The fragmented phenomenon of the iron-steel paint

On the film appears white thinly powder, easy to see when rubs up to the area that was painted as chalk dust layer.

REASON
• Use in-house coating system for outdoor construction.
• Use low-quality outdoor paint, paint with low colloidal volume, does not belong to an alkyd resin.
• Ultraviolet radiation in sunlight impacts on paint makes chalking.

ACCIDENT PREVENTION
• Do not use paint indoors to outdoor construction.
• Use outdoor paint with acrylic volume appropriately.
• To comply with construction guidelines.

TROUBLESHOOT
• Scraping the old paint and repainted according to the system: one primer and two coating with acrylic appropriate volume.