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Description
Two-component epoxy for low-temperature winter construction and maintenance
Did you know
- The Sigma Coatings brand, under which Sigmashield 420 LT is sold, was formed in 1972 through the merger of three companies, including Pieter Schoen & Sons, which began grinding pigments in the Netherlands in 1722. PPG acquired SigmaKalon (which included Sigma Coatings) in 2008.
- The Sigmashield 420 LT is part of the broader Sigmashield range, which offers heavy-duty reinforced epoxy coatings for demanding environments. Within this range, it is positioned as a reinforced high solids polyamine adduct cured epoxy coating, suitable for cargo tanks and as a buildcoat for underwater systems, distinguishing it from products like Sigmashield 880, which is primarily designed for offshore splash zones.
- Sigmashield 420 LT is chosen for its ability to cure at low temperatures (down to -10°C or 14°F), excellent abrasion and impact resistance, and outstanding resistance to seawater, making it suitable for cargo tanks and underwater applications.
| Model | Chemistry | Volume Solids | Recommended Dry Film Thickness (DFT) | Curing Temperature | Primary Use |
|---|---|---|---|---|---|
| Sigmashield 420 LT | Two-component, reinforced high solids polyamine adduct cured epoxy | Not specified in search results | Not specified in search results | Down to -10°C (14°F) | Cargo tanks of bulk/oil carriers, storage tanks, buildcoat for underwater and boottop systems |
| Sigmashield 880 | Two-component, high-build, polyamine adduct-cured epoxy | 85 ± 2% | 150 - 1000 µm (6.0 - 40.0 mils) | Continues to cure when immersed in water | Offshore splash zone maintenance, heavy-duty and corrosive environments, suitable for wet blast or UHPWW cleaned substrates |
| Sigmaprime 1000 | Two-component, multi-purpose epoxy anticorrosive primer, based upon pure epoxy technology | 98 ± 2% | 160 - 400 µm (6.3 - 16.0 mils) | Not specified in search results | Universal epoxy system suitable for all vessel areas, anticorrosive primer |
Competitive Models
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^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 J │ │ │ └── Model: Sigmashield 420 LT │ │ └───── Make: PPG / Sigma Coatings │ └──────── Equipment: Paints & Marine Coatings └─────────── System: Deck & Engine Branded Stores