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Secondary containment protection - MasterProtect 7800

MasterProtect 7800:

Chemically resistant liner system for use in secondary containment areas for the storage, filling, and handling of potentially water-polluting substances based on polysulfide membrane MasterProtect 1870/1880 from Master Builders Solutions.

The system comprises:

Primer, (see membrane datasheet or system build-up to select primer according to the considered substrate).
Polypropylene-based fleece fixed to the substrate using a polysulfide adhesive.
2Component Polysulfide-based, chemical resistant coating applied in three layers with different identification colors.

Specification

The protection system will show evidence of fulfilling the following characteristics:
Capillary water absorption (EN 1062-3): ≤ 0,1 kg/m² · h^0.5
Water vapor permeability (Sd H2O, EN ISO 7783-1,2): ≤ 5 m (Class I)
Permeability to carbon dioxide (Sd CO2; EN 1062-6): > 50 m
Crack bridging (EN 1062-7 A Static): > A5 (23ºC)
Artificial Weathering (EN 1062-11): Pass
Resistance to severe chemical attack (EN 13529): Reduction in hardness of less than 50%, Class I (7 days with pressure): No defects for Groups 1, 5, 5a, 7, 7a, 9, 10, 11, 12
Chemical resistance acc. Federal Water Act (Wasserhaushaltsgesetz, WHG); Media groups acc. to DIBt respectively EN 13529
- Class L2; 72 hours maximum contact: Valid for groups: 1a, 4, 4a, 5a, 6a, 8a, 15, Gasoline super E10
- Class LAU2; 7 days maximum contact: Valid for groups: 3b, 4c, 7, 7b, 9, 9a, 10, 11, 13, 14