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PPG SigmaCover 400 Aluminium

A two-component, aluminium containing, high solids epoxy coating suitable for a wide range of substrates and surface preparations.

  • Colour: Aluminium
  • Gloss Level: Semi-gloss
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PPG LogoPPG SigmaCover 400 Aluminium

PPG SigmaCover 400 Aluminium (Amerlock 400 AL) is a two-component, aluminium containing, high solids, low VOC epoxy coating suitable for a wide range of substrates and surface preparations.

Product Features and Benefits

  • Aluminium containing surface tolerant maintenance coating
  • Compatibility with a wide range of substrates and surface preparations
  • High solids, low VOC
  • Can be overcoated with a wide range of topcoats
  • Good adhesion on most existing coatings
  • Good resistance to splash and spillage of chemicals
  • Colour: Aluminium
  • Gloss level: Semi-gloss


Method of Application

  • Air spray
  • Airless spray
  • Brush/Roller


When applying by brush, apply evenly using a clean, well-loaded brush. Application by brush or roller will provide approximately 80 μm (3.1 mils) DFT in a single-coat application.

Drying times are dependent on air and steel temperature, applied film thickness, ventilation and other environmental conditions.


Please refer to the product Data Sheet for surface preparation, mixing and application instructions or contact us.



This product can be overcoated with itself or a number of polyurethanes. Please contact us for suitable topcoats for PPG SigmaCover 400 Aluminium.



Volume of Thinner

Air Spray

0 – 10% depending on required thickness and application conditions.


Airless Spray

No extra thinner needed.


Refer to product Data Sheet for further details or contact us for free technical advice.




Safety Precautions

  • Adequate ventilation must be maintained during application and curing
  • 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

Please refer to the product Data Sheet and Material Safety Data Sheets for full details regarding the safe use of this product.


Contact Us

For further advice regarding the use of this product, technical support or a quotation please contact us.

Basic Data at 20°C (68°F) for mixed product:

Number of components Two
Mass density 1.3 kg/l (10.8 lb/US gal)
Volume solids 85 ± 2%
VOC (Supplied) Directive 1999/13/EC, SED: max. 157.0 g/kg max. 150.0 g/l (approx. 1.3 lb/US gal)
Recommended dry film thickness 125 μm (5.0 mils) per coat
Theoretical spreading rate 6.8 m2/l for 125 μm (273 ft2/US gal for 5.0 mils)
Dry to touch 6 hours
Overcoating Interval Minimum: 16 hours. See overcoating tables
Full cure after 7 days
Shelf life Base: at least 36 months when stored cool and dry. Hardener: at least 36 months when stored cool and dry
Pot life 4 hours at 20°C (68°F)

Please refer to the Data Sheet for additional technical data.

Download Datasheet