SIGMASHIELD 220

SIGMAZINC 158

Two-component, moisture-curing zinc (ethyl) silicate  primer  

PRINCIPAL CHARACTERISTICS

• Certificate for ASTM A-490 class 'B' for slip coefficient
• Complies with the compositional requirements of SSPC-Paint 20, Level 2
• Anticorrosive primer for structural steel
• Suitable as a system primer in various paint systems based on unsaponifiable binders
• Galvanic action eliminates sub-film corrosion
• Can withstand substrate temperatures from –90°C (–130°F) up to 400°C (750°F), under normal atmospheric exposure conditions
• When suitably topcoated provides excellent corrosion protection for steel substrates up to 540°C  (1000°F)
• Good low-temperature curing
• Good impact and abrasion resistance
• Must not be exposed to alkaline (more than pH 9) or acidic (less than pH 5.5) liquids

• Gray, greenish gray
• Flat

SIGMARINE 24

Modified zinc phosphate alkyd  primer   PRINCIPAL CHARACTERISTICS

• Economical, general-purpose maintenance and new-building primer
• Suitable for use on superstructures and on steel surfaces not normally exposed to water immersion
• The adhesion of subsequent coats is not affected by long weathering periods of the primer
• Should not be used over zinc primers, except when exposed to dry interior  conditions
• To be recoated with conventional paint systems
• A thickness of 75 µm (3.0 mils) can be obtained by spray application in one operation by means of the cross-coat   technique

• Yellow, brown, red, gray, dark gray (offwhite only on request)
• Flat

SIGMACOVER 620

Two-component, surface-tolerant, high-build, polyamide-cured epoxy primer/coating   PRINCIPAL CHARACTERISTICS

• Excellent corrosion resistance
• Good flexibility
• Surface tolerant coating for lower grade of steel preparation
• Good drying and curing property
• Easy application by different application methods such as airless spray, brush
• Low temperature version available if required

• Gray, off-white (other colors available on request)
• Aluminum colors (dark gray, light gray)
• Eggshell