Assessment of compatibility of metal fire-proof compositions with primer coatings to maximize effectiveness of flame retardants

Introduction. The present paper considers the issues of work planning for fire protection of steel structures, including the correct selection of primer coating in order to avoid potential problems, to save time and budget, as well as to ensure long-term durability of the structures due to the applied fire protection coating. The compatibility of materials appears to be essential when creating projects and coating technology to maximize the effectiveness of fire-proof materials.

Aim. To establish the relevant requirements for the scope and sequence of work in assessing the compatibility of fire-proof compositions with the applied primer of steel structures.

Materials and methods. The compatibility of flame retardants with primers was assessed using certified and verified laboratory equipment. The paper describes a modern laboratory facility for testing.

Results. The results of testing compatibility of flame retardants with primers are presented. The coating system should be evaluated for the defects, its criticality in the subsequent operation, the degree of coating interlayer adhesion, and the ability of the coating to resist adverse environmental effects. Following the obtained information, recommendations are given on the compatibility of certain coating materials.

Conclusion. The study demonstrated the significance of material  compatibility when creating projects and coating application technology to ensure maximum effectiveness of flame retardants and to tackle the crucial task — providing long-term fire resistance of structures.

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