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PPG SigmaFast 20 Anti-Corrosive Primer | 500+ Colours Available
PPG SigmaFast 20 Anti-Corrosive Primer | 500+ Colours Available

PPG SigmaFast 20

7155
PPG3973

PPG SigmaFast 20 is a high-build zinc phosphate primer based on modified alkyd resin, with good anticorrosive properties under atmospheric conditions. The primer can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.

  • Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
  • Fast drying (as low as 45 minutes) - Fast handling
  • Recoatable with most one- and two-component coatings
  • Suitable for atmospheric exposure conditions - Lead- and chromate free
  • See below for more information on surface preparation, application details and curing times

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Description

PPG SigmaFast 20, a high-build zinc phosphate primer, based on modified alkyd resin, with good anticorrosive properties under atmospheric conditions. The primer is fast drying and recoatable with most one-and two-component coatings, and can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.

Features & Benefits


  • Available in 2,600+ colours, inc. RAL, BS, NCS & the new NCS 2050 colours
  • Good anticorrosive properties under atmospheric conditions
  • Fast drying - as low as 45 minutes
  • Fast handling
  • Recoatable with most one- and two-component coatings
  • Suitable for atmospheric exposure conditions
  • Lead- and chromate free
  • Can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments
  • See below for more information on surface preparation, application details and curing times

 

Reference Colour Size Gloss Level
261714 Grey 5 litres Flat
261715 Grey 20 litres Flat
312468 Off White 5 litres Flat
199088 Red Brown 5 litres Flat
178249 Red Brown 20 litres Flat
181054 Traffic Grey A (RAL 7042) 20 litres Flat
219208 RAL & BS colours 5 litres Flat
204826 RAL & BS colours 20 litres Flat

Product Data


High-build zinc phosphate primer, based on modified alkyd resin.

Data for mixed product at 20°C (68°F)
Number of components One
Mass density 1.5 kg/l (12.5 lb/US gal)
Volume solids 55 ± 2%
VOC (Supplied) Directive 1999/13/EC, SED: max. 258.0 g/kg
UK PG 6/23(92) Appendix 3: max. 382.0 g/l (approx. 3.2 lb/US gal)
Recommended dry film thickness 50 - 75 µm (2.0 - 3.0 mils) per coat
Theoretical spreading rate 7.3 m²/l for 75 µm (294 ft²/US gal for 3.0 mils)
Dry to touch 15 minutes
Overcoating Interval Minimum: 45 minutes
Full cure after 7 days
Shelf life 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

Substrate conditions

  • Steel; blast cleaned to ISO-Sa2½ for excellent corrosion protection
  • Steel; blast cleaned to ISO-Sa2½
  • Steel; power tool cleaned to min. ISO-St2
  • Shop primed steel; sweep blasted or power tool cleaned to SPSS-Ss or SPSS-Pt2

 

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

Stir well before use

  • The temperature of the paint 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
  • 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)

 

Air Spray


Recommended thinner

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

  • 0.4 MPa (approx. 4 Bar; 51 p.s.i.)

 

Airless Spray


Recommended thinner

Volume of thinner

  • 0 - 5%, depending on required thickness and application conditions

Nozzle orifice

  • Approx. 0.38 – 0.48 mm (0.015 – 0.019 in)

Nozzle pressure

  • 12.0 - 16.0 MPa (approx. 120 - 160 bar; 1741 - 2321 p.s.i.)

 

Brush/roller


Recommended thinner

Volume of thinner

  • 0 – 2%

 

Cleaning Solvent


  • Thinner 21-06

Overcoating interval for DFT up to 75 µm (3.0 mils)


Overcoating with... Interval 10°C (50°F) 15°C (59°F) 20°C (68°F)
Two-component products: SIGMACOVER 456, SIGMACOVER 435 or SIGMADUR 520 Minimum 12 hours 10 hours 8 hours
Maximum Unlimited Unlimited Unlimited
Alkyd-based products (e.g. SIGMAFAST 20 and SIGMAFAST 40) Minimum 1.5 hours 1 hour 45 minutes
Maximum Unlimited Unlimited Unlimited

Notes:

  • Surface should be dry and free from any contamination

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 vapouur, as well as contact between the wet paint and exposed skin or eyes

References


Product Details
3973-857977

Data sheet

Manufacturer
PPG
For Use On
Steel
Application Method
Brush, Roller, Spray
Sheen
Flat
Colour
Fully Tintable
Single, Two or Three Pack
Single
Pack Size
5L, 20L
Parts
One
Base Type
Solvent-borne
Solvent
Zinc phosphate
Mixing Ratio
-
Suitable Substrates
Steel
Key Features
Good anticorrosive properties under atmospheric conditions; Can be specified as a single coat, direct-to-metal system for ISO 12944 C1 and C2 environments.
Touch Dry (at 20°C)
15 minutes
Dry to Handle (at 20°C)
-
Dry to Recoat (at 20°C)
45 minutes
Fully Cured (at 20°C)
7 days
Pot Life (at 20°C)
-
Coverage
7.3 m²/l for 75 µm (294 ft²/US gal for 3.0 mils)
Recommended Thinner/Cleaner
THINNER 21-06
Unit Contents
-
Compatible Primers
-
Compatible Topcoats
Most one-and two-component coatings
Max. Application Temperature
-
Min. Application Temperature
5°C (41°F)
Density
1.5 kg/l (12.5 lb/US gal)
Solids by Volume
55 ± 2%
Heat Resistance (up-to)
-
VOC
Directive 1999/13/EC, SED: max. 258.0 g/kg UK PG 6/23(92) Appendix 3: max. 382.0 g/l (approx. 3.2 lb/US gal)
Shelf Life (from date of manufacture)
At least 24 months when stored cool and dry
UN Number
UN1263
Base Type
Solvent-Based
Base Type
Alkyd
Suitable For Use On
Steel
Suitable For Use On
Shop Primed Steel
Finish
Flat
Application Method
Brush
Application Method
Roller
Application Method
Spray
Usages
Zinc Phosphate
Usages
High Build
Usages
Atmospheric
Usages
Anti-Corrosive
Product Usage Type
Primer
Product Range
SigmaFast
Colour Family
Neutral
Colour Family
Anthracite Grey
Colour Family
Cream
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
Colour Family
Black
Colour Family
White
Dry to Recoat (@ 20-25°C)
45 mins
Attachments
Download


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.

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IMPORTANT SHIPPING & DELIVERY INFORMATION

PPG SigmaFast 20 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