PPG Thinner 90-53
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.More Information Delivery Info
We no longer stock this product; please contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to find an alternative product.
We no longer stock this product; please contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to find an alternative product.
SigmaShield 420 is a two-component reinforced high solids polyamine adduct cured epoxy coating coating for cargo tanks of bulk or oil carriers and storage tanks, with excellent abrasion and impact resistance and outstanding (sea)water resistance.
A buildcoat for underwater and boottop systems, SigmaShield 420 has no induction time and a pot life of 1.5 hours - refer further below for more details on application, including spreading rate and film thickness, overcoating intervals and curing times.
Two-component, reinforced high solids polyamine adduct cured epoxy coating.
Data for mixed product | |
---|---|
Number of components | Two |
Mass density | 1.6 kg/l (13.4 lb/US gal) |
Volume solids | 81 ± 2% |
VOC (Supplied) | Directive 1999/13/EC, SED: max. 153.0 g/kg |
UK PG 6/23(92) Appendix 3: max. 239.0 g/l (approx. 2.0 lb/US gal) | |
Recommended dry film thickness | 125 - 200 µm (5.0 - 8.0 mils) depending on system |
Theoretical spreading rate | 5.4 m²/l for 150 µm (217 ft²/US gal for 6.0 mils) |
4.1 m²/l for 200 µm (162 ft²/US gal for 8.0 mils) | |
Dry to touch | 3 hours |
Overcoating Interval | Minimum: 3.5 hours |
Maximum: 14 days | |
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:
Refer below for more details on spreading rate and film thickness, overcoating intervals and curing times
Recommended Substrate Conditions and Temperatures
Substrate conditions
Substrate temperature and application conditions
Instructions for Use
Mixing ratio by volume: base to hardener 75:25 (3:1)
Air Spray
Recommended thinner
Volume of thinner
Nozzle orifice
Nozzle pressure
Airless Spray
Recommended thinner
Volume of thinner
Nozzle orifice
Nozzle pressure
Brush/roller
Recommended thinner
Volume of thinner
Cleaning solvent
Spreading Rate and Film Thickness
Theoretical spreading rate
DFT | Theoretical Spreading Rate |
---|---|
100 µm (4.0 mils) | 8.1 m²/l (325 ft²/US gal) |
150 µm (6.0 mils) | 5.4 m²/l (217 ft²/US gal) |
175 µm (7.0 mils) | 4.6 m²/l (186 ft²/US gal) |
200 µm (8.0 mils) | 4.1 m²/l (162 ft²/US gal) |
Overcoating Interval for DFT up to 150 µm (6.0 mils)
Overcoating with... | Interval | 5°C (41°F) | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
---|---|---|---|---|---|---|
Epoxy coatings | Minimum | 14 hours | 7 hours | 3.5 hours | 2 hours | 1.5 hours |
Maximum | 28 days | 28 days | 14 days | 7 days | 4 days | |
Polyurethanes | Minimum | 22 hours | 14 hours | 10 hours | 6 hours | 4 hours |
Maximum | 28 days | 28 days | 14 days | 7 days | 4 days |
Curing Time for DFT up to 150 µm (6.0 mils)
Substrate temperature | Dry to handle | Service- water immersion | Full cure |
---|---|---|---|
5°C (41°F) | 15 hours | 10 days | 17 days |
10°C (50°F) | 8 hours | 7 days | 14 days |
20°C (68°F) | 3.5 hours | 5 days | 7 days |
30°C (86°F) | 2 hours | 4 days | 5 days |
40°C (104°F) | 1.5 hours | 3 days | 3 days |
Notes:
Pot Life (at application viscosity)
Mixed product temperature | Pot life |
---|---|
10°C (50°F) | 3 hours |
20°C (68°F) | 1.5 hours |
30°C (86°F) | 45 minutes |
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
PPG SigmaShield 420 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
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.More Information Delivery Info
This thinner has been developed by PPG Protective and Marine Coatings for use with selected paint products.More Information Delivery Info