What is BS EN 927-2 – Performance specification for coating systems on exterior wood about?
BS EN 927-2 discusses paints and varnishes. BS EN 927-2 addresses performance criteria for coating systems on exterior wood. Performance requirements are specified according to three categories of end use (defined in BS EN 927-1) in terms of two mandatory tests namely natural weathering performance testing carried out in accordance with BS EN 927-3, and water permeability in accordance with BS EN 927-5. Additional optional tests (non-mandatory) are tabled which may be used by suppliers, or for specification purposes, to provide additional information, to a standardized format, on aspects of performance relevant to specific situations. The majority of test methods are drawn from BS EN 927 (all parts), but where relevant additional tests from other national and international sources are used. Requirements for claiming conformity with BS EN 927-2 are defined and provide flexibility for different situations and can also provide a basis for certification.
Who is BS EN 927-2 - Performance specification for coating systems on exterior wood for?
BS EN 927-2 on coating system is useful for:
- Coating material manufacturers
- Coating material suppliers
- Paints manufacturers
- Quality control department
Why should you use BS EN 927-2 - Performance specification for coating systems on exterior wood?
BS EN 927-2 addresses the issue of terminology for the wide variety of exterior coatings for wood that are now available. BS EN 927-2 also provides a framework for communicating information on the suitability of a coating for particular specific end-use categories. Improved communication is beneficial in the removal of technical barriers to trade. However, there remains the problem of comparing products tested, or likely to be exposed, in different climatic regions, and the relevance of tests for different categories of end-use. BS EN 927-2 addresses these issues and sets a limited number of mandatory performance criteria combined with optional tests that can provide additional information to a standardized format.