BS EN 927-10:2019
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Paints and varnishes. Coating materials and coating systems for exterior wood – Resistance to blocking of paints and varnishes on wood
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 26 |
This document specifies a test method for determining, under specified optional conditions, whether a single-coat film or a multi-coat system of paints and varnishes on wood after a specified drying period is sufficiently dry to avoid damage when two painted surfaces or one painted surface and another surface are placed in contact under pressure and subsequently separated. The method is intended to simulate the conditions when painted articles come into contact which each other. In comparison to EN ISO 9117-2, the conditioning and parameters which influence the behaviour of wood coatings are more specific. NOTE In some countries, the test is called a “block or blocking resistance” test.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Principle 5 Apparatus |
| 9 | 6 Sampling 7 Substrates 7.1 General 7.2 Substrate s1 – Spruce |
| 10 | 7.3 Substrate s2 – Other wood species 7.4 Substrate s3 – Inert substrate 7.5 Substrate s4 – Other plane substrates |
| 11 | 8 Application 8.1 General 8.2 Application to substrate s1 – spruce, s2 – other wood substrates, or substrate s4 – other plane substrates |
| 12 | 8.3 Application to substrate s3 – inert substrate or substrate s4 – other plane substrates 8.4 Typical dry film thickness on stable wood constructions 9 Drying time 10 Preparation of test strips and specimen 10.1 General |
| 13 | 10.2 Determination of the dry film thickness 11 Conditioning of test strips 12 Application of load 12.1 General |
| 14 | 12.2 Load to be applied |
| 15 | 12.3 Climatic conditions during loading |
| 16 | 13 Evaluation |
| 17 | 14 Precision 15 Test report |
| 18 | Annex A (normative)Necessary additional information |
| 19 | Annex B (informative)Suggested form for specifying application parameters B.1 General B.2 Specifying complete coating systems B.3 Equipment B.4 Process B.5 Spreading rate B.6 Flash-off |
| 20 | B.7 Drying and curing B.8 Overcoating intervals B.9 Sanding B.10 Examples for specifying application parameters |
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BS EN 927-10:2019 – TC:2020 Edition
Tracked Changes. Paints and varnishes. Coating materials and coating systems for exterior wood – Resistance…
