ISO 2812 discusses paints and varnishes. ISO 2812-2 is the second part of the ISO 2812 multi-series and discusses the resistance of coating materials to liquids. Other than the sun and wind, rain and snow can also affect exterior paints of structures. The water resistance of coatings determines the durability of coatings in exterior conditions.
ISO 2812-2 specifies the water immersion method for paints. This determines the resistance of an individual-layer or multi-layer system of coating materials to the effects of water by partial or full immersion.
ISO 2812-2 on paints and varnishes (determination of resistance to liquids) is useful for:
Water can cause the degradation of coatings, so determination coating resistance to water is helpful in predicting its service life. ISO 2812-2 provides a method for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of water by partial or full immersion.
This water immersion method for paints described in ISO 2812-2 enables the determination of the effects of water on the coating and, if necessary, the assessment of the damage to the substrate. ISO 2812-2 helps you manufacture high-quality paint coatings that have good resistance to water and improved service life.
BS EN ISO 2812-2:2018 supersedes BS EN ISO 2812-2:2007, which is withdrawn. BS EN ISO 2812-2:2018 includes some technical changes with respect to BS EN ISO 2812-2:2007. These include:
EN ISO 2812-2:2018
ISO 2812-2:2018