Sewer Exposure
Chemical Exposure
Wastewater Collection
Primary Treatment
Secondary Treatment
Using SSPC Coating Material Standards
Table 1 SSPC Environmental Zones
| Zone No. | Characteristics of Service Environment |
| 3A | Chemical atmospheric exposure, acidic (pH 2.0 to 5.0) |
| 3B | Chemical atmospheric exposure, neutral (pH 5.0 to 10.0) |
| 3C | Chemical atmospheric exposure, alkaline (pH 10.0 to 12.0) |
| 3D | Chemical atmospheric exposure, presence of mild solvent fumes. Intermittent contact with aliphatic hydrocarbon solvents (e.g., mineral spirits), lower alcohols, glycols, etc. |
| 3E | Chemical atmospheric exposure, severe. Includes oxidizing chemicals, fumes from strong solvents, extreme pHs, or combinations of these with high temperatures. |
SSPC Coating Standards
| SSPC-Paint 45 | Two-Component, Thick-Film Polyurea and Polyurea/Polyurethane Hybrid Coatings |
Systems
Surface Preparation:
SSPC-SP 10/NACE No. 2 Near-White Metal Blast Cleaning
SSPC-SP 5/NACE No. 1 White Metal Blast Cleaning
Surface Profile: 2.0 – 5.0 mils (Angular)
| Description | Generic Coating Type | Dry Film Thickness (mils) |
| Urethane Elastomeric (1 Coat) | Solvent Free Aromatic Polyurethane Hybrid | 20 – 125 |
| Epoxy / Vinyl Ester / Vinyl Ester | Epoxy Flake Filled / Epoxy Flake Filled Polyamine Cured Epoxy, Solvent Free, Glass Flake Reinforced | 20 – 80 |
| Epoxy / Epoxy Phenolic / Epoxy Phenolic | Solvent Free Novolac Phenolic Epoxy | 16 – 40 |
| Urethane / Urethane | Aromatic Polyurethane | 60 |
| Epoxy Flake Filled / Epoxy Flake Filled | Glass Flake Reinforced Amine Epoxy | 16 – 40 |
| Epoxy / Epoxy 100% solids | Modified Polyamine Ceramic Epoxy | 30 – 50 |
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