PPG Thinner 21-06
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.More Information Delivery Info
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PPG SigmaTherm 350 is a heat-resistant silicone/acrylic finish, featuring excellent resistance against weathering and a minimum drying time of 3 days at 20°C (68°F) should be allowed before exposure to heat.
- Heat-resistant up to 350°C (660°F)
- To be used for the internal and external protection of steel surfaces
- Widely compatible with inorganic zinc primers
Description
PPG SigmaTherm 350 is a heat-resistant silicone/acrylic finish, featuring excellent resistance against weathering and a minimum drying time of 3 days at 20°C (68°F) should be allowed before exposure to heat.
Features & Benefits
- Heat-resistant up to 350°C (660°F)
- To be used for the internal and external protection of steel surfaces
- Widely compatible with inorganic zinc primers
Product Data
Two-component, high-build, heat-resistant epoxy phenol novolac coating.
Epoxy coatings will chalk and fade upon exposure to sunlight, elevated temperatures, or chemical exposure. Discolouration and normal chalking does not impact performance. Light colours will darken over time. Some batch-to-batch variation in colour is to be expected. Colour matches are approximate.
| Data for mixed product at 20°C (68°F) | |
|---|---|
| Number of components | One |
| Mass density | Aluminum: 1.1 kg/l (9.2 lb/US gal) |
| Volume solids | Aluminum: 42 ± 2% |
| VOC (Supplied) | Directive 1999/13/EC, SED: max. 491 g/kg (aluminum) |
| max. 540.0 g/l (approx. 4.5 lb/gal) (aluminum) | |
| Recommended dry film thickness | 25 - 30 µm (1.0 - 1.2 mils) |
| Theoretical spreading rate | Aluminum: 16.8 m²/l for 25 µm (674 ft²/US gal for 1.0 mils) |
| Dry to touch | 1 hour |
| Overcoating Interval | Minimum: 18 hours |
| Maximum: Unlimited | |
| Shelf life | At least 24 months when stored cool and dry |
Surface Preparation
Recommended Substrate Conditions and Temperatures
Substrate conditions
- Thermal aluminum sprayed steel or thermal zinc sprayed steel must be dry and free from any contamination
- Suitable coating (zinc silicate primer) must be dry, free from any contamination and zinc salts
- Steel; blast cleaned to a minimum of ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
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
- By using a mist coat technique, it is possible to apply SIGMATHERM 350 on top of a zinc silicate primer
- Power agitate to uniform consistency
Air Spray
Recommended thinner
- No thinner should be added
Nozzle orifice
- 1.5 – 2.0 mm (approx. 0.060 – 0.079 in)
Nozzle pressure
- 0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)
Airless Spray
Recommended thinner
- No thinner should be added
Nozzle orifice
- Approx. 0.38 – 0.48 mm (0.015 – 0.019 in)
Nozzle pressure
- 12.0 - 15.0 MPa (approx. 120 - 150 bar; 1741 - 2176 p.s.i.)
Brush/roller
- Only for touch-up and spot repair
Cleaning Solvent
Spreading Rate and Film Thickness
Theoretical Spreading Rate - Aluminium
| DFT | Theoretical Spreading Rate |
|---|---|
| 25 µm (1.0 mils) | 16.8 m²/l (674 ft²/US gal) |
| 30 µm (1.2 mils) | 14.0 m²/l (561 ft²/US gal) |
Overcoating interval for DFT up to 30 µm (1.2 mils)
| Overcoating with... | Interval | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
|---|---|---|---|---|---|
| Itself | Minimum | 24 hours | 18 hours | 15 hours | 10 hours |
| Maximum | Unlimited | Unlimited | Unlimited | Unlimited |
Notes:
- Surface should be dry and free from any contamination
Curing time for DFT up to 30 µm (1.2 mils)
| Substrate temperature | Dry to Touch | Dry to Handle |
|---|---|---|
| 10°C (50°F) | 1.5 hours | 3 hours |
| 20°C (68°F) | 1 hour | 2 hours |
| 30°C (86°F) | 45 minutes | 1.5 hours |
| 40°C (104°F) | 30 minutes | 1 hour |
Notes:
- 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)
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
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)
- Relative humidity - Substrate Temperature - Air Temperature (information sheet 1650)
Product Details
3940-514913
Data sheet
- Manufacturer
- PPG
- Water / Solvent Based
- Solvent
- For Use On
- Steel
- Application Method
- Spray
- Sheen
- Semi-gloss
- Colour
- Standard / Ready Mixed
- Single, Two or Three Pack
- Single
- Pack Size
- 20L
- Base Type
- Silicone/acrylic
- Mixing Ratio
- -
- Key Features
- Excellent resistance against weathering, heat-resistant up to 350°C (660°F), widely compatible with inorganic zinc primers
- Touch Dry (at 20°C)
- 1 hour
- Dry to Handle (at 20°C)
- 2 hours
- Dry to Recoat (at 20°C)
- Minimum: 18 hours. Maximum: Unlimited
- Fully Cured (at 20°C)
- -
- Pot Life (at 20°C)
- -
- Coverage
- Aluminium: 16.8 m2/I for 25 µm (674 ft 2/US gal for 1.0 mils)
- Recommended Thinner/Cleaner
- For cleaning only: PPG Thinner 21-06
- Unit Contents
- -
- Compatible Primers
- -
- Compatible Topcoats
- Itself
- Max. Application Temperature
- -
- Min. Application Temperature
- At least 3°C (5°F) above dew point
- Density
- Aluminium: 1.1 kg/I (9.2 lb/US gal)
- Solids by Volume
- Aluminium: 42 ±2%
- Heat Resistance (up-to)
- 350°C
- VOC
- Directive 1999/13/EC, SED: max. 492 g/kg (white). Directive 1999/13/EC, SED: max. 491 g/kg (aluminium). max. 590.0 g/I (approx. 4.9 lb/gal) (white). max. 540.0 g/I (approx. 4.5 lb/gal) (aluminium)
- Shelf Life (Once Opened)
- At least 24 months when stored cool and dry
- UN Number
- UN1263
- Base Type
- Solvent-Based
- Suitable For Use On
- Steel
- Finish
- Semi-Gloss
- Application Method
- Spray
- Product Usage Type
- Topcoat
- Product Range
- SigmaTherm
- Colour Family
- Black
- Colour Family
- Aluminium
- Heat Resistance
- Up To 400°C
Be the first to ask a question about this product!
IMPORTANT SHIPPING & DELIVERY INFORMATION
PPG SigmaTherm 350 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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