Application of a Bio-Based Coating for Wood as a Construction Material: Fire Retardancy and Impact on Performance Characteristics

  • Stephanie RensinkEmail author
  • Michael F. Sailer
  • Roy J. H. Bulthuis
  • Mieke A. R. Oostra
Conference paper


The use of living micro-organisms as a protection method on surfaces of wooden building components becomes more common. Since wood is one of the relevant building materials to be used in a circular economy, fire safety and environmental issues are relevant aspects. Up to now, there is little experience in their potential contribution to fire-retardancy. This research aimed to get more information of a wood treatment with a so-called biofinish in combination with an ammonium phosphate based fire retardant. This biofinish system is comprised of a linseed oil impregnation and a protective and decorative coating based on the yeast-like fungus Aureobasidium [1]. Initial tests of wood treated with this biofinish and an ammonium phosphate based fire retardant showed positive effects on the fire growth rate index (FIGRA) and the heat release rate (HRR) in an European fire classification as well as in thermogravimetric analysis (TGA) assessments [2]. This is remarkable since linseed-oil is part of the coating formulation and used by the fungus as a nutrient. The behavior of samples treated with an ammonium phosphate based fire retardant and the biofinish was further studied in an one-year exposure test. This test revealed the potential esthetical stability of such a coating. The study resulted in crack formation and leaching of samples treated with ammonium phosphate and biofinish and stood in contrast with the behavior of wood samples treated with biofinish without an ammonium phosphate treatment.


Fire retardant Biofinish Aureobasidium spp. Outdoor performance 


  1. 1.
    Sailer MF, van Nieuwenhuijzen EJ, Knol W (2010) Forming of a functional biofilm on wood surfaces. Ecol Eng 36(2):163–167CrossRefGoogle Scholar
  2. 2.
    Rensink S, van Nieuwenhuijzen EJ, Sailer MF (2018) Effects of wood protecting biofinish and linseed oil on fire behaviour and leachability of the fire retardant. In: Proceedings IRG annual meeting. IRG/WP 18-30728, 16 pGoogle Scholar
  3. 3.
    Bourguignon D (2016) EPRS, European parliament briefing January 2016, closing the loop, new circular economy package. Members Research Service. EN PE573.899Google Scholar
  4. 4.
    European Commission (2011) Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Roadmap to a Resource Efficient Europe. European Commission, Brussels, Belgium. COM 2011 571Google Scholar
  5. 5.
    Gobakken LR, Høibø OA, Solheim H (2010) Mould growth on paints with different surface structures when applied on wooden claddings exposed outdoors. Int Biodeterior Biodegradation 64(5):339–345CrossRefGoogle Scholar
  6. 6.
    Hapuarachchi TD (2010) Development and characterisation of flame retardant nanoparticulate bio-based polymer composites. Ph.D. thesis, Queen Mary University of LondonGoogle Scholar
  7. 7.
    Muñoz I et al (2009) Chemical evaluation of contaminants in wastewater effluents and the environmental risk of reusing effluents in agriculture. TrAC Trends Anal Chem 28(6):676–694CrossRefGoogle Scholar
  8. 8.
    Regulation (EU) 2019/1021 (2019) European Parliament and the Council of the European Union Regulation (EU) 2019/1021 on persistent organic pollutants. Official Journal of the European UnionGoogle Scholar
  9. 9.
    Regulation (EC) No 1907/2006, Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) (2006) Establishing a European Chemicals Agency, amending Directive 1999/45/EC and repealing Council Regulation (EEC) No 793/93 and Commission Regulation (EC) No 1488/94 as well as Council Directive 76/769/EEC and Commission Directives 91/155/EEC, 93/67/EEC, 93/105/EC and 2000/21/ECGoogle Scholar
  10. 10.
    Lowden LA, Hull TR (2013) Flammability behaviour of wood and a review of the methods for its reduction. Fire Science Rev 2(1):4CrossRefGoogle Scholar
  11. 11.
    Rensink S, Klein Rot EAM, Sailer MF (2017) Thermal stability of a wood protective biofinish and the influence of flame retardants on Aureobasidium cells. In: Proceedings IRG annual meeting. IRG/WP 17-30716, 15 pGoogle Scholar
  12. 12.
    Wangaard FF (1979) The hygroscopic nature of wood. Colorado State Univ Fort CollinsGoogle Scholar
  13. 13.
    Stevens R et al (2006) The structure–activity relationship of fire retardant phosphorus compounds in wood. Polym Degrad Stab 91(4):832–841CrossRefGoogle Scholar
  14. 14.
    Ellis W, Rowell R (1989) Flame-retardant treatment of wood with a diisocyanate and an oligomer phosphonate. Wood Fiber Sci 21(4):367–375Google Scholar
  15. 15.
    LeVan S, Collet M (1989) Choosing and applying fire-retardant-treated plywood and lumber for roof designs. General Technical report FPL-GTR-62. Madison, vol 62. WI: US Department of Agriculture, Forest Service, Forest Products Laboratory, 11 pGoogle Scholar
  16. 16.
    Winandy JE (1995) Effects of fire retardant treatments after 18 months of exposure at 150 F (66 C), vol 264. US Dept. of Agriculture, Forest Service, Forest Products LaboratoryGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Stephanie Rensink
    • 1
    Email author
  • Michael F. Sailer
    • 1
  • Roy J. H. Bulthuis
    • 2
  • Mieke A. R. Oostra
    • 3
  1. 1.Chair Sustainable Building Technology & MaterialSaxion University of Applied SciencesEnschedeThe Netherlands
  2. 2.Chair NanobioSaxion University of Applied SciencesEnschedeThe Netherlands
  3. 3.Centre of Expertise Smart Sustainable CitiesUtrecht University of Applied SciencesUtrechtThe Netherlands

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