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Description
Epoxy tie coat — compatibility bridge for overcoating systems
Did you know
- Sigma Coatings, a brand with heritage dating back to 1722 through Pieter Schoen & Sons, merged in 1972 to form Sigma Coatings, which was later acquired by PPG in 2008. The Sigma Alphagen 230 is part of the broader Sigma Alphagen series of antifouling coatings.
- The Sigma Alphagen 230 is a low friction linear polishing antifouling coating within PPG's Sigma Coatings range, designed for deep-sea vessels. Other Alphagen products include Alphagen 240 and Alphagen 650, which also offer antifouling properties.
- The Sigma Alphagen 230 is chosen for its TBT-free, self-polishing antifouling properties, which provide effective protection against shell and weed fouling for extended periods. It is suitable for high and medium-activity deep-sea vessels such as tankers, bulkers, general cargo, and container ships.
| Model | Volume Solids | Recommended Dry Film Thickness | Theoretical Spreading Rate (for 150 µm DFT) |
|---|---|---|---|
| Sigma Alphagen 230 | 56 ± 2% | 75 - 150 µm (3.0 - 6.0 mils) | 3.7 m²/l (150 ft²/US gal) |
| Sigma Alphagen 240 | 58 ± 2% | 75 - 175 µm (3.0 - 7.0 mils) | 3.9 m²/l (155 ft²/US gal) |
Competitive Models
^WPHA Hempaguard X7
Silicone-hydrogel hybrid antifouling with patented Actiguard technology — flagship, 5,000+ vessels
^WPJP Vinyguard
Fast-drying modified vinyl primer — tie coat between epoxy systems and antifouling
^WPIT Interline 850
Two-component pure epoxy tank coating for crude oil and product tankers
^WPJM Penguard Universal
Versatile two-component epoxy primer for a wide range of vessel areas
^WPCF SEAFLO NEO CF Z
Zinc polymer SPC with improved foul-release characteristics
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Code map
^W P P W │ │ │ └── Model: Sigma Alphagen 230 │ │ └───── Make: PPG / Sigma Coatings │ └──────── Equipment: Paints & Marine Coatings └─────────── System: Deck & Engine Branded Stores