PPG SIGMADUR 550

Gloss, two pack, aliphatic polyurethane topcoat

• For shop or site application.
• Excellent resistance to atmospheric conditions.
• Gloss and colour retention: Up to ten years.
• Resistant to a range of corrosive and marine environments. Suitable for use in environments C1–C5 (to ISO 12944) with suitable primer and intermediate coat.
• Easily cleaned.
• Easily recoated.
• Gloss finish in RAL and BS colours.
• Contains isocyanates: Use SigmaDur 540 where isocyanate content is inappropriate.
• Suitable for use as a top coat for intumescent systems in environments C1–C5 (to ISO 12944).

Preparation:

• Suitable for application over PPG Protective & Marine Coatings primers and intermediate coats; SigmaCover 280, SigmaFast 278, SigmaZinc 109 HS, SigmaCover 435 and SigmaCover 456.
• Product is supplied as two packs in correct proportions for use.
• Air temperature 0–40ºC. Surface temperature -5–40ºC. Surface temperature must exceed dew point by 3ºC.
• Drying times vary with environmental conditions. Indicative: At 20ºC a coat can be touch dry in one hour, dry to handle in six hours. Consult manufacturer.
• Application: Airless or conventional spray, brush or roller. Brush or roller application may require additional coats.
• Check coating thickness using non destructive dry film thickness metre, e.g. Mikrotest or Elcometer.

Overcoating:

• More than one coat may be required for full opacity.
• Recoatable after six hours at 20ºC

Site safety, warranties, limited liability:

Consult manufacturer's information.