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Application

Structural steel framing.

Description

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.

General information

Color

White

Guidance for specification option:

various other colours available (see also SIGMCARE shade card)

Finish

Gloss

Material

Acrylic

Uniclass

Pr_35_31_22_79 Solvent-based finishing coatsPrimary

CAWS

G10/630 Galvanizing plus site-applied

G10/635 Thermally sprayed zinc coating plus site-applied

G10/640 Shop painting

G10/650 Site painting

G10/660 Shop plus site painting

M60/12 Gloss paint

M60/18 Special coating

M61/110 On-site coating to primed steel

Specification data - Solvent-based finishing coats

Colour

White

Guidance for specification option:

Various other colours available, consult PPG for details.

Thinner

Not permitted

Required, 21-06

Guidance for specification option:

Suitable for airless and air spray.

Formulation

Solvent borne

Volume solids

55%

Volatile organic compounds

334 g/kg (430 g/L to EC SED 1999/13/EC)

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