Features
Meets CS-1, 3 and 4 for carbon steels under thermal insulation according to NACE SP0198-10, excellent protection and resistance against corrosion and severe chemicals
Application
Spray, Brush, Roller
Touch Dry (at 20°C)
3 hours
Dry to Handle (at 20°C)
-
Dry to Recoat (at 20°C)
Minimum: 8 hours. Maximum: 14 days
Fully Cured (at 20°C)
3 days
Pot Life (at 20°C)
2 hours
Coverage
4.5 m²/I for 150 µm (182 ft²/US gal for 6.0 mils)
Recommended Thinner/Cleaner
PPG Thinner 90-53, PPG Thinner 91-92
Unit Contents
-
Compatible Primers
-
Compatible Topcoats
Itself
Max. Application Temperature
150°C (302°F)
Min. Application Temperature
5°C (41°F)
Density
1.7 kg/I (14.2 lb/US gal)
Solids by Volume
68 ±2%
Heat Resistance (up-to)
230°C (450°F)
VOC
Directive 1999/13/EC, SED: max. 195.0 g/kg max. 329.0 g/I (approx. 2.7 lb/US gal) EPA Method 24: 310.0 g/ltr (2.6 lb/USgal)
Shelf Life (Once Opened)
Base/Hardener: at least 12 months when stored cool and dry
UN Number
UN1263, UN3469
Attachments
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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