Ageing brushes are divided into three different categories:
• resined ageing brushes,
• stainless steel ageing brushes,
Whereas resined brushes are suitable for the treatment of hard materials,
stainless steel brushes are designed to remove dirt from cracks before treating surfaces with putty to ensure perfect adherence. Resined brushes are composed of the following grains: 16, 24, 36, 45, 60, 80, 100, 120, 180, 220, 320, and 400. Cleaners are for cleaning corrosive materials.