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PPG SigmaCover 525

Now known as SigmaCover 555 a two-component, polyamide-cured anticorrosive, antifouling, water-resistant epoxy tie-coat ideal for underwater systems.

  • Colour: Black, grey
  • Gloss Level: Eggshell
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PPG LogoPPG SigmaCover 525

PPG SigmaCover 525 – now known as PPG SigmaCover 555 – is a two-component, polyamide-cured anticorrosive, antifouling, water-resistant epoxy tie-coat ideal for underwater systems.

 

Product Features and Benefits

  • Final coat in epoxy underwater anticorrosive systems
  • Excellent water resistance
  • Epoxy anticorrosive with excellent adhesion for antifoulings
  • Good abrasion and impact resistance
  • Colours:Black, grey
  • Gloss level: Eggshell

 

Method of Application

  • Air spray
  • Airless spray
  • Brush/Roller

Note:

Adequate ventilation must be maintained during application and curing (please refer to Information Sheets 1433 and 1434 available on request).

In exceptional cases SigmaCover 555 may be applied at lower substrate temperatures (down to -15°C (5°F)) provided that the surface is free from ice and other contamination. In such cases special care must be taken to avoid thick film application as this may lead to checking/crazing or solvent entrapment. It should be clear that application at lower temperatures will require additional thinning to obtain application viscosity, however this will affect the sag resistance of the applied coating and can induce solvent retention. Optimal curing and designed product properties will only be achieved when minimum required substrate temperature is reached.

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

 

Overcoating

PPG SigmaCover 555 (formerly PPG SigmaCover 525) can be overcoated with PPG antifouling coatings. Please contact us for details of suitable products.

 

Note:

Surface should be dry and free from any contamination.

 

Thinner

Air Spray: PPG Thinner 91-92
Volume of Thinner: 0 – 5% depending on required thickness and application conditions.

Airless Spray: PPG Thinner 91-92
Volume of Thinner: 0 – 5% depending on required thickness and application conditions.

Brush/Roller: PPG Thinner 91-92
Volume of Thinner: Up to 5% can be added if desired.

Refer to product Data Sheet for further details.

 

Cleanup

PPG Thinner 90-53

 

Safety Precautions

  • Adequate ventilation must be maintained during application and curing (please refer to Information Sheets 1433 and 1434)
  • For paint and recommended thinners see Information Sheets 1430, 1431 and relevant Material Safety Data Sheets
  • 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 1.4 kg/l (11.7 lb/US gal)
Volume solids 56±2%
VOC (Supplied) Directive 1999/13/EC, SED: max. 276.0 g/kg max. 387.0 g/l (approx. 3.2 lb/US gal)
Recommended dry film thickness 75 – 150 μm (3.0 – 6.0 mils) depending on system
Theoretical spreading rate 7.5 m2/l for 75 μm (299 ft2/US gal for 3.0 mils) 3.7 m2/l for 150 μm (150 ft2/US gal for 6.0 mils)
Dry to touch 6 hours
Overcoating Interval Minimum: 8 hours; Maximum: 3 days
Full cure after 7 days
Shelf life Base: at least 24 months when stored cool and dry. Hardener: at least 24 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