Application of fire-retardant paint PLAMCOR-4
Surface preparation before applying the fire-retardant composition
Prior to application, the surface shall be primed and thoroughly cleaned of all dust, traces of dirt, scale, rust, oil, bitumen stains, moisture, etc.
Preparation for the composition application
Before the application, the fire retardant shall be thoroughly mixed with water in a ratio of 1:1.1-1.5 by weight, as specified by GOST 23732. While stirring, the measured liquid is added to the dry mixture. The mixture is processed in a mechanized mixer for 5-8 minutes until a homogeneous mass is obtained. It shall be soaked for 10 minutes and the process shall be repeated for 1 to 2 minutes.
The solution shall have the specified mobility during the shelf life (approximately 60 minutes from gauging).
Application of fire-retardant coating
PLAMCOR-4 shall be applied at ambient air temperature not lower than +5 °C and air humidity not higher than 75%. The prepared structures shall be protected from atmospheric precipitation.
Fire-retardant application can be achieved manually (with a spatula) or by mechanical means (using plastering machines such as CO-150, CO-42 or their equivalents). The number of layers depends on the required fire-retardant efficiency group.
The thickness of one plaster layer shall not exceed 15 mm.
The average dry mix consumption is 0.45 kg/m² per 1 mm of coating.
Use a reinforcing net for surfaces subjected to vibration, alternating loads, and/or significant temperature deformations to prevent coating failure. It is a composition of carbon and glass fiber with a mesh size of 20 to 60 mm.
The time of interlayer drying is at least 12 hours. Complete curing of the plaster mixture requires at least 28 days. Avoid mechanical contact with the coating during this time.