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PPG SigmaShield 880 (also known as Amerlock 880) is a two-component, high-build, polyamine adduct-cured epoxy coating primarily designed for use in offshore splash zone maintenance such as pipelines, jetties, piling, etc. with outstanding sea water resistance that requires just a single coat that continues to cure when immersed in water.
- Excellent corrosion resistance - Good abrasion resistance - Resistant to well-designed cathodic protection
- Long-term protection in a single-coat application - suitable for application on exterior of buried pipes
- Suitable on wet blast or ultra-high-pressure water (UHPWW) cleaned substrates (damp or dry)
- As used by Zhenhua Heavy Industries, Co., Ltd. (ZpmC) in Nantong, China
- Available in 600+ colours, inc. RAL, BS & NCS
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PPG SigmaShield 880 (also known as Amerlock 880), a two-component, high-build, polyamine adduct-cured epoxy coating primarily designed for use in offshore splash zone maintenance, such as pipelines, jetties, piling, etc. SigmaShield 880 has outstanding sea water resistance, requiring just a single coat that continues to cure when immersed in water.
Used by Zhenhua Heavy Industries, Co., Ltd. (ZpmC) in Nantong, China, the world’s largest heavy-duty equipment manufacturer with 17 cross-owned steel workshops that manufacture conventional port machinery products, large steel bridges, gantry cranes, marine floating cranes, and ship fittings, yielding 15,000 tons of steel per month. ZPMC also manufactured foundation pipes for offshore wind turbines for the Rudong intertidal I development Zone (Ri1dZ). Located in the East China Sea, the Rudong wind farm consists of 58 wind turbines with the capacity of 150 megawatts of power.
Also used by The Pertamina (PERSERO) Processing Unit RU IV in Cilacap, Indonesia, an oil refinery with a production capacity of 348,000 barrels per day. Pertamina RU IV processes raw crude oil from the Middle East while simultaneously extracting lube oil and asphalt. It supplies between 34% and 60% of Indonesia’s national fuel needs.
Datang Changshan Power Plant used SigmaShield 880 on its large steel circulating water pipes, requiring protection from the effects of prolonged flowing water exposure (corrosion, and abrasion). Datang specializes in the development, investment, construction, operation and management of power energy for the state. Datang comprises six subsidiaries and eight branch companies, which operate the largest thermal power plant in China, the largest wind farm in the world, and the second largest hydropower project in China.
Features & Benefits
- Available in 600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- Primarily designed for use in offshore splash zone maintenance
- Pipelines, piling, jetties, etc
- Outstanding sea water resistance
- Excellent corrosion resistance
- Good abrasion resistance
- Continues to cure when immersed in water
- Long-term protection in a single-coat application
- Resistant to well-designed cathodic protection
- Suitable for application on exterior of buried pipes
- Suitable on wet blast or ultra-high-pressure water (UHPWW) cleaned substrates (damp or dry)
| Reference | Colour | Size | Gloss Level |
|---|---|---|---|
| 318047 | Black | 20 litres | Gloss |
| 323079 | Grey | 20 litres | Gloss |
| - | RAL, NCS & British Standard Colours | 20 litres | Gloss |
| - | RAL, NCS & British Standard Colours | 4 litres | Gloss |
Note:
Epoxy coatings will characteristically chalk and fade upon exposure to sunlight. Note that product tinted to customer colours cannot be used as primer or intermediate layer in a multicoat system, only use factory grind batches. Tinted colours can be used only as last layer in a multicoat system.
Product Data
| Data for mixed product at 20°C (68°F) | |
|---|---|
| Number of components | Two |
| Mass density | 1.5 kg/l (12.1 lb/US gal) |
| Volume solids | 85 ± 2% |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 122.0 g/kg |
| UK PG 6/23(92) Appendix 3: max. 207.0 g/l (approx. 1.7 lb/US gal) | |
| EPA Method 24: 200.0 g/ltr (1.7 lb/USgal) | |
| Recommended dry film thickness | 200 - 1000 µm (8.0 - 40.0 mils) depending on system |
| Theoretical spreading rate | 4.3 m²/l for 200 µm (170 ft²/US gal for 8.0 mils) |
| Dry to touch | 3 hours |
| Pot life | 2 hours at 20°C (68°F) |
| Overcoating Interval | Minimum: 3.5 hours |
| Maximum: 14 days | |
| Shelf life | Base: at least 24 months when stored cool and dry |
| Hardener: 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
Existing pipelines may have to be cleaned first by scraper pigs and solvents
- Coating performance will depend upon the surface preparation degree
- Steel; blast cleaned to ISO-Sa2 or ISO-Sa2½
- Blasting profile of 40 – 80 µm (1.6 – 3.1 mils) is recommended
- Steel; hand/power tool clean in accordance with St3 or SSPC-SP3 for new building and St2 or SSPC-SP2 for maintenance, UHPWH in accordance with WJ2L/3l (SSPC-VIS-4)
- Compatible previous coat must be dry and free from any contamination
Substrate Temperature & Application Conditions
- 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 75:25 (3:1)
- Thinner should be added after mixing the components
- Do not thin more than is required by appropriate application property
- Adding too much thinner results in reduced sag resistance and slower cure
Induction time
- None
Air spray
Recommended thinner
Volume of thinner
- 4 - 8%, depending on required thickness and application conditions
Nozzle orifice
- 1.5 – 3.0 mm (approx. 0.060 – 0.110 in)
Nozzle pressure
- 0.2 - 0.4 MPa (approx. 2 - 4 bar; 29 - 58 p.s.i.)
Airless spray
Recommended thinner
- THINNER 91-92
Volume of thinner
- 0 - 8%, depending on required thickness and application conditions
Nozzle orifice
- Approx. 0.53 – 0.69 mm (0.021 – 0.027 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 |
|---|---|
| 200 µm (8.0 mils) | 4.3 m²/l (170 ft²/US gal) |
| 500 µm (20.0 mils) | 1.7 m²/l (68 ft²/US gal) |
Overcoating interval for DFT up to 500 µm (20.0 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 | Minimum | 36 hours | 14 hours | 7 hours | 3.5 hours | 2 hours | 1.5 hours |
| Maximum | 2 months | 1.5 months | 1 month | 28 days | 21 days | 14 days | |
| Epoxy coatings | Minimum | 36 hours | 14 hours | 7 hours | 3.5 hours | 2 hours | 1.5 hours |
| Maximum | 1 month | 28 days | 21 days | 14 days | 7 days | 4 days | |
| Polyurethanes | Minimum | 48 hours | 22 hours | 14 hours | 10 hours | 6 hours | 4 hours |
| Maximum | 1 month | 28 days | 21 days | 14 days | 7 days | 4 days |
Note: Surface should be dry and free from any contamination
Curing time for DFT up to 500 µm (20 mils)
| Substrate temperature | Dry to touch | Dry to handle | Full cure |
|---|---|---|---|
| -5°C (23°F) | 24 hours | 48 hours | 30 days |
| 5°C (41°F) | 10 hours | 24 hours | 18 days |
| 10°C (50°F) | 5 hours | 16 hours | 14 days |
| 20°C (68°F) | 3 hours | 8 hours | 7 days |
| 30°C (86°F) | 2 hours | 5 hours | 5 days |
| 40°C (104°F) | 1 hour | 3 hours | 3 days |
Notes:
- For repair of jetties, piling etc. between tides, SIGMASHIELD 880 can be immersed within 30 minutes. Whitening can be happened for dark colour, but will not affect anti-corrosive performances.
- The curing time is related to the DFT of the paint and ventilation of the drying condition. High DFT and poor ventilation will slow curing
- Adequate ventilation must be maintained during application and curing (please refer to information sheets information sheet 1433 and information sheet 1434
Pot Life (at application viscosity)
| Mixed product temperature | Pot life |
|---|---|
| 10°C (50°F) | 3 hours |
| 20°C (68°F) | 2 hours |
| 30°C (86°F) | 1 hour |
Safety Precautions
- 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
- 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)
Product Details
4188-1037675
Data sheet
- Manufacturer
- PPG
- For Use By
- Professional Use
- For Use On
- Steel
- Application Method
- Brush, Roller, Spray
- Sheen
- Gloss
- Colour
- Fully Tintable
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 20L
- Parts
- Two
- Base Type
- Solvent-borne
- Solvent
- Epoxy
- Mixing Ratio
- 3:1
- Suitable Substrates
- Steel
- Key Features
- Outstanding sea water resistance that requires just a single coat that continues to cure when immersed in water
- Touch Dry (at 20°C)
- 3 hours
- Dry to Handle (at 20°C)
- 8 hours
- Dry to Recoat (at 20°C)
- 3.5 hours
- Fully Cured (at 20°C)
- 7 days
- Pot Life (at 20°C)
- 2 hours
- Coverage
- 4.3 m²/l for 200 µm
- Recommended Thinner/Cleaner
- THINNER 91-92/THINNER 90-53
- Unit Contents
- Base & hardener
- Compatible Primers
- -
- Compatible Topcoats
- -
- Max. Application Temperature
- 40°C (104°F)
- Min. Application Temperature
- -5°C (23°F)
- Density
- 1.5 kg/l (12.1 lb/US gal)
- Solids by Volume
- 85 ± 2%
- Heat Resistance (up-to)
- -
- VOC
- Directive 1999/13/EC, SED: max. 122.0 g/kg; UK PG 6/23(92) Appendix 3: max. 207.0 g/l; EPA Method 24: 200.0 g/ltr
- Shelf Life (from date of manufacture)
- Base & hardener: at least 24 months when stored cool and dry
- UN Number (Activator)
- UN3469
- UN Number (Base)
- UN1263
- Base Type
- Solvent-Borne
- Suitable For Use On
- Steel
- Finish
- Gloss
- Application Method
- Brush
- Application Method
- Roller
- Application Method
- Spray
- Product Usage Type
- Topcoat
- Product Range
- SigmaShield
- Colour Family
- Black
- Colour Family
- White
- Colour Family
- Neutral
- Colour Family
- Cream
- Colour Family
- Beige
- Colour Family
- Grey
- Colour Family
- Green
- Colour Family
- Blue
- Colour Family
- Red
- Colour Family
- Brown
- Colour Family
- Pink
- Colour Family
- Orange
- Colour Family
- Purple
- Colour Family
- Yellow
- Categorised As
- Marine Paints > Low Temperature Maintenance & Repair
- Seasonal
- Cold Weather
Questions
Question about the product
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IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaShield 880 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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