Effect of coatings on the durability of birch and spruce plywood: Part 1: Weathering performance

Antti Nurmi, Hannu Viitanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

Several different coated birch and spruce plywood types were investigated in Finland using outdoor weathering. The weather performance of the tested coated birch plywood was good compared with uncoated birch and spruce plywood. The paint base film coated and painted birch plywood performed well in outdoor testing at VTT's test site. Phenol film coated plywood was sensitive to UV light, but only a little cracking and mould growth was found after several years outdoor weathering. Edge sealing with acrylate paint protected well the plywood specimens during the exposure. Moisture content of coated birch plywood was less variable and it did not exceed the critical level needed for the early development of decay. The overall results clearly show that birch plywood is better substrate for film coatings.
Original languageEnglish
Title of host publicationThe 41st Annual Meeting of International Research Group on Wood Protection
Subtitle of host publicationBiarritz, France, 9-13 May 2010
Number of pages7
Publication statusPublished - 2010
MoE publication typeNot Eligible
Event41st Annual Meeting of IRG-WP International Research Group on Wood Protection - Biarritz, France
Duration: 9 May 201013 May 2010

Conference

Conference41st Annual Meeting of IRG-WP International Research Group on Wood Protection
CountryFrance
CityBiarritz
Period9/05/1013/05/10

Keywords

  • Coatings
  • plywood
  • weathering
  • cracking
  • resistance
  • assessments

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    Nurmi, A., & Viitanen, H. (2010). Effect of coatings on the durability of birch and spruce plywood: Part 1: Weathering performance. In The 41st Annual Meeting of International Research Group on Wood Protection: Biarritz, France, 9-13 May 2010 [IRG/WP 10-40526] https://www.irg-wp.com/irgdocs/details.php?481dfff3-2e49-ec52-475f-0c757bc5d754