Your search resulted in 118 documents. Displaying 25 entries per page.
Effect of pretreatment of wood surfaces with a copper monoethanolamine solution on the natural weathering performance of semitransparent stains
2019 - IRG/WP 19-40881
Semitransparent stains for wood products are favored for outdoor applications in Japan because these finishes do not hide the wood grain. However, the photoprotective effects of wood surfaces are low, therefor there is a need to improve the weathering performa…
S Isaji, H Shibui, Y Hirabayashi
Susceptibility of painted wood to discolouring fungi - influence of binder, solvent and surfactant
1992 - IRG/WP 92-3714
Previous studies have shown that the basic composition of paints, without fungicide addition, can significantly contribute to the varying microbial susceptibility of painted wood. Previously, non-weathered water-borne acrylic paints applied to wood without a primer were shown to be more susceptible to mould attack…
J Bjurman, C Herder
Rapid Screening test of potential antimicrobial agents for wood coatings
2018 - RG/WP 18-20644
…effective, it will be tested in a standard top coating (acrylic or alkyd) and applied onto wooden panels for exposure in a growth chamber developed for this exact purpose. In the growth chamber there is a “24-7-365 constant” humidity and temperature as well as a constant spore pressure throughout the chamber.…
J Stenbæk, E Morsing, T Østergaard Jensen
Fungal growth on coated wood exposed outdoors: influence of coating pigmentation, cardinal direction and inclination of wood surfaces
2017 - IRG/WP 17-10896
…south: one solventborne (alkyd based) and one waterborne (acrylic based) both in clear and pigmented versions. Fungal growth visually assessed was compared to fungal enumeration and the influence of exposure time on the main fungal species was studied. Results clearly showed that a lower fungal growth was observed…
L Podgorski, C Reynaud, M Montibus
Development of Potentiometric Enzyme Biosensor for Detection of Permethrin Preservative in Treated Wood
2017 - IRG/WP 17-20628
…article. The transducer contained a plasticiser-free methacrylic-acrylic membrane immobilised with hydrogen ionophore and a lipophilic salt. A poly(2-hydroxyethyl methacrylate) (pHEMA) was used to immobilise carboxylesterase for the detection of permethrin. Linear response range of the biosensor based on the enzyme…
M Nasir Mat Arip, C Tan, Gan Kee Seng
The Comparison of Weathering Resistance of New Generation Wood-Coating Systems
2017 - IRG/WP 17-40789
…was evaluated in artificial weathering conditions. Acrylic-based resin containing three different UV absorbers was applied on oriental beech and scots pine surfaces. Weathering conditions were sustained for 84 days. After the weathering test, the change of color and roughness on the wood surface was measured…
Ö Özgenç, S Durmaz
Bacterial adhesion to selected wood finishes
2017 - IRG/WP 17-40793
A new generation of furniture, including antibacterial surfaces, should adjust to the changing needs of an ageing population. Respectively, determination of bacterial adhesion on wooden surfaces, finished with various wood finishes or coating is an important t…
M Petrič, D Kekec, J Žigon, K Godič Torkar, K Bohinc
Decay resistance variability of European wood species thermally modified by industrial process
2017 - IRG/WP 17-40807
…durable’’ for the four wood species. However, the dispersion of weight loss values, due to the fungal attacks was very important and showed a large variability of the durability of wood which has been treated in a single batch. These results showed that there is a substantial need to develop process control…
K Candelier, L Pignolet, S Lotte, A Guyot, E Cuny, B Bousseau, M-F Thévenon
Evaluation of coating applied in treated wood: experiences in Brazil
2017 - IRG/WP 17-40814
…after eighteen months through standards used to classify paints and varnishes performance under weathering. None of the specimens evaluated, regardless of the forms of exposure or treatment of wood, presented: calcination, blistering and cracking and only three were displaced. All specimens showed decrease in…
M F Natale, J M Vidal
Exterior paint for the future - Will there be any dry-film preservatives left?
2017 - IRG/WP 17-50332
…by surface treatment. The use of various types of exterior paints as a surface treatment is a common way to prolong the durability of the wood. To further protect the painted surface against growth of fungi and algae, dry-film biocides remains an essential part of a high quality exterior paint. In Europe, the use of…
H Jensen, M Sandve, S M Lystvet
Effects of fungal exposure on air and liquid permeability of nanosilver- and nanozincoxide-impregnated Paulownia wood
2016 - IRG/WP 16-30680
Effects of aqueous dispersion of silver and zinc-oxide nano-particles on air and liquid permeability of Paulownia wood exposed to T. versicolor were studied in the present research project. Specimens were also heat-treated at 100 and 150°C and compared with the control…
H R Taghiyari, A Kalantari, M Ghorbani Kookandeh, F Bavaneghi, M Akhtari
Increasing the hardness of wood-composite panels by nanosilver
2016 - IRG/WP 16-40715
…6, 8, and 10 min. Results showed that the uniform and even dispersion of nanoparticles throughout the MDF-matrix significantly contributed to an increase in the hardness at lower hot-press time of 6 min. In the longer hot-press times, however, over-heating of the mat resulted in significant a decrease of hardness…
H R Taghiyari, J Norton, K Heidarhaee
The role of hydrophobins in surface growth by the Blue Stain fungi Aureobasidium pullulans
2015 - IRG/WP 15-10837
…pullulans on exterior wood coatings (e.g. wood paints). At least two gene sequences encoding hydrophobins in Aureobasidium pullulans were identified, both to be successively disrupted by integrating a recycled selectable marker into the open reading frames of the genes, creating a double knock-out mutant…
J Stenbæk, L Riber, J Blæsbjerg Nielsen, C Møller Hansen, B Jensen
Wood protectors to control Bursaphelenchus xylophilus
2015 - IRG/WP 15-30661
…the protection of forest stands from the propagation and dispersion of this pathogen. In this line, the current control measures have been unsuccessful in preventing the dispersion of this organism, as it continues to be detected in wood material through commercial trade. By other hand, timber is an organic…
M T Troya, C S Arcos, A Navas, L Robertson, M Conde, F Llinares
Indentation and pendulum hardness tests: two convenient assessment methods of the performance of exterior wood coatings
2015 - IRG/WP 15-40689
…this destructive indentation test for several commercial acrylic coatings applied on spruce and Scots pine. In addition, pendulum hardness tests were carried out as a non-destructive test to gain further information about mechanical properties of the tested coatings. The influence of thickness was examined. This…
L Malassenet, L Podgorski, M Truskaller, G Grüll
Application of nanoparticles of silver and nanoparticles of titanium dioxide in reinforcement of wood and coating for wood in Costa Rica
2015 - IRG/WP 15-40698
…be related to many substances, for example additives to paints or wood coating. In this study, silver nanoparticles and titanium dioxide were incorporated to some commercial timber species from Costa Rica as well as on wood coatings, for increasing wood durability and wood coating performance. Fungal resistance…
A Berrocal Jiménez, R Moya Roque, A Lucrecia Rodríguez, J R Vega Baudrit
How to Increase the Lifespan of Exterior Wood Coatings
2015 - IRG/WP 15-40700
…Understanding how different type of resins (alkyd, acrylic or polyurethane), amount of pigments, type of solvents (organic or water), and major additives will affect coating performance on wood, helps coating formulators to develop more durable coatings. It is beneficial for both wood scientists and coating…
M Nejad
Efficacy of commercial wood preservatives against Bursaphelenchus xylophilus, a quarantine organism in Europe
2014 - IRG/WP 14-30638
…Union to protect forest stands from the propagation and dispersion of this pathogen. Since the nematode was detected in Europe, eradication measures were taken. However, these measures were unsuccessful in decreasing the infection level, leading to the announcement of new European regulations (2006/133/CE,…
C S Arcos, A Navas, L Robertson, M T Troya, M Conde, F Llinares
Effect of silver nanoparticles on the rate of heat transfer to the core of the medium-density fiberboard mat
2014 - IRG/WP 14-40653
…was 30-80 nm. Results showed that the uniform and even dispersion of nanoparticles throughout the MDF-matrix significantly contributed to the faster transfer of heat to the core section. As to the loss of mat water content after the first 3 – 4 minutes under the hot press, the core temperature slightly…
H Reza Taghiyari, O Schmidt, E Bari, P M Tahir, A Karimi, P Nouri, A Jahangiri
Termiticide Residues in Gravel Fill
2014 - IRG/WP 14-20553
Downward dispersion of liquid termiticide in gravel was determined by measuring active ingredient (a.i.) residues of two frequently applied liquid pyrethroid termiticides during one year following surface applications at lowest label rates (Up-Cyde Pro® 2…
B M Kard, C E Konemann, K T Shelton, C C Luper, R A Grantham, M E Payton
Survival of Bursaphelenchus xylophilus exposed to different active ingredients of wood protectors
2013 - IRG/WP 13-10802
…Union to protect forest stands from the propagation and dispersion of this pathogen.The nematode was first detected in Europe in Setubal (Portugal) in 1999 and eradication measures were taken. However, these measures were unsuccessful in decreasing the infection level, leading to the announcement of new European…
S C Arcos, M T Troya, L Robertson, F Llinares, M Conde, A Navas
Study of UV resistance and natural weathering of coatings on chemically modified wood
2013 - IRG/WP 13-40629
…polymers improved coatings adhesion and enhanced life of paints by 3-4 times. The performance of opaque coating was better than transparent coating, presumably due to photodegradation of wood substrate in transparent coating.
K K Pandey, K Srinivas
Protective effectiveness of antifouling coatings for wooden boats in the Northern Adriatic Sea
2013 - IRG/WP 13-40634
…coatings and some more environmentally friendly paints for boats on the market. However, the question of their performance in accordance with the manufacturers’ statements or guaranties arises. The aim of our preliminary investigation was to state which type of antifouling coating exhibits better…
M Petrič, M Humar, J Adamek, B Kričej
Preservatives stains as exterior wood finishes
1977 - IRG/WP 389
For many years wood preservatives and paints have been used as the only treatment for exposed wood surfaces. Because of the inherent color of the preservatives, such as creosote, the wood surface was stained as well as protected from attack by micro-organisms. Paints protect surfaces from…
D W French
Exterior wood stains
1979 - IRG/WP 3136
…is so. Some high-build stains are based on water-borne acrylic agglutinants and have very good durability although when used as the sole treatment they lack the freshness of the solvent-borne materials and the thermoplastic nature of the film creates problems on contacting surfaces. Interest continues to grow in…
E R Miller