Surface coating on mahogany wood against weathering due to uv and humidity exposure: an application on protecting new wood facade of old meycauayan pnr station/ April A. Engo, Vincent Deneb S. Gonda, Franz Bryan C. Luna, Christine Joannah M. Nicoleta, Gizelle B. Tomines, and Charles Miguel A. Ybañez.--

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Engo, April A [author]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2024.Description: xiv, 178pages: 29cmContent type:

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BTH TA 145 E54 2024

Dissertation note: College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2024. Summary: The Philippines, as a tropical country, experiences consistently high levels of UV exposure (index 7 year-round) and peak humidity levels of up to 81%. This study aims to identify the most effective surface coating for protecting wood against discoloration and strength degradation caused by prolonged UV and humidity exposure. These findings are intended to guide the restoration of the wood facade of the historic Meycauayan PNR Station in Bulacan, which is part of the ongoing North-South Commuter Railway (NSCR) project by the Philippine National Railways (PNR) and the Department of Transportation (DOTr). Four coatings—Polyurethane, Acrylic Polymer Resin, Beeswax, and Varnish—were applied via single-pass brushing onto mahogany wood samples (100 x 200 x 10 mm). These samples underwent 60 days of natural weathering. Effects were assessed using CIE-Lab color analysis (ASTM D2244-16), UV penetration depth measurement, and nail-head pull-through strength tests (ASTM D1037-99). Testing and analysis were conducted in collaboration with DOST-FPRDI in Los Baños, Laguna. Results indicate that varnish provides the highest protection against discoloration, outperforming other coatings by 30.54%. Beeswax offers superior resistance to UV penetration, achieving 48% greater protection. Meanwhile, acrylic polymer resin exhibited the best performance in preserving wood strength, with an efficiency of 58.75%. A tally-scoring system was used to comprehensively evaluate the test parameters. Among the coatings, beeswax emerged as the overall best-performing option, achieving the highest aggregate score.

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Holdings
Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TA 145 E54 2024 (Browse shelf(Opens below))	c.1	Not for loan		BTH0005721

Bachelor's thesis

College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2024.

Includes bibliographic references and index.

The Philippines, as a tropical country, experiences consistently high levels of UV
exposure (index 7 year-round) and peak humidity levels of up to 81%. This study aims to identify
the most effective surface coating for protecting wood against discoloration and strength
degradation caused by prolonged UV and humidity exposure. These findings are intended to
guide the restoration of the wood facade of the historic Meycauayan PNR Station in Bulacan,
which is part of the ongoing North-South Commuter Railway (NSCR) project by the Philippine
National Railways (PNR) and the Department of Transportation (DOTr). Four
coatings—Polyurethane, Acrylic Polymer Resin, Beeswax, and Varnish—were applied via
single-pass brushing onto mahogany wood samples (100 x 200 x 10 mm). These samples
underwent 60 days of natural weathering. Effects were assessed using CIE-Lab color analysis
(ASTM D2244-16), UV penetration depth measurement, and nail-head pull-through strength tests
(ASTM D1037-99). Testing and analysis were conducted in collaboration with DOST-FPRDI in
Los Baños, Laguna. Results indicate that varnish provides the highest protection against
discoloration, outperforming other coatings by 30.54%. Beeswax offers superior resistance to UV
penetration, achieving 48% greater protection. Meanwhile, acrylic polymer resin exhibited the
best performance in preserving wood strength, with an efficiency of 58.75%. A tally-scoring
system was used to comprehensively evaluate the test parameters. Among the coatings, beeswax
emerged as the overall best-performing option, achieving the highest aggregate score.

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