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PPG SigmaDur 520, a two-component, high-build semi-gloss aliphatic acrylic polyurethane finish that can be recoated an unlimited amount, with excellent resistance to atmospheric exposure conditions.
- Available in 2,300+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- Easy application by roller and airless spray - Can be recoated even after long atmospheric exposure
- Good colour and gloss retention (aluminum version becomes grey) - Non-chalking, non-yellowing
- Cures at temperatures down to -5°C (23°F) - Tough and abrasion resistant
- Resistant to splash of mineral and vegetable oils, paraffins, aliphatic petroleum products and mild chemicals
Product customisation
Don't forget to save your customization to be able to add to cartDescription
PPG SigmaDur 520 is two-component, high-build semi-gloss aliphatic acrylic polyurethane finish with excellent resistance to atmospheric exposure conditions that can be recoated an unlimited amount.
Easy to apply by roller and airless spray, SigmaDur 520 is available in 2,300+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
. The finish is tough and durable, resistant to splash of mineral and vegetable oils, paraffins, aliphatic petroleum products and mild chemicals, and can be recoated even after long atmospheric exposure.
Features & Benefits
- Easy application by roller and airless spray
- Unlimited recoats
- Available in 2,300+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
- Excellent resistance to atmospheric exposure conditions
- Good colour and gloss retention (aluminum version becomes grey)
- Non-chalking, non-yellowing
- Cures at temperatures down to -5°C (23°F)
- Tough and abrasion resistant
- Resistant to splash of mineral and vegetable oils, paraffins, aliphatic petroleum products and mild chemicals
- Can be recoated even after long atmospheric exposure
- Used by Utgrunden Offshore Wind Farm, Baltic Sea, protecting against seawater immersion, strong winds, breaking waves, ice formation
- Also used at Tylstrup Onshore Wind Farm to combat outdoor weathering, ice, sun and airborne animal manure
Product Data
Two-component, high-build semi-gloss aliphatic acrylic polyurethane finish
| Data for mixed product at 20°C (68°F) | |
|---|---|
| Number of components | Two |
| Mass density | White: 1.4 kg/l (11.7 lb/US gal) |
| Aluminium: 1.1 kg/l (9.2 lb/US gal) | |
| Volume solids | White: 58 ± 2% |
| Aluminium: 51 ± 2% | |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 287 g/kg (white) |
| Directive 1999/13/EC, SED: max. 377 g/kg (aluminium) | |
| max. 383.0 g/l (approx. 3.2 lb/gal) (white) | |
| max. 405.0 g/l (approx. 3.4 lb/gal) (aluminium) | |
| Recommended dry film thickness | 50 - 75 µm (2.0 - 3.0 mils) depending on system |
| Theoretical spreading rate | White: 11.6 m²/l for 50 µm (465 ft²/US gal for 2.0 mils) |
| Aluminium: 9.6 m²/l for 50 µm (385 ft²/US gal for 2.0 mils) | |
| Dry to touch | 1 hour |
| Overcoating Interval | Minimum: 6 hours |
| Maximum: Unlimited | |
| Full cure after | 4 days |
| Shelf life | Base: at least 36 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
- Previous coat (epoxy or polyurethane) must be dry and free from any contamination
- Surface of previous coat should be sufficiently roughened if necessary
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
- Relative humidity during application and curing should not exceed 85%
- Premature exposure to early condensation and rain may cause colour and gloss change
Application
Instructions for Use
Mixing ratio by volume: base to hardener 88:12
- The temperature of the mixed base and hardener should be above 10°C (50°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
- Aluminium version has lower gloss than the standard version and the colour could be different by application method
Induction Time
None.
Pot life
- 5 hours at 20°C (68°F)
Refer below for more information
Air spray
Recommended thinner
Volume of thinner
- 5 - 10%, depending on required thickness and application conditions
Nozzle orifice
- 1.0 - 1.5 mm (approx. 0.040 - 0.060 in)
Nozzle pressure
- 0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)
Airless spray
Recommended thinner
- THINNER 21-06
Volume of thinner
- 0 - 5%, depending on required thickness and application conditions
Nozzle orifice
- Approx. 0.46 mm (0.018 in)
Nozzle pressure
- 15.0 MPa (approx. 150 bar; 2176 p.s.i.)
Brush/roller
Recommended thinner
- THINNER 21-06
Volume of thinner
- 0 – 5%
Cleaning Solvent
Spreading Rate and Film Thickness
White:
| DFT | Theoretical spreading rate |
|---|---|
| 50 µm (2.0 mils) | 11.6 m²/l (465 ft²/US gal) |
| 75 µm (3.0 mils) | 7.7 m²/l (310 ft²/US gal) |
Aluminium:
| DFT | Theoretical spreading rate |
|---|---|
| 50 µm (2.0 mils) | 9.6 m²/l (385 ft²/US gal) |
| 75 µm (3.0 mils) | 6.4 m²/l (257 ft²/US gal) |
Overcoating interval for DFT up to 75 µm (3.0 mils)
| Overcoating with... | Interval | -5°C (23°F) | 0°C (32°F) | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
|---|---|---|---|---|---|---|---|
| Itself | Minimum | 24 hours | 16 hours | 8 hours | 6 hours | 5 hours | 3 hours |
| Maximum | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited |
Note:
- Surface should be dry and free from any contamination
Curing time for DFT up to 75 µm (3.0 mils)
| Substrate temperature | Dry to touch | Full cure |
|---|---|---|
| -5°C (23°F) | 24 hours | 15 days |
| 0°C (32°F) | 16 hours | 11 days |
| 10°C (50°F) | 8 hours | 6 days |
| 20°C (68°F) | 6 hours | 4 days |
| 30°C (86°F) | 5 hours | 3 days |
| 40°C (104°F) | 3 hours | 48 hours |
Notes:
- Adequate ventilation must be maintained during application and curing (please refer to INFORMATION SHEETS
- Safe Working in Confined Spaces (1433) and Directives for Ventilation Practice (1434)
- Premature exposure to early condensation and rain may cause colour and gloss change
Pot Life (at application viscosity)
| Mixed product temperature | Pot life |
|---|---|
| 10°C (50°F) | 7 hours |
| 20°C (68°F) | 5 hours |
| 30°C (86°F) | 3 hours |
| 40°C (104°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 vapour, as well as contact between the wet paint and exposed skin or eyes
- Contains a polyisocyanate curing agent
- Avoid at all times inhalation of aerosol spray mist
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)
- Relative humidity - Substrate Temperature - Air Temperature (information sheet 1650)
Product Details
4152-857853
Data sheet
- Manufacturer
- PPG
- For Use By
- Professional Use
- Water / Solvent Based
- Solvent
- For Use On
- Metal
- Application Method
- Brush, Roller, Spray
- Sheen
- Semi Gloss
- Colour
- Fully Tintable
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 4L, 20L
- Parts
- 2
- Base Type
- Solvent-borne
- Solvent
- Polyurethane
- Mixing Ratio
- 88:12
- Suitable Substrates
- Metal
- Key Features
- Excellent resistance to atmospheric exposure conditions that can be recoated an unlimited amount.
- Touch Dry (at 20°C)
- 60 mins
- Dry to Handle (at 20°C)
- -
- Dry to Recoat (at 20°C)
- 6 hours
- Fully Cured (at 20°C)
- 4 days
- Pot Life (at 20°C)
- 5 hours
- Coverage
- 50 - 75 µm (2.0 - 3.0 mils) depending on system
- Recommended Thinner/Cleaner
- THINNER 21-06/THINNER 90-53
- Unit Contents
- Base & hardener
- Compatible Primers
- -
- Compatible Topcoats
- -
- Max. Application Temperature
- -
- Min. Application Temperature
- -5°C (23°F)
- Density
- White: 1.4 kg/l (11.7 lb/US gal); Aluminium: 1.1 kg/l (9.2 lb/US gal)
- Solids by Volume
- White: 58 ± 2%; Aluminium: 51 ± 2%
- Heat Resistance (up-to)
- -
- VOC
- Directive 1999/13/EC, SED: max. 287 g/kg (white) Directive 1999/13/EC, SED: max. 377 g/kg (aluminium) max. 383.0 g/l (approx. 3.2 lb/gal) (white) max. 405.0 g/l (approx. 3.4 lb/gal) (aluminium)
- Shelf Life (from date of manufacture)
- Base: at least 36 months; Hardener: at least 24 months
- UN Number (Activator)
- UN1263
- UN Number (Base)
- UN1263
- Base Type
- Solvent-Based
- Suitable For Use On
- Metal
- Suitable For Use On
- Primed Surfaces
- Finish
- Semi-Gloss
- Application Method
- Brush
- Application Method
- Spray
- Application Method
- Roller
- Usages
- Tough/Durable
- Usages
- Colour Retention
- Usages
- Abrasion Resistant
- Usages
- Atmospheric
- Usages
- Gloss Retention
- Usages
- High Build
- Usages
- Low Temperature
- Product Usage Type
- Topcoat
- Product Range
- SigmaDur
- Colour Family
- White
- Colour Family
- Red
- Colour Family
- Pink
- Colour Family
- Purple
- Colour Family
- Grey
- Colour Family
- Black
- Colour Family
- Blue
- Colour Family
- Neutral
- Colour Family
- Brown
- Colour Family
- Orange
- Colour Family
- Anthracite Grey
- Colour Family
- Yellow
- Colour Family
- Green
- Categorised As
- Metal Paints > Low Temperature Topcoats
- Seasonal
- Cold Weather
- Product Type
- Synthetic Alkyd
- Environment
- Low Temperature
- Environment
- Atmospheric
- Touch Dry/Dust Free (@ 20-25°C)
- 60 mins
- Product Attributes
- Tough / Durable
- Product Attributes
- High Build
- Resistance to
- Abrasion
 KEVIN NICOL on 2022-10-13 09:51:00 | Question:
Good morning, I am looking for advice on the best primer to use for a Sigmadur 520 top coat, Any advice you can pass on would be appreciated Regards Kevin |
Answer from Rawlins’ Technical Team:
This product can be applied over previous applications of clean, dry, sound and prepared epoxy or polyurethane compatible coatings. Please can you provide information on the project to [email protected] so we can recommend a suitable product. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaDur 520 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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