Application of various solvent-type alkyd resins cedar woods

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Application of various solvent-type alkyd resins to pine and cedar woods for achieving water repellence

Abstract
Purpose – The objective of this study is to evaluate the water repellent efficiency of some oil modified solvent-type alkyd resins, as wood protective
formulations (WPs). It was done by surface treating of pine and cedar woods with the five leading brand of alkyd resins that are available in Turkey.
Design/methodology/approach – For effective water repellency, various formulations were made by incorporating different concentrations of
varnish resin, pigment, solvent, and a substance that repels water. The impact and adhesive strengths of the five different solvent-type alkyd resins
were characterised by using a very simple experimental design.
Findings – The swelling variations of unmodified pine and cedar woods were determined in water. Next, the water repellent efficiency of the five
different alkyd resin formulations was evaluated. The modification of pine and cedar woods using alkyd resins showed various level enhancement of
resistance against water over the unmodified samples. The modification caused a chemical linkage between surface and resin that led to ensuring the
intrinsically chemical bonds across the wood/resin matrix interface, which was the main cause to the improved water resistance. However, some WPs
were less compatible, hence, had less bonding potential to both woods.
Practical implications – The method developed provided a simple and practical solution to selecting WPs (brands) for pine and cedar woods.
Originality/value – The method for evaluating adhesive strengths of the five different brand solvent-type alkyd resins to pine and cedar woods were
novel and could find numerous applications in surface coating.

Keywords Resins, Wood, Surface treatment, Physical properties of materials

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