Adhesion properties of some protective layers exposed to outside weather conditions for five years

Authors : Mehmet BUDAKÇI, Cihat TAŞÇIOĞLU

Pages : 126-132

Doi:10.3906/tar-1202-24

View : 14 | Download : 11

Publication Date : 2013-02-01

Article Type : Research Paper

Abstract :In this study, the long-term insert ignore into journalissuearticles values(5-year); performances of 2 varnish systems, semitransparent alkyd-based brown stain insert ignore into journalissuearticles values(SABBS); and alkyd-based clear varnish insert ignore into journalissuearticles values(ABCV);, were evaluated on preservative-treated Scots pine insert ignore into journalissuearticles values(Pinus sylvestris L.); sapwood. Prior to varnish application, specimens were impregnated with 2 different types of wood preservative. The experimental variables were varnish type, layer thickness, and wood preservative. ASTM D 1641 was followed for exposing wood specimens to outdoor conditions. The effects of long-term exposure on adhesion properties of applied varnish systems were tested according to ASTM D 4541. Long-term outdoor exposure resulted in 4.2% and 33.9% reductions in the adhesion properties of SABBS and ABCV varnish systems, respectively. The layer thickness and preservative type did not show any statistical reductions in adhesion properties.
Keywords : Key words Adhesion strength, ageing, outside weather conditions, wood preservative, varnish, stain