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205 records – page 1 of 21.

20-year evaluation of millwork preservatives

https://library.fpinnovations.ca/en/permalink/fpipub4412
Author
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Edition
41191
Material Type
Research report
Field
Sustainable Construction
Author
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Edition
41191
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Preservation
Series Number
W-1548
Location
Vancouver, British Columbia
Language
English
Abstract
A field test of six millwork preservatives has been ongoing for twenty years, using a simulated window corner, or "Y-joint", as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
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24 month evaluation of novel UV protection systems. Second Year Report 2004/05

https://library.fpinnovations.ca/en/permalink/fpipub4530
Author
Morris, Paul I.
McFarling, S.M.
Date
March 2005
Edition
41317
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
McFarling, S.M.
Contributor
Canada. Canadian Forest Service.
Date
March 2005
Edition
41317
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Series Number
Canadian Forest Service No. 35;3226
W-2134
Location
Vancouver, British Columbia
Language
English
Abstract
A transparent coating with long-term performance could help wood maintain its share of residential markets against material substitution and potentially expand markets in recreational property and non-residential buildings. While transparent coatings can be made reasonably resistant to UV some UV likely penetrates to the wood and by necessity clear coatings are transparent to visible light. Visible light can also cause damage over the long term thus the underlying wood needs additional protection. Four novel UV protection systems were tested as pre-treatments on uncoated wood and under three coatings, a water-based film forming coating, a water-based acrylic varnish and a solvent based water repellent. Samples were exposed to natural weathering facing South at 45° at a test site in Gulfport, Mississippi, in collaboration with the USDA Forest Products Laboratory. The test material was inspected every six months for discolouration, mold and stain, coating water repellency, flaking, erosion and cracking and substrate condition. After 24 months exposure, coatings over the combination of UV absorber and lignin stabilizer identified by Stephen Ayer were performing better than the same coatings applied over the combination recommended by Ciba and coatings over both pre-treatments were performing substantially better than controls with no pre-treatment. Projection of fitted curves beyond the data appears to indicate that pretreatment may double the life expectancy of the coating. There was no consistent effect of the synergists on either combination at this time.
Preservatives - Tests
Finishes - Exterior - Tests
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25-year evaluation of millwork preservatives

https://library.fpinnovations.ca/en/permalink/fpipub4504
Author
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Edition
41291
Material Type
Research report
Field
Sustainable Construction
Author
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Edition
41291
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Preservation
Series Number
W-2002
Location
Vancouver, British Columbia
Language
English
Abstract
A field test of six millwork preservatives has been ongoing for 25 years, using a "Y-joint" as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
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1999 strategy for durability research and technology transfer

https://library.fpinnovations.ca/en/permalink/fpipub5885
Author
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Edition
41223
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Edition
41223
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Research
Series Number
W-1685
Location
Vancouver, British Columbia
Language
English
Abstract
The objective of this initiative is to re-evaluate Forintek's research strategy and the Canadian Wood Council's technology transfer strategy in durability of wood products and systems in the light of changing industrial, regulatory, environmental, and social factors. Forintek and the CWC chose to undertake this process jointly, in order to develop well-matched parallel activities that are mutually supportive and grounded in common underlying objectives. In this way, both organizations can most effectively and efficiently address our members' needs in an area of growing challenges for the wood industry. The first step in the strategic planning process was the creation of a joint CWC/Forintek Durability Guidance Group. This group was canvassed for input on high priority issues related to wood durability. Forintek and CWC then developed ideas for deliverables or tasks in research and technology transfer, respectively. At this stage we are looking for input on the degree to which this draft strategy addresses industry needs.
Research - Durability
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Accelerated preservative evaluation

https://library.fpinnovations.ca/en/permalink/fpipub4202
Author
Morris, Paul I.
Ingram, Janet K.
Date
March 1989
Edition
40943
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
Ingram, Janet K.
Date
March 1989
Edition
40943
Material Type
Research report
Physical Description
52 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Series Number
CFS No. 3
W-694
Location
Vancouver, British Columbia
Language
English
Abstract
Summary included
Preservatives - Tests, Stake
Preservatives - Tests, Accelerated
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Accelerated preservative evaluation in ground contact using the FAB

https://library.fpinnovations.ca/en/permalink/fpipub5864
Author
Morris, Paul I.
Parker, L.
Smith, R.S.
Date
March 1987
Edition
41028
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
Parker, L.
Smith, R.S.
Date
March 1987
Edition
41028
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Series Number
CFS No. 7;02-17-10-397
W-456
Location
Vancouver, British Columbia
Language
English
Abstract
Preservatives - Tests, Accelerated
Preservatives - Tests - Fungus cellar
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Advanced technologies to improve penetration of wood treatments : biological incising with Dichomitus squalens in spruce and pine lumber

https://library.fpinnovations.ca/en/permalink/fpipub42460
Author
Dale, Angela
Morris, Paul I.
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Dale, Angela
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Preservation
Pinus
Picea
Series Number
Value to Wood No. FPI#117W
W-2823
Location
Vancouver, British Columbia
Language
English
Abstract
Canadian wood species such as spruce and pine are difficult to treat with wood preservatives or other wood enhancing formulations due to a thin sapwood band and refractory heartwood. One method of improving penetration is by biological incising. Biological incising with Dichomitus squalens was originally developed in Austria in the 1990s to increase the permeability of European spruce prior to treatment with wood preservatives. Recently the patents on this technology lapsed. It was considered unlikely that industrial use of a European white-rot fungus would be acceptable in Canada. FPInnovations therefore conducted a screening test of a range of Canadian isolates of various white-rot fungi to identify an isolate that would be suitable for biological incising of Canadian spruce and pine. Under pure culture conditions, one isolate of Dichomitus squalens isolated from white spruce was found to greatly increase the permeability of the wood, particularly in spruce. The objective of the current study was to determine if these results could be achieved on commercial sized wood under non-sterile conditions more similar to an industrial setting. Lumber samples, 3.8 cm by 8.9 cm by 400 cm in length were incubated in plastic totes with fungal inoculum. Two isolates of fungi were tested as well as two different decontamination methods (steam and Benomyl solution) and two time frames (4 and 6 weeks). Through treatment of spruce samples (19 mm penetration) with 1.7% ACQ was achieved after six weeks incubation with D. squalens 78A (a spruce isolate). In matched samples treated with MCA, a minimum of 10 mm penetration was achieved in 90% of the samples. Strength loss in some individual samples was higher than adjustment factors for conventional incising (over 25%) suggesting that incubation time may need to be shortened. Preservative penetration was more variable in pine but permeability was increased; 60% of the samples reached a minimum penetration of 5 mm. Incubation time and conditions may need to be adjusted to achieve more consistent results. The results of this study show that biological incising can greatly improve the permeability of spruce and pine and can be achieved on 38 by 89 dimension lumber under conditions that could be utilized in an industrial setting. Future work should focus on determining incubation conditions that allow penetration requirements in Canadian standards to be met with acceptable strength loss.
Picea - Preservation
Pinus - Preservation
Preservation - Incising
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Advanced technologies to improve wood penetration : alternative incising technologies

https://library.fpinnovations.ca/en/permalink/fpipub42457
Author
Morris, Paul I.
Date
March 2011
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives penetration
Preservatives
Preservation
Penetration
Series Number
Value to Wood No. FPI 117W
W-2820
Location
Vancouver, British Columbia
Language
English
Abstract
The biggest obstacle to the enhancement of wood properties through any form of chemical treatment is the impermeability of the heartwood of virtually all Canadian Wood species and their relatively narrow sapwood. Incisors using toothed rollers are commonplace in Canadian treating plants but they are not used for many products due to the detrimental effect on surface appearance. Alternative incising technologies anticipated to have less effects on surface appearance have been investigated over the past 30 years. This report revisits four of these technologies, lasers, needles, water jets and biological incising and evaluates their potential for further investigation based on recent advances in technology. Even using the latest technology, laser incising would be too slow and too expensive for a Canadian treating plant. Needle incising would be too slow but the equipment cost should not be an issue. Water jet treatment would also be too slow and the equipment cost is unknown. Biological incising is a very different approach involving batch processing. The major factor would be the cost of inventory which depends on the duration of incubation yet to be determined.
Preservatives - Penetration
Preservation - Incising
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Advanced technologies to improve wood penetration : preliminary screening of fungi with potential for bioincising

https://library.fpinnovations.ca/en/permalink/fpipub42470
Author
Dale, Angela
Symons, Paul D.
Morris, Paul I.
Date
November 2010
Material Type
Research report
Field
Sustainable Construction
Author
Dale, Angela
Symons, Paul D.
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
November 2010
Material Type
Research report
Physical Description
16 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservation
Growth
Series Number
Value to Wood No. FPI 117W
W-2855
Location
Vancouver, British Columbia
Language
English
Abstract
A major constraint to the Canadian wood preservation industry in both domestic and export markets is the difficulty of penetrating Canadian wood species with preservatives. FPInnovations has put considerable effort into various forms of improved mechanical incising but these have not been adopted by the industry due to adverse effects on throughput and appearance of the final product. Recently, work in Europe has shown promising results from biological incising using white-rot fungi that colonize wood relatively rapidly but decay slowly. The use of European isolates of fungi in North America may be constrained by phytosanitary concerns. This report covers an experiment to screen North American isolates of white-rot fungi for potential as biological control agents. A modification of the soil-block test method was used to evaluate the ability of a range of fungi to improve permeability without affecting strength properties. Wood samples were exposed to the fungi for zero, two, four and six week time increments and were then treated with a 1.5% ACQ-D solution. Preservative uptake was calculated based on change in weight before and after treatment. Two isolates of Dichomitus squalens were found that dramatically increased preservative uptake. These samples were tested for strength loss and preservative penetration. Spruce samples exposed to D. squalens isolate 78A for six weeks were completely penetrated with preservative (19 mm depth) in all six samples. D. squalens 78B also showed promising results in pine and spruce samples based on uptake and penetration data. No stiffness loss was detected in any of these samples based on results from the crushing tests.
Preservation - Incising
Fungi - Growth
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Alternate uses for wood treated with carbon-based preservatives at the end of service life

https://library.fpinnovations.ca/en/permalink/fpipub42901
Author
Stirling, Rod
Daniels, C. Robert
Morris, Paul I.
Date
March 2009
Material Type
Research report
Field
Sustainable Construction
Author
Stirling, Rod
Daniels, C. Robert
Morris, Paul I.
Contributor
Canadian Forest Service
Date
March 2009
Material Type
Research report
Physical Description
20 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Waste utilization
Utilization
Recycling
Preservatives carbon
Preservatives
Series Number
W-2976
Location
Vancouver, British Columbia
Language
English
Abstract
The absence of commercial facilities to recycle or recover value from wood treated with metal-based wood preservatives at the end of its service life is one of the most significant negative points in the generally positive life cycle analysis of treated wood. Wood treated with carbon-based preservatives (metal-free) may be far easier to recycle or recover value from since the preservatives are relatively vulnerable to thermal, chemical and biological breakdown. As a result they might be destroyed by kraft pulping, combustion or composting of treated wood. The present research evaluates the use of carbon-based preservative-treated wood in these processes. Kraft pulps produced from wood freshly treated with recommended loadings of carbon-based preservatives contained significant quantities of didecyldimethylammonium carbonate (DDAcarbonate), propiconazole and tebuconazole. However, lower preservative concentration in the wood and intensive pulping may be able to produce pulps without detectable preservatives. The azoles were also detected in significant quantities in the black liquor (DDAcarbonate was not analysed in black liquor). No azoles were found in the ash produced from combustion, but significant quantities were detected in the filtered smoke. DDAcarbonate was not detected in the filtered smoke. Analysis of DDAcarbonate in ash was inconclusive. A composting experiment has been set up and is in progress. Data on preservative breakdown during composting is expected next year.
RECYCLING
Preservatives - Carbon
Waste - Utilization for pulp
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205 records – page 1 of 21.