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PPG SigmaCover 690 is a two-component high solids aluminium pigmented polyamine cured modified epoxy primer/coating designed for maintenance. SigmaCover 690 is a self-priming coating, tolerant to lower grades of steel preparation, and is compatible with most aged, good adhering coatings. It can be recoated with epoxy and polyurethane paints, curing at temperatures down to 5°C (41°F) with low VOC.
- Good flow properties
- Good impact and abrasion resistance
- If the substrate temperature drops below 5°C (41°F) until 0°C (32°F), the wintergrade type should be used (see 7414WG)
- No induction time - 3 hours pot life - Touch dry in 4 hours - Fully cured after 5 days
- See below for more information on surface preparation, application details and curing times
Description
PPG SigmaCover 690, a two-component high solids aluminium pigmented polyamine cured modified epoxy primer/coating designed for maintenance. The self-priming coating is tolerant to lower grades of steel preparation and is compatible with most aged, good adhering coatings.
SigmaCover 690 can be recoated with epoxy and polyurethane paints, curing at temperatures down to 5°C (41°F) with low VOC. Refer further below for more information on surface preparation, application details and curing times.
Features & Benefits
- Two-component high solids aluminium pigmented polyamine cured modified epoxy primer/coating
- Primer/coating designed for maintenance
- For steel in atmospheric exposure conditions and immersion
- Low VOC
- Good flow properties
- Self-priming coating tolerant to lower grades of steel preparation
- Compatible with most aged, good adhering coatings
- Good recoatability with epoxy and polyurethane paints
- Good curing at temperatures down to 5°C (41°F)
- Good impact and abrasion resistance
- If the substrate temperature drops below 5°C (41°F) until 0°C (32°F), the wintergrade type should be used (see 7414WG)
- No induction time
- 3 hours pot life
- Touch dry in 4 hours
- Fully cured after 5 days
- See below for more information on surface preparation, application details and curing times
| Reference | Colour | Size | Gloss Level |
|---|---|---|---|
| 328960 | Aluminium (light) | 4 litres | Semi-gloss |
| - | Aluminium (light) | 20 litres | Semi-gloss |
| 328960 | Aluminium (dark) | 4 litres | Semi-gloss |
| - | Aluminium (dark) | 20 litres | Semi-gloss |
Product Data
Two-component high solids aluminium pigmented polyamine cured modified epoxy primer/coating
| Data for mixed product at 20°C (68°F) | |
|---|---|
| Number of components | Two |
| Mass density | 1.3 kg/l (10.8 lb/US gal) |
| Volume solids | 90 ± 2% |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 150.0 g/kg |
| UK PG 6/23(92) Appendix 3: max. 198.0 g/l (approx. 1.7 lb/US gal) | |
| Recommended dry film thickness | 75 - 125 µm (3.0 - 5.0 mils) depending on system |
| Theoretical spreading rate | 12.0 m²/l for 75 µm (481 ft²/US gal for 3.0 mils) |
| 7.2 m²/l for 125 µm (289 ft²/US gal for 5.0 mils) | |
| Dry to touch | 4 hours |
| Overcoating Interval | Minimum: 12 hours |
| Maximum: 4 months | |
| Full cure after | 5 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
Atmospheric exposure conditions
- Steel;
- Blast cleaned to ISO-Sa2 or power tool cleaned to ISO-St2 for good corrosion protection
- Steel with approved shop primer;
- Sweep blasted to SPSS-Ss or power tool cleaned to SPSS-Pt2
- Existing sound coating systems;
- sufficiently roughened, dry and cleaned
Immersion in water
- Steel;
- Blast cleaned to ISO-Sa2½
- Steel with approved zinc silicate shop primer;
- sweep Blasted to SPSS-Ss or power tool cleaned to SPSS-Pt3
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 77.5:22:5
- 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 and slower cure
- Thinner should be added after mixing the components
Induction Time
None.
Pot life
- 3 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
- 1.8 – 2.0 mm (approx. 0.070 – 0.079 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 – 0.53 mm (0.019 – 0.021 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) | 12.0 m²/l (481 ft²/US gal) |
| 100 µm (4.0 mils) | 9.0 m²/l (361 ft²/US gal) |
| 125 µm (5.0 mils) | 7.2 m²/l (289 ft²/US gal) |
Overcoating interval for DFT up to 125 µm (5.0 mils)
| Overcoating with... | Interval | 5°C (41°F) | 10°C (50°F) | 15°C (59°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
|---|---|---|---|---|---|---|---|
| Itself | Minimum | 48 hours | 36 hours | 20 hours | 12 hours | 8 hours | 6 hours |
| Maximum | 6 months | 6 months | 6 months | 4 months | 3 months | 3 months |
Note:
- Surface should be dry and free from any contamination
- For polyurethane paints the minimum overcoating time should be raised with 50%
Curing time for DFT up to 125 µm (5.0 mils)
| Substrate temperature | Dry to touch | Dry to handle | Full Cure |
|---|---|---|---|
| 5°C (41°F) | 16 hours | 48 hours | 10 days |
| 10°C (50°F) | 9 hours | 36 hours | 7 days |
| 15°C (59°F) | 6 hours | 20 hours | 6 days |
| 20°C (68°F) | 4 hours | 12 hours | 5 days |
| 30°C (86°F) | 3 hours | 8 hours | 4 days |
| 40°C (104°F) | 2 hours | 6 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 |
|---|---|
| 15°C (59°F) | 5 hours |
| 20°C (68°F) | 3 hours |
| 30°C (86°F) | 2 hours |
| 40°C (104°F) | 1 hours |
| 50°C (122°F) | 1 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
- 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)
Product Details
4006-770127
Data sheet
- Manufacturer
- PPG
- For Use By
- Professional Use
- Water / Solvent Based
- Solvent
- For Use On
- Steel
- Application Method
- Brush, roller, spray
- Sheen
- Semi-gloss
- Colour
- Standard / Ready Mixed
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 4L, 20L
- Solvent
- Epoxy
- Mixing Ratio
- 77.5 : 22:5
- Key Features
- Self-priming coating tolerant to lower grades of steel preparation, curing at temperatures down to 5°C (41°F)
- Touch Dry (at 20°C)
- 4 hours
- Dry to Handle (at 20°C)
- 12 hours
- Dry to Recoat (at 20°C)
- 12 hours
- Fully Cured (at 20°C)
- 5 days
- Pot Life (at 20°C)
- 3 hours
- Coverage
- 12.0 m²/l for 75 µm/7.2 m²/l for 125 µm
- Recommended Thinner/Cleaner
- 91-92/90-53
- Unit Contents
- Base & hardener
- Compatible Primers
- -
- Compatible Topcoats
- -
- Max. Application Temperature
- -
- Min. Application Temperature
- 5°C (41°F)
- Density
- 1.3 kg/l (10.8 lb/US gal)
- Solids by Volume
- 90 ± 2%
- Heat Resistance (up-to)
- -
- VOC
- Directive 1999/13/EC, SED: max. 150.0 g/kg UK PG 6/23(92) Appendix 3: max. 198.0 g/l (approx. 1.7 lb/US gal)
- Shelf Life (from date of manufacture)
- 24 months (Base & hardener)
- UN Number (Activator)
- UN3469
- UN Number (Base)
- UN1263
- Base Type
- Epoxy
- Base Type
- Solvent
- Suitable For Use On
- Steel
- Suitable For Use On
- Compatible Existing Coatings
- Suitable For Use On
- Shopprimer
- Suitable For Use On
- Zinc Silicates
- Finish
- Semi-Gloss
- Application Method
- Brush
- Application Method
- Roller
- Application Method
- Spray
- Usages
- Surface Tolerant
- Usages
- Atmospheric
- Usages
- Immersion
- Usages
- High Solids
- Usages
- Low VOC
- Product Usage Type
- Primer & Topcoat
- Product Range
- SigmaCover
- Colour Family
- Grey
- Dry to Recoat (@ 20-25°C)
- 12 hours
Questions
Question about the product
Be the first to ask a question about this product!
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaCover 690 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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