SIGMACOVER 280

SIGMACOVER 280

SIGMACOVER 280

Product catalog summary
Description: SIGMACOVER™ 280 is a universal epoxy anticorrosive primer based on pure epoxy technology, suitable for various marine and industrial applications including ballast tanks, decks, topside, superstructure, hull, and cargo oil tanks.
Principal Characteristics: The primer offers good adhesion to steel and non-ferrous metals, excellent water and corrosion resistance, and cures at temperatures as low as 5°C (41°F). It is compatible with a wide range of overcoatings and suitable for touching up weld seams and damages during construction.
Color and Gloss Level: Available in yellow/green and optionally redbrown, with an eggshell gloss level.
Basic Data at 20°C (68°F): The product is a two-component system with a mass density of 1.3 kg/l and volume solids of 57 ± 2%. The recommended dry film thickness ranges from 50 to 100 µm, with a theoretical spreading rate of 11.4 m²/l for 50 µm thickness.
Recommended Substrate Conditions and Temperatures: For immersion exposure, steel should be blast cleaned to ISO-Sa2½ standards. Atmospheric exposure requires steel to be cleaned to ISO-Sa2½ or ISO-St3 standards. Concrete surfaces should be prepared according to ASTM standards.
System Specification: The product is part of several anticorrosive systems for underwater, boottop, topside, decks, superstructure, interiors, ballast tanks, and cargo holds.
Instructions for Use: The mixing ratio is 80:20 by volume (base to hardener). The pot life is 8 hours at 20°C. Application methods include air spray, airless spray, and brush/roller, with specific recommendations for thinner use and nozzle specifications.
Additional Data: Overcoating intervals and curing times vary with temperature, with full cure achieved in 7 days at 20°C. Pot life decreases with increasing temperature.
Safety Precautions: The product is solvent-borne, requiring precautions to avoid inhalation and skin contact. Refer to safety data sheets for detailed information.
Worldwide Availability: PPG aims to supply the same product globally, with modifications as necessary to comply with local regulations.
Limitations of Liability: PPG disclaims liability for indirect, special, incidental, or consequential damages related to product use. Users must determine the product's suitability for their specific applications.
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Catalog excerpts

SIGMACOVER 280-1

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) DESCRIPTION Universal epoxy anticorrosive primer, based upon pure epoxy technology PRINCIPAL CHARACTERISTICS • Universal epoxy primer system suitable for Ballast Tanks, Decks, Topside, Superstructure, Hull and Cargo Oil Tanks • General-purpose epoxy primer in protective coating systems for steel and non-ferrous metals • Good adhesion to steel and galvanized steel • Good adhesion to non-ferrous metals • Good flow and wetting properties • Good water and corrosion resistance • Cures at temperatures down to 5°C (41°F) • Suitable for touching up of weld seams and damages of epoxy coatings during construction • Excellent recoatability • Can be overcoated with most alkyd-, chlorinated rubber-, vinyl-, epoxy- and two-component polyurethane coatings • Suitable on wet blast cleaned substrates (damp or dry) • Compatible with well-designed cathodic protection systems COLOR AND GLOSS LEVEL • Yellow/green (redbrown on request) • Eggshell SB PPG Protective & Marine Coatings Bringing innovation to the surface!”

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SIGMACOVER 280-2

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) SIGMACOVER™ 280 Data for mixed product Shelf life Base: at least 24 months when stored cool and dry Hardener: at least 24 months when stored cool and dry Notes: - See ADDITIONAL DATA – Spreading rate and film thickness - See ADDITIONAL DATA – Overcoating intervals - See ADDITIONAL DATA – Curing time RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES Immersion exposure • Steel or steel with not approved zinc silicate shop primer; blast cleaned (dry or wet) to ISO-Sa2½, blasting profile 30 - 75 µm (1.2 – 3.0 mils) • Steel with approved...

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SIGMACOVER 280-3

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) Concrete / Masonry • Remove grease, oil and other penetrating contaminants according to ASTM D4258 • Abrade the surface per ASTM D4259 to remove all chalk and surface glaze or laitance. Achieve surface profile - ICRI CSP 3 to 5 • AMERCOAT 114 A may be used as a pit filler for certain applications. Check with PPG Technical Service for guidance on chemical resistance • Maximum recommended moisture transmission rate is 3 lbs / 1,000 ft2 / 24 hours by moisture transmission test (ASTM F1869, calcium chloride test or by ASTM D4263, plastic...

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SIGMACOVER 280-4

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) Air spray Recommended thinner THINNER 91-92 Volume of thinner 0 -10%, depending on required thickness and application conditions Nozzle orifice 1.5 - 2.0 mm (approx. 0.060 - 0.079 in) Nozzle pressure 0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.) Airless spray Recommended thinner THINNER 91-92 Volume of thinner 0 -10%, depending on required thickness and application conditions Nozzle orifice Approx. 0.46 mm (0.018 in) Nozzle pressure 15.0 MPa (approx. 150 bar; 2176 p.s.i.) Recommended thinner No extra thinner is necessary Volume...

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SIGMACOVER 280-5

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) ADDITIONAL DATA Note: Adequate ventilation must be maintained during application and curing (please refer to INFORMATION SHEETS 1433 and 1434) SB PPG Protective & Marine Coatings Bringing innovation to the surface!”

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SIGMACOVER 280-6

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) SAFETY PRECAUTIONS • 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 vapor, as well as contact between the wet paint and exposed skin or eyes WORLDWIDE AVAILABILITY It is always the aim of PPG Protective and Marine Coatings to supply the same product on a worldwide basis. However, slight modification of the product is sometimes necessary to comply with local or national rules/circumstances....

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SIGMACOVER 280-7

PRODUCT DATA SHEET April 10, 2017 (Revision of March 24, 2017) LIMITATIONS OF LIABILITY IN NO EVENTWILL PPG BE LIABLE UNDERANYTHEORY OF RECOVERY (WHETHER BASED ON NEGLIGENCEOFANY KIND, STRICT LIABILITY OR TORT) FOR ANYINDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN ANYWAY RELATED TO, ARISING FROM, OR RESULTING FROM ANY USE MADE OF THE PRODUCT. The information in this sheet is intended for guidance only and is based upon laboratory tests that PPG believes to be reliable. PPG may modify the information contained herein at any time as a result of practical experience and continuous product...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.