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PPG / Sigma

Sigma EcoFleet 530

Antifouling Coating · Paint & Coating Systems

Class-certified type (DNV register) · technical data sheet not yet verified

PPG / Sigma Sigma EcoFleet 530 — Paint & Coating Systems.

Specifications

Technical data.reference — unverified

Density2,0 kg/l
Volume solids60 ± 2%
Recommended dry film thickness75 - 150 µm
Theoretical spreading rate8,0 m²/l (75 µm)
Product LineEcoFleet
Coating Typeantifouling
Application Methodairless spray
Dft (µm)200
Voc (g/l)320
Overcoating Interval (h)24
Inspection

Inspector Detail

Common issues

  • Premature fouling from under-application, applying below the specified dry film thickness
  • Blistering or adhesion failure from inadequate surface preparation or an incompatible underlying coat
  • Leaching rate falling off toward the end of the intended service life, especially during idle periods
  • Cracking or flaking from over-thick application in a single coat
  • Print-through or incompatibility staining when overcoating certain older antifouling types

Inspection checklist

  • Verify surface preparation (blast profile, cleanliness) meets specification before application
  • Check wet film thickness during application to achieve the specified dry film thickness
  • Confirm the overcoat window between coats is observed per the product data sheet
  • Inspect final dry film thickness with a calibrated gauge, including a holiday/pinhole check on critical areas
  • Check and log ambient conditions (temperature, humidity, dew point) during application
  • Visually inspect the hull at dry-docking for fouling, blistering or coating loss

Service intervals

Overcoat intervalper the product data sheet - approximately 24 hours for this product, confirm against the current TDS for the batch applied
Typical antifouling service life before renewalcommonly 24-36 months, drydocking-cycle and vessel-activity dependent - confirm against the current product data sheet
In-water hull inspection/cleaningtypically every 6-12 months, per fouling rate and flag/PSC biofouling guidance
Surface preparation (abrasive blast) before reapplicationonce per drydocking cycle, per specification

Critical spares

  • Product-matched thinner/reducer, same manufacturer and correct grade
  • Airless spray tips sized for the coating's viscosity
  • Calibrated wet film thickness / dry film thickness gauge
  • Masking materials for demarcation lines (boot-top, anodes, sea chests)
  • Tie-coat/primer compatible with the specified antifouling scheme, per the system data sheet

Safety

  • Biocide-containing antifouling requires respiratory and skin PPE during application - follow the safety data sheet
  • Solvent vapours from spray application require forced ventilation and elimination of ignition sources
  • Waste paint and rinse water are contaminated with biocide - dispose of per MARPOL Annex V and local yard regulations, never overboard
  • VOC content (around 320 g/l for this product) - confirm local port/yard emission limits before application

Class survey

The coating itself is not normally a class survey item, but class and flag increasingly expect a Biofouling Management Plan/Record Book (per IMO biofouling guidance) recording the product used, application date and DFT achieved; port state control in some regions checks for this documentation rather than the coating's physical condition.

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