SIGMACOVER 620

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

SIGMAWELD 165

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

PRINCIPAL CHARACTERISTICS

• Suitable for automatic application on shot blasted steel plates
• Fast drying properties
• Good cutting and excellent welding properties, including MIG/MAG welding in various positions (either automatic or manual welding)
• Provides corrosion protection up to 9 months, when applied at a DFT of 13 µm (0.5 mil) (depending on exposure conditions and blasting profile)
• Can be used as a first coat in various paint systems
• Suitable for sea water immersion in combination with controlled cathodic protection  systems
• Excellent thermal stability minimizes heat damage during hot work procedures
• No adherence of weldspatter at surrounding primed surface
• Approved by Lloyd's Register of Shipping for use as a prefabrication primer

• Gray, reddish gray
• Flat

SIGMASHIELD 220

Two-component, reinforced high solids polyamine adduct cured epoxy   primer   PRINCIPAL CHARACTERISTICS

• General-purpose primer for coating systems for steel
• Good abrasion resistance
• Outstanding sea water resistance
• Excellent corrosion resistance
• Good resistance against chemically-polluted water
• Resistant to well designed/controlled cathodic protection

• Yellow/green
• Gloss