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PPG SigmaFast 20 is a high-build zinc phosphate primer based on modified alkyd resin, with good anticorrosive properties under atmospheric conditions. The primer can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.
- Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- Fast drying (as low as 45 minutes) - Fast handling
- Recoatable with most one- and two-component coatings
- Suitable for atmospheric exposure conditions - Lead- and chromate free
- See below for more information on surface preparation, application details and curing times
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PPG SigmaFast 20, a high-build zinc phosphate primer, based on modified alkyd resin, with good anticorrosive properties under atmospheric conditions. The primer is fast drying and recoatable with most one-and two-component coatings, and can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.
Features & Benefits
- Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- Good anticorrosive properties under atmospheric conditions
- Fast drying - as low as 45 minutes
- Fast handling
- Recoatable with most one- and two-component coatings
- Suitable for atmospheric exposure conditions
- Lead- and chromate free
- Can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments
- See below for more information on surface preparation, application details and curing times
| Reference | Colour | Size | Gloss Level |
|---|---|---|---|
| 261714 | Grey | 5 litres | Flat |
| 261715 | Grey | 20 litres | Flat |
| 312468 | Off White | 5 litres | Flat |
| 199088 | Red Brown | 5 litres | Flat |
| 178249 | Red Brown | 20 litres | Flat |
| 181054 | Traffic Grey A (RAL 7042) | 20 litres | Flat |
| 219208 | RAL & BS colours | 5 litres | Flat |
| 204826 | RAL & BS colours | 20 litres | Flat |
Product Data
High-build zinc phosphate primer, based on modified alkyd resin.
| Data for mixed product at 20°C (68°F) | |
|---|---|
| Number of components | One |
| Mass density | 1.5 kg/l (12.5 lb/US gal) |
| Volume solids | 55 ± 2% |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 258.0 g/kg |
| UK PG 6/23(92) Appendix 3: max. 382.0 g/l (approx. 3.2 lb/US gal) | |
| Recommended dry film thickness | 50 - 75 µm (2.0 - 3.0 mils) per coat |
| Theoretical spreading rate | 7.3 m²/l for 75 µm (294 ft²/US gal for 3.0 mils) |
| Dry to touch | 15 minutes |
| Overcoating Interval | Minimum: 45 minutes |
| Full cure after | 7 days |
| Shelf life | At least 24 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
Substrate conditions
- Steel; blast cleaned to ISO-Sa2½ for excellent corrosion protection
- Steel; blast cleaned to ISO-Sa2½
- Steel; power tool cleaned to min. ISO-St2
- Shop primed steel; sweep blasted or power tool cleaned to SPSS-Ss or SPSS-Pt2
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
Stir well before use
- 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
- 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)
Air Spray
Recommended thinner
Volume of thinner
- 5 - 10%, depending on required thickness and application conditions
Nozzle orifice
- 1.8 – 2.0 mm (approx. 0.070 – 0.079 in)
Nozzle pressure
- 0.4 MPa (approx. 4 Bar; 51 p.s.i.)
Airless Spray
Recommended thinner
Volume of thinner
- 0 - 5%, depending on required thickness and application conditions
Nozzle orifice
- Approx. 0.38 – 0.48 mm (0.015 – 0.019 in)
Nozzle pressure
- 12.0 - 16.0 MPa (approx. 120 - 160 bar; 1741 - 2321 p.s.i.)
Brush/roller
Recommended thinner
Volume of thinner
- 0 – 2%
Cleaning Solvent
- Thinner 21-06
Overcoating interval for DFT up to 75 µm (3.0 mils)
| Overcoating with... | Interval | 10°C (50°F) | 15°C (59°F) | 20°C (68°F) |
|---|---|---|---|---|
| Two-component products: SIGMACOVER 456, SIGMACOVER 435 or SIGMADUR 520 | Minimum | 12 hours | 10 hours | 8 hours |
| Maximum | Unlimited | Unlimited | Unlimited | |
| Alkyd-based products (e.g. SIGMAFAST 20 and SIGMAFAST 40) | Minimum | 1.5 hours | 1 hour | 45 minutes |
| Maximum | Unlimited | Unlimited | Unlimited |
Notes:
- Surface should be dry and free from any contamination
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 vapouur, 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)
- 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
3973-857977
Data sheet
- Manufacturer
- PPG
- For Use On
- Steel
- Application Method
- Brush, Roller, Spray
- Sheen
- Flat
- Colour
- Fully Tintable
- Single, Two or Three Pack
- Single
- Pack Size
- 5L, 20L
- Parts
- One
- Base Type
- Solvent-borne
- Solvent
- Zinc phosphate
- Mixing Ratio
- -
- Suitable Substrates
- Steel
- Key Features
- Good anticorrosive properties under atmospheric conditions; Can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.
- Touch Dry (at 20°C)
- 15 minutes
- Dry to Handle (at 20°C)
- -
- Dry to Recoat (at 20°C)
- 45 minutes
- Fully Cured (at 20°C)
- 7 days
- Pot Life (at 20°C)
- -
- Coverage
- 7.3 m²/l for 75 µm (294 ft²/US gal for 3.0 mils)
- Recommended Thinner/Cleaner
- THINNER 21-06
- Unit Contents
- -
- Compatible Primers
- -
- Compatible Topcoats
- Most one-and two-component coatings
- Max. Application Temperature
- -
- Min. Application Temperature
- 5°C (41°F)
- Density
- 1.5 kg/l (12.5 lb/US gal)
- Solids by Volume
- 55 ± 2%
- Heat Resistance (up-to)
- -
- VOC
- Directive 1999/13/EC, SED: max. 258.0 g/kg UK PG 6/23(92) Appendix 3: max. 382.0 g/l (approx. 3.2 lb/US gal)
- Shelf Life (from date of manufacture)
- At least 24 months when stored cool and dry
- UN Number
- UN1263
- Base Type
- Alkyd
- Base Type
- Solvent-Based
- Suitable For Use On
- Steel
- Suitable For Use On
- Shop Primed Steel
- Finish
- Flat
- Application Method
- Roller
- Application Method
- Brush
- Application Method
- Spray
- Usages
- Atmospheric
- Usages
- Zinc Phosphate
- Usages
- High Build
- Usages
- Anti-Corrosive
- Product Usage Type
- Primer
- Product Range
- SigmaFast
- Colour Family
- Black
- Colour Family
- Blue
- Colour Family
- Neutral
- Colour Family
- Brown
- Colour Family
- Orange
- Colour Family
- Cream
- Colour Family
- Yellow
- Colour Family
- Green
- Colour Family
- White
- Colour Family
- Red
- Colour Family
- Pink
- Colour Family
- Anthracite Grey
- Colour Family
- Purple
- Colour Family
- Grey
- Dry to Recoat (@ 20-25°C)
- 45 mins
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IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaFast 20 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