Although paint is a popular product choice for enhancing appearance of building exterior and interior, it is worth remembering that paint properties extend beyond its visual impact. Paint coverage and dur...
Assess paint durability
The durability of paint against mechanical exposure is described as washability/wet abrasion/scrub resistance class.
Paint durability is directly linked to the routine maintenance of the surface. The level of washability should ensure that the painted surface can be cleaned easily without damaging its quality.
For a standard living room a paint with washability class 3 will be sufficient. For areas with heavy usage, such as corridor, kitchen, children’s room, bathroom, paints with the washability class 1 or at least 2 should be used.
Classification according to standard testing
- 200washing cycles, <5μm abrasionClass 1Suitable for cleaning with water and natural brush if neutral or hygienic cleaner is added. Applicable for extremely burdened indoor areas such as entrance halls, kitchens, staircases or public buildings.
- 200washing cycles, ≥ 5 μm and < 20 μm abrasionClass 2Suitable for cleaning with water and natural brush if neutral cleaner is added. Applicable for ceilings and walls with heavy usage such as children's and bathrooms.
- 200washing cycles, ≥ 20 μm and < 70 μm abrasionClass 3Suitable for cleaning with water and cloth if neutral cleaner is added. Applicable for ceilings and walls with normal usage such as living rooms.
- 40washing cycles, < 70 μm abrasionClass 4Suitable for cleaning with dry cloth. Applicable for ceilings and walls in living rooms.
- 40washing cycles, ≥ 70 μm abrasionClass 5Applicable for ceilings in living rooms. Resistant to dry wiping.
The paint products with higher washability class tend to be more expensive. Raw material choice and paint formulation both affect the paint product washability standard and their final shelf price.