What is ISO 7784-2- Abrasive rubber rotating test standard about?
The abrasion resistance of hard materials makes these materials particularly suited for harsh situations such as earthmoving, mining, rock drilling, etc. where contact with abrasive materials is involved. It is very important in the construction of floors, roads, or pavements. Abrasion resistance is particularly dependent on good curing but also relies upon other factors including materials and surface finishing, aggregate hardness, mix proportions, aggregate/paste bond, and placing and compaction. ISO 7784-2 specifies a method for determining the resistance to abrasion of coatings, for which two loaded, freely rotatable but eccentrically arranged abrasive rubber wheels affect the coating of the rotating test specimens.
Who is ISO 7784-2- Abrasive rubber rotating test standard for?
ISO 7784-2 on Abrasive rubber rotating test standard is useful for:
- Manufacturers of paints and varnishes
- Product development / innovation / research teams
- Quality control teams
Why should you use ISO 7784-2- Abrasive rubber rotating test standard?
In today’s modern life, nothing can be more annoying than having ugly scratches on a smartphone screen, polished floors, or the new shiny car. This undesirable surface appearance is often caused due to exposure to external elements. Scratches not only greatly reduce the surface aesthetics of a coated product but can lead to premature failure of the substrate (e.g. accelerated corrosion due to substrate exposure). Abrasion resistance is a basic factor in the durability of a coating. Abrasion-resistant coatings are applied to a substrate intended to prevent mechanical damage that can result in surface imperfections. They are widely used to reduce or eliminate wear and thus, extend the lifetime of coated parts. The sections on test specimens, procedure, evaluation, precision, and test report have been discussed in thorough detail in ISO 7784-2. Using ISO 7784-2 guidelines you would be able to determine the resistance to abrasion of coatings using abrasive rubber wheels and rotating test specimen. ISO 7784-2 guidelines enable you to provide your customers with suitable, reliable, and high-quality products.
What’s changed since the last update?
BS EN ISO 7784-2:2016 supersedes BS EN ISO 7784-2:2006. BS EN ISO 7784-2:2016 includes some technical changes with respect to BS EN ISO 7784-2:2006. These include:
- The title has been changed
- The terms and definitions clause has been amended
- A figure explaining the principle of the method was amended
- The supplementary test conditions previously in Annex A have been integrated in the test report
- The calibration of the apparatus previously in Annex B has been deleted
- The test procedure has been re-arranged
