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PPG SigmaZinc 19 is a one-component, zinc-rich epoxy primer with good anti-corrosive properties, and whilst designed for repair of two-component zinc epoxy primers and zinc silicate primers, PPG SigmaZinc 19 can also be used as a reconditioner for aged, derusted and galvanised steel.
- Dries at temperatures down to –10°C (14°F)
- Dry heat resistance 125°C (260°F) with peaks up to 175°C (350°F)
- Quick-drying, can be overcoated after a short interval
Description
PPG SigmaZinc 19 is a one-component, zinc-rich epoxy primer with good anti-corrosive properties, and whilst designed for repair of two-component zinc epoxy primers and zinc silicate primers, PPG SigmaZinc 19 can also be used as a reconditioner for aged, derusted and galvanised steel.
Top Features & Benefits
- Dry film contains 90% zinc by weight
- Dries at temperatures down to –10°C (14°F)
- Dry heat resistance 125°C (260°F) with peaks up to 175°C (350°F)
- The superimposed system must be unsaponifiable
- Quick-drying, can be overcoated after a short interval
Preparation & Application
Recommended Substrate Conditions and Temperature
- Steel; blast cleaned to ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
- Aged hot-dip galvanized steel with rusty spots; thoroughly derusted to ISO-St3 or ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
- Zinc rich epoxies and zinc silicates must be dry and free from any contamination
- Substrate temperature during application at -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
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 1433 and 1434).
Air Spray
Recommended thinner: PPG Thinner 91-79
Volume of thinner: 20 - 25%, depending on required thickness and application conditions
Nozzle orifice: 1.5 – 3.0 mm (approx. 0.060 – 0.110 in)
Nozzle pressure: 0.2 - 0.3 MPa (approx. 2 - 3 bar; 29 - 44 p.s.i.)
Airless Spray
Recommended thinner: PPG Thinner 91-79
Volume of thinner: 20 - 25%, depending on required thickness and application conditions
Nozzle orifice: Approx. 0.43 mm (0.017 in)
Nozzle pressure: 10.0 - 15.0 MPa (approx. 100 - 150 bar; 1451 - 2176 p.s.i.)
Brush/Roller
Recommended thinner: PPG Thinner 91-79
Volume of thinner: 0 – 3%
Cleaning Solvent
Notes:
- Zinc rich primers can form zinc salts on the surface; preferably they should not be weathered for long periods before overcoating.
- An interval of several months can be allowed under clean interior exposure conditions.
- In clean exterior conditions, a maximum interval of 14 days can be tolerated, but in industrial or marine conditions this interval should be reduced to the practical minimum.
- Before overcoating visible surface contamination must be removed by high-pressure water cleaning, sweep blasting or mechanical cleaning.
- When a long overcoating interval is required, it is recommended to overcoat SIGMAZINC 19 as soon as possible with a suitable sealer coat.
Safety Precautions
For paint and recommended thinners see INFORMATION SHEETS 1430, 1431 and relevant Material Safety Data Sheets. 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.
Product Data
| Data for Product at 20°C (68°F) | |||||
|---|---|---|---|---|---|
| Number of components | One | ||||
| Mass density | 2.4 kg/l (20.0 lb/US gal) | ||||
| Volume solids | 38 ± 2% | ||||
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 246.0 g/kg. max. 584.0 g/l (approx. 4.9 lb/US gal) | ||||
| Recommended dry film thickness | 35 µm (1.4 mils) | ||||
| Theoretical spreading rate | 10.9 m²/l for 35 µm (435 ft²/US gal for 1.4 mils) | ||||
| Dry to touch | 4 minutes | ||||
| Overcoating interval | Minimum: 2 hours. Maximum: Extended | ||||
| Shelf life | At least 9 months when stored cool and dry | ||||
| Overcoating interval for DFT up to 35 µm (1.4 mils) | |||||
|---|---|---|---|---|---|
| Overcoating with... | Interval | -10°C (14°F) | 5°C (41°F) | 10°C (50°F) | 20°C (68°F) |
| Various two-component epoxy coatings | Minimum Maximum |
6 hours Extended |
4 hours Extended |
3 hours Extended |
2 hours Extended |
| Curing time for DFT up to 35 µm (1.4 mils) | ||
|---|---|---|
| Substrate Temp. | Dry to Touch | |
| 10°C (50°F) | 30 minutes | |
| 15°C (59°F) | 5 minutes | |
| 20°C (68°F) | 4 minutes | |
References
- 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)
Product Details
3931-511554
Data sheet
- Manufacturer
- PPG
- Water / Solvent Based
- Solvent
- For Use On
- Steel, Galvanized Steel
- Application Method
- Spray, Brush, Roller
- Sheen
- Flat
- Colour
- Standard / Ready Mixed
- Single, Two or Three Pack
- Single
- Pack Size
- 2L
8L - Base Type
- Zinc-rich epoxy
- Mixing Ratio
- -
- Key Features
- Quick-drying, anti-corrosive, can be used as a reconditioner for aged, derusted and galvanised steel
- Touch Dry (at 20°C)
- 4 minutes
- Dry to Handle (at 20°C)
- -
- Dry to Recoat (at 20°C)
- 2 hours
- Fully Cured (at 20°C)
- -
- Pot Life (at 20°C)
- -
- Coverage
- 10.9 m²/l for 35 µm (435 ft²/US gal for 1.4 mils)
- Recommended Thinner/Cleaner
- PPG Thinner 90-53, PPG Thinner 91-79
- Unit Contents
- -
- Compatible Primers
- -
- Compatible Topcoats
- Various two-pack epoxy coatings
- Max. Application Temperature
- -
- Min. Application Temperature
- -10°C (14°F), provided the substrate is free from ice and dry
- Density
- 2.4 kg/l (20.0 lb/US gal)
- Solids by Volume
- 38 ± 2%
- Heat Resistance (up-to)
- 125°C (260°F)
- VOC
- Directive 1999/13/EC, SED: max. 246.0 g/kg. max. 584.0 g/l (approx. 4.9 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
- Steel
- Suitable For Use On
- Galvanised Steel
- Suitable For Use On
- Zinc Silicate and Zinc Rich Epoxy Primed Surfaces
- Finish
- Flat
- Application Method
- Brush
- Application Method
- Roller
- Application Method
- Spray
- Usages
- Atmospheric
- Usages
- Anti-Corrosive
- Usages
- Zinc Rich /Cold Galvanising
- Usages
- Heat Resistance
- Usages
- Low Temperature
- Product Usage Type
- Primer
- Product Range
- SigmaZinc
- Colour Family
- Grey
- Dry to Recoat (@ 20-25°C)
- 2 hours
- Zinc Content
- 0.9
Questions
Question about the product
Be the first to ask a question about this product!
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaZinc 19 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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