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PPG SigmaCover 456 HS is two component high solids polyamide cured recoatable zinc phosphate epoxy primer/coating. This general-purpose epoxy primer/coating is available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours, for steel and concrete structures in atmospheric exposure that can be recoated with various two-component and conventional coatings, even after long weathering periods.
- Used on the arch on Wembley Stadium, London
- Cures at temperatures down to -5°C (23°F) and is free from lead- and chromate-containing pigments
- Excellent rust preventing properties in industrial or coastal atmospheres, with good adhesion to steel
- Tough, with long-term flexibility - easy application, both by airless spray and brush
- No induction time - 6 hours pot life - Touch dry in 3 hours - Fully cured after 7 days
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PPG SigmaCover 456 HS, a two component high solids polyamide cured recoatable zinc phosphate epoxy primer/coating. A general-purpose epoxy primer/coating for steel and concrete structures in atmospheric exposure that can be recoated with various two-component and conventional coatings, even after long weathering periods.
The primer/coating is free from lead- and chromate-containing pigments and has excellent rust preventing properties in industrial or coastal atmospheres, curing at temperatures down to -5°C (23°F).
Features & Benefits
- Used on the arch on Wembley Stadium, London
- Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- General-purpose epoxy primer/coating for steel and concrete structures in atmospheric exposure
- Can be recoated with various two-component and conventional coatings, even after long weathering periods
- Free from lead- and chromate-containing pigments
- Excellent rust preventing properties in industrial or coastal atmospheres
- Tough, with long-term flexibility
- Cures at temperatures down to -5°C (23°F)
- Good adhesion to steel
- Easy application, both by airless spray and brush
- No induction time
- 6 hours pot life
- Touch dry in 3 hours
- Fully cured after 7 days
- See below for more information on surface preparation, application details and curing times
| Reference | Colour | Size | Gloss Level |
|---|---|---|---|
| 215902 | Pure White (RAL 9010) | 20 litres | Eggshell |
| 192435 | Full RAL & BS | 4 litres | Eggshell |
| 192447 | Full RAL & BS | 20 litres | Eggshell |
Product Data
Two component high solids polyamide cured recoatable zinc phosphate epoxy primer/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 | 73 ± 2% |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 192.0 g/kg |
| UK PG 6/23(92) Appendix 3: max. 277.0 g/l (approx. 2.3 lb/US gal) | |
| Recommended dry film thickness | 75 - 150 µm (3.0 - 6.0 mils) depending on system |
| Theoretical spreading rate | 7.3 m²/l for 100 µm (293 ft²/US gal for 4.0 mils) |
| Dry to touch | 6 hours |
| Overcoating Interval | Minimum: 8 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
- Steel; blast cleaned to ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
- Previous coat must be sound, dry and free from any contamination
Substrate Temperature & Application Conditions
- Substrate temperature during application and curing down to -5°C (23°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 80:20 (4:1)
- The temperature of the paint 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
| Mixed Product Induction Time | |
|---|---|
| Mixed Product Temperature | Induction time |
| Above 10°C (50°F) | None |
| Below 10°C (50°F) | 20 minutes |
Pot life
- 4 hours at 20°C (68°F)
Refer below for more information
Air Spray
Recommended thinner
- THINNER 91-92
Volume of thinner
- 0 - 10%, depending on required thickness and application conditions
Nozzle orifice
- 1.5 – 3.0 mm (approx. 0.060 – 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 mm (0.019 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) | 9.7 m²/l (390 ft²/US gal) |
| 100 µm (4.0 mils) | 7.3 m²/l (293 ft²/US gal) |
| 150 µm (6.0 mils) | 4.9 m²/l (195 ft²/US gal) |
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) |
|---|---|---|---|---|---|---|---|
| Itself and various twopack epoxy coatings | Minimum | 48 hours | 20 hours | 16 hours | 8 hours | 6 hours | 4 hours |
| Maximum | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | |
| Polyurethane topcoat | Minimum | 4 days | 40 hours | 32 hours | 16 hours | 12 hours | 8 hours |
| Maximum | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited |
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 Handle | Full Cure |
|---|---|---|
| -5°C (23°F) | 24 hours - 48 hours | 14 days |
| 0°C (32°F) | 24 hours - 30 hours | 10 days |
| 5°C (41°F) | 18 hours - 24 hours | 8 days |
| 10°C (50°F) | 18 hours | 6 days |
| 15°C (59°F) | 12 hours | 5 days |
| 20°C (68°F) | 8 hours | 4 days |
| 30°C (86°F) | 6 hours | 3 days |
| 40°C (104°F) | 4 hours | 48 hours |
Notes:
- Adequate ventilation must be maintained during application and curing (please refer to information sheets 1433 and 1434)
Pot Life (at application viscosity)
| Mixed product temperature | Pot life |
|---|---|
| 10°C (50°F) | 8 hours |
| 15°C (59°F) | 5 hours |
| 20°C (68°F) | 4 hours |
| 30°C (86°F) | 2.5 hours |
| 35°C (95°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 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)
- 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)
Product Details
4144-890443
Data sheet
- For Use On
- Steel, Concrete
- Application Method
- Brush, Roller, Spray
- Sheen
- Eggshell
- Colour
- Fully Tintable
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 4L, 20L
- Solvent
- Epoxy
- Mixing Ratio
- 4:1
- Suitable Substrates
- Steel, concrete
- Key Features
- Cures at low temperatures, can be recoated even after long weathering periods
- Application
- Brush, Roller, Spray
- Touch Dry (at 20°C)
- 6 hours
- Dry to Recoat (at 20°C)
- 8 hours
- Fully Cured (at 20°C)
- 4 days
- Pot Life (at 20°C)
- 4 hours
- Unit Contents
- Base & hardener
- Compatible Primers
- -
- Compatible Topcoats
- -
- Max. Application Temperature
- -
- Min. Application Temperature
- -5°C (23°F)
- Shelf Life (from date of manufacture)
- 24 months (base & hardener)
- UN Number (Activator)
- UN3469
- UN Number (Base)
- UN1263
- Base Type
- Solvent-Based
- Suitable For Use On
- Concrete
- Suitable For Use On
- Steel
- Suitable For Use On
- Compatible Existing Coatings
- Finish
- Eggshell
- Application Method
- Roller
- Application Method
- Spray
- Application Method
- Brush
- Usages
- High Solids
- Usages
- Flexible
- Usages
- Low Temperature
- Usages
- Atmospheric
- Usages
- Anti-Corrosive
- Usages
- Zinc Phosphate
- Usages
- Tough/Durable
- Usages
- Overcoatable
- Usages
- Direct to Metal
- Product Usage Type
- Primer & Midcoat
- Product Range
- SigmaCover
- Colour Family
- Blue
- 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
- Grey
- Colour Family
- Green
- Categorised As
- Metal Paints > Low Temperature Direct-to-Metal Paints
- Seasonal
- Cold Weather
- Product Type
- Epoxy
- Environment
- Atmospheric
- Environment
- Low Temperature
- Touch Dry/Dust Free (@ 20-25°C)
- 6 hours
- Product Attributes
- High Solids
- Product Attributes
- Anti-Corrosive
- Product Attributes
- Zinc Phosphate
- Product Attributes
- Overcoatable
- Product Attributes
- Flexible
- Product Attributes
- Tough
Questions
Question about the product
Be the first to ask a question about this product!
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaCover 456 HS 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
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