Inorganic Zinc Silicate Primer is a two-component, moisture curing zinc (ethyl) silicate coating designed to provide excellent cathodic protection to steel surfaces. This primer complies with SSPC Paint 20 specifications and is available in Level 1 and Level 2 zinc content. It offers outstanding resistance to corrosion, heat, solvents, and harsh industrial environments. Inorganic zinc silicate primers are widely used as shop primers and maintenance primers for structural steel, power plants, refineries, bridges, offshore structures, and heavy engineering applications.
| Sr. No | Product | Description | DFT (µm) | Colour | Finish | Mixing Ratio | Drying / Curing | Applications |
|---|---|---|---|---|---|---|---|---|
| 1 | SIGMAZINC 158 | Inorganic zinc silicate primer complying with SSPC Paint 20 Level 2, providing excellent cathodic protection. | 75 | Grey / Greenish Grey | Flat | 81 : 19 |
Touch dry: 30 min @20°C Overcoating: 6 hrs @30°C Shelf life: Unlimited |
Structural steel, refineries, power plants, bridges, high-temperature industrial environments |
| 2 | SIGMAZINC 9 | Two component moisture curing (ethyl) silicate zinc primer complying with SSPC Paint 20 Level 1. | 50–100 | Grey / Greenish Grey | Flat | 77 : 23 |
Touch dry: 20 min @30°C Overcoating: 18 hrs @30°C Shelf life: Unlimited |
Heavy-duty steel structures, offshore platforms, refineries and industrial plants |
| 3 | Apcosil 610 / Apcosil 605 Z 85 | Inorganic zinc ethyl silicate coating (SSPC Paint 20, Level 1) | 50–75 | Grey | Matt | 40 : 60 (by weight) |
Touch dry: 30 min Curing: 16 hrs |
Structural steel, industrial plants, corrosion protection |
| 4 | Apcosil 605 | Inorganic zinc ethyl silicate coating (SSPC Paint 20, Level 2) | 50–75 | Grey | Matt | 40 : 60 (by weight) |
Touch dry: 30 min Curing: 8 hrs |
Heavy duty steel structures and industrial corrosion protection |
| 5 | Apcosil 605 / Apcosil 605 IZSS | Inorganic zinc ethyl silicate coating | 50–75 | Grey | Matt | 1 : 1 |
Touch dry: 30 min Curing: 16 hrs |
Marine, offshore, refinery and structural steel protection |
