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PPG SigmaCover 456, a two-component, high-build, polyamide-cured recoatable epoxy coating available in 2,600+ colours, for steel and concrete structures exposed to atmospheric land or marine conditions, curing at temperatures down to -10°C (14°F). SigmaCover 456 can be recoated with various two-component and conventional coatings, even after long weathering periods.
- Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- A high relative humidity (maximum 95%) during application and curing does not influence the quality of the coating
- Good adhesion on most aged, sound alkyd, chlorinated rubber and epoxy coatings
- Tough, with long-term flexibility; resistant to water and splash of mild chemicals
- No induction time - 6 hours pot life - touch dry in 3 hours - fully cured after 7 days
- Easy application by air spray, brush or roller
- See below for more information on surface preparation, application details and curing times
Product customisation
Don't forget to save your customization to be able to add to cartPPG SigmaCover 456 is a two-component, high-build, polyamide-cured recoatable epoxy coating. The general-purpose epoxy buildcoat or finish is available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours and is used in protective coating systems for steel and concrete structures exposed to atmospheric land or marine conditions, curing at temperatures down to -10°C (14°F), and has good adhesion on most aged, sound alkyd, chlorinated rubber and epoxy coatings. SigmaCover 456 can be recoated with various two-component and conventional coatings, even after long weathering periods.
Features & Benefits
- Available in 350+ colours from RAL and BS
- General-purpose epoxy buildcoat or finish in protective coating systems, for steel and concrete structures exposed to atmospheric land or marine conditions
- Two-component, high-build, polyamide-cured recoatable epoxy coating
- Easy application, both by airless spray and brush
- Cures even at temperatures down to -10°C (14°F)
- A high relative humidity (maximum 95%) during application and curing does not influence the quality of the coating
- Good adhesion on most aged, sound alkyd, chlorinated rubber and epoxy coatings
- Can be recoated with various two-component and conventional coatings, even after long weathering periods
- Resistant to water and splash of mild chemicals
- Tough, with long-term flexibility
- No induction time
- 6 hours pot life
- Touch dry in 3 hours
- Fully cured after 7 days
- Can be applied by air spray, brush or roller
- See below for more information on surface preparation, application details and curing times
Reference | Colour | Size | Gloss Level |
---|---|---|---|
179078 | Black | 4 litres | Semi-Gloss |
179079 | Black | 20 litres | Semi-Gloss |
141370 | Persian Grey (BS 00A05) | 4 litres | Semi-Gloss |
141371 | Persian Grey (BS 00A05) | 20 litres | Semi-Gloss |
179072 | White | 4 litres | Semi-Gloss |
179073 | White | 20 litres | Semi-Gloss |
192454 | Full RAL & BS | 4 litres | Semi-Gloss |
192455 | Full RAL & BS | 20 litres | Semi-Gloss |
Product Data
Two-component, high-build, polyamide-cured recoatable epoxy coating
Data for mixed product at 20°C (68°F) | |
---|---|
Number of components | Two |
Mass density | 1.4 kg/l (11.7 lb/US gal) |
Volume solids | 65 ± 2% |
VOC (Supplied) | Directive 1999/13/EC, SED: max. 250.0 g/kg |
max. 344.0 g/l (approx. 2.9 lb/US gal) | |
Recommended dry film thickness | 75 - 150 µm (3.0 - 6.0 mils) depending on system |
Theoretical spreading rate | 6.5 m²/l for 100 µm (261 ft²/US gal for 4.0 mils) |
Dry to touch | 2 hours |
Overcoating Interval | Minimum: 3 hours |
Maximum: Unlimited | |
Full cure after | 4 days |
Shelf life | Base: at least 24 months when stored cool and dry |
Hardener: at least 24 months when stored cool and dry |
Notes:
- See below for more information on surface preparation, application details and curing times
Surface Preparation
Recommended Substrate Conditions and Temperatures
Substrate conditions
- Compatible previous coat must be dry and free from any contamination Substrate temperature
- Substrate temperature during application and curing down to -10°C (14°F) is acceptable; provided the substrate is free from ice and dry
- Substrate temperature during application and curing should be at least 3°C (5°F) above dew point
Substrate Temperature & Application Conditions
- Substrate temperature during application and curing down to -10°C (14°F) is acceptable; provided the substrate is free from ice and dry
- 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 82:18
- Adding too much thinner results in reduced sag resistance
- The temperature of the mixed base and hardener should be above 10°C (50°F), otherwise extra thinner may be required to obtain application viscosity
- Thinner should be added after mixing the components
Induction Time
None.
Pot life
- 5 hours at 20°C (68°F)
Refer below for more information
Air Spray
Recommended thinner
- THINNER 91-92
Volume of thinner
- 5 - 10%, depending on required thickness and application conditions
Nozzle orifice
- 2.0 – 3.0 mm (approx. 0.079 – 0.110 in)
Nozzle pressure
- 0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)
Airless spray
Recommended thinner
- THINNER 91-92
Volume of thinner
- 0 - 5%, depending on required thickness and application conditions
Nozzle orifice
- Approx. 0.48 – 0.58 mm (0.019 – 0.023 in)
Nozzle pressure
- 15.0 MPa (approx. 150 bar; 2176 p.s.i.)
Brush/roller
Recommended thinner
- THINNER 91-92
Volume of thinner
- 0 – 5%
Cleaning Solvent
Spreading Rate and Film Thickness
DFT | Theoretical spreading rate |
---|---|
75 µm (3.0 mils) | 8.7 m²/l (348 ft²/US gal) |
100 µm (4.0 mils) | 6.5 m²/l (261 ft²/US gal) |
150 µm (6.0 mils) | 4.3 m²/l (174 ft²/US gal) |
Note:
- Maximum DFT when brushing: 60 µm (2.4 mils)
Overcoating interval for DFT up to 150 µm (6.0 mils)
Overcoating with... | Interval | -5°C (23°F) | 5°C (41°F) | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
---|---|---|---|---|---|---|---|
PPG VIKOTE 46, SIGMADUR 550, SIGMADUR 520 and SIGMARINE 40 | Minimum | 3 days | 24 hours | 16 hours | 8 hours | 5 hours | 3 hours |
Maximum | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | |
SIGMACOVER 435 and SIGMACOVER 456 | Minimum | 36 hours | 10 hours | 4 hours | 3 hours | 2 hours | 2 hours |
Maximum | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | |
PPG VIKOTE 56 and SIGMARINE 48 | Minimum | 3 days | 24 hours | 16 hours | 8 hours | 5 hours | 3 hours |
Maximum | 17 days | 14 days | 10 days | 7 days | 4 days | 48 hours |
Notes:
- Surface should be dry and free from chalking and contamination
- SIGMACOVER 435 should not be overcoated with coal tar epoxy coatings
Curing time for DFT up to 150 µm (6.0 mils)
Substrate temperature | Dry to Handle | Full Cure |
---|---|---|
-10°C (14°F) | 24 hours - 48 hours | 20 days |
-5°C (23°F) | 24 hours - 30 hours | 14 days |
0°C (32°F) | 18 hours - 24 hours | 10 days |
5°C (41°F) | 18 hours | 8 days |
10°C (50°F) | 12 hours | 6 days |
15°C (59°F) | 8 hours | 5 days |
20°C (68°F) | 6 hours | 4 days |
30°C (86°F) | 4 hours | 3 days |
40°C (104°F) | 3 hours | 48 hours |
Notes:
- Adequate ventilation must be maintained during application and curing (please refer to information sheets 1433 and (1434)
- In exceptional cases SIGMACOVER 456 may be applied at lower substrate temperatures (down to -15°C (5°F)) provided that the surface is free from ice and other contamination. In such cases special care must be taken to avoid thick film application as this may lead to checking/crazing or solvent entrapment. It should be clear that application at lower temperatures will require additional thinning to obtain application viscosity, however this will affect the sag resistance of the applied coating and can induce solvent retention. Optimal curing and designed product properties will only be achieved when minimum required substrate temperature is reached
Pot Life (at application viscosity)
Mixed product temperature | Pot life |
---|---|
10°C (50°F) | 12 hours |
20°C (68°F) | 5 hours |
30°C (86°F) | 4 hours |
40°C (104°F) | 2 hours |
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
- 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)
- Safe Working in Confined Spaces (information sheet 1433)
- Directives for Ventilation Practice (information sheet 1434)
- Surface Preparation of Concrete Floors (Information Sheet 1496)
- Relative humidity - Substrate Temperature - Air Temperature (information sheet 1650)
Data sheet
- Manufacturer
- PPG
- For Use On
- Steel, Concrete
- Application Method
- Brush, Roller, Spray
- Sheen
- Semi Gloss
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 4L, 20L
- Parts
- Two
- Base Type
- Solvent-borne
- Solvent
- Epoxy
- Mixing Ratio
- 82:18
- Suitable Substrates
- Steel, concrete
- Key Features
- Cures at low temperatures, can be recoated even after long weathering periods
- Touch Dry (at 20°C)
- -
- Dry to Handle (at 20°C)
- 6 hours
- Dry to Recoat (at 20°C)
- 3 hours (see table)
- Fully Cured (at 20°C)
- 4 days
- Pot Life (at 20°C)
- 5 hours
- Coverage
- 6.5 m²/l for 100 µm
- Recommended Thinner/Cleaner
- THINNER 91-92/THINNER 90-53
- Unit Contents
- Base & hardener
- Compatible Primers
- -
- Compatible Topcoats
- -
- Max. Application Temperature
- -
- Min. Application Temperature
- -10°C (14°F)
- Density
- 1.4 kg/l (11.7 lb/US gal)
- Solids by Volume
- 65 ± 2%
- Heat Resistance (up-to)
- -
- VOC
- Directive 1999/13/EC, SED: max. 250.0 g/kg max. 344.0 g/l (approx. 2.9 lb/US gal)
- Shelf Life (from date of manufacture)
- 24 months (base & hardener)
- UN Number (Activator)
- UN3469S
- UN Number (Base)
- UN1263
- Base Type
- Solvent-Based
- Base Type
- Epoxy
- Suitable For Use On
- Concrete
- Suitable For Use On
- Steel
- Suitable For Use On
- Primed Surfaces
- Finish
- Semi-Gloss
- Application Method
- Roller
- Application Method
- Spray
- Application Method
- Brush
- Usages
- High Build
- Usages
- Flexible
- Usages
- Low Temperature
- Usages
- Atmospheric
- Usages
- Anti-Corrosive
- Usages
- Intermediate
- Product Usage Type
- Topcoat
- Product Usage Type
- Intermediate
- Product Range
- SigmaCover
- Colour Family
- Red
- Colour Family
- Brown
- Colour Family
- Pink
- Colour Family
- Orange
- Colour Family
- Purple
- Colour Family
- Yellow
- Colour Family
- Black
- Colour Family
- White
- Colour Family
- Neutral
- Colour Family
- Anthracite Grey
- Colour Family
- Cream
- Colour Family
- Grey
- Colour Family
- Green
- Colour Family
- Blue
- Dry to Recoat (@ 20-25°C)
- 3 hours
Questions
Question about the product
Paul on 2023-08-07 16:24:02 | Question:
Hi there, Would this product be suitable to apply to 22mm egger protect tongue and groove flooring boards? Kind Regards Paul |
Answer from Rawlins’ Technical Team:
From a practical point of view, this product wouldn't necessarily be recommended for use on floor-boards. However it shouldn't be an issue, providing it is thinned by around 15-20% with PPG Thinner 91-92 to ensure it soaks in and binds well to the substrate. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaCover 456 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 90-53
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.
PPG Thinner 91-92
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.
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...