SIGMAZINC™ 158
Two-component, moisture-curing zinc (ethyl) silicate primer
- 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 500°C (930°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
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SIGMAZINC™ 158 is two-component zinc (ethyl) silicate anticorrosive primer for structural steel. It uses galvanic action to eliminate sub-film corrosion and can withstand substrate temperatures from –90°C (–130°F) up to 500°C (930°F) under normal atmospheric exposure. It also offers good low-temperature curing, impact, and abrasion resistance.