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PZC Chatometry

A standard system to measure wood chatoyance

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  • What is Chatoyance?
    • Curl
    • Ribbon Stripe
    • Other Figures
    • Flecks
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  • The PZC method
    • Scale example 1
    • Scale example 2
    • Scale example 3
    • Scale example 4
  • Woods
    • Summary Table
    • Africa
      • Abura
      • Afrormosia
      • Agba
      • Agba
      • Afzelia
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      • Bilinga
      • Bilinga
      • Bomanga
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      • Ocotea
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      • Rosewood, African Blackwood
      • Rosewood, Madagascar
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      • Walnut, African
      • Zebrawood
    • Asia
      • Acacia, unspecified
      • Ailanthus
      • Albizia, unspecified
      • Alstonia
      • Artocarpus
      • Ash, Tamo
      • Bintangor
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      • Fig, misc.
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      • Rosewood, Indian
      • Satinwood
      • Sen
      • Sucupira
      • Teak
    • Europe
      • Alder
      • Apple
      • Ash, European
      • Ash, Olive
      • Beech, European
      • Birch
      • Birch, Karelian Burl
      • Black Locust
      • Bog Oak
      • Cedar, European
      • Cherry, Sweet
      • Chestnut, Horse
      • Chestnut, Sweet
      • Cypress, Mediterranean
      • Elm
      • Fir, European Silver
      • Hawthorn
      • Hazelnut
      • Hornbeam
      • Laburnum
      • Lagerstroemia
      • Larch, European
      • London Plane
      • Lime, European
      • Madrone
      • Maple, European
      • Mulberry
      • Oak, Sessile
      • Olive
      • Olive, Russian
      • Poplar, Yellow
      • Pine, Maritime
      • Pine, Swiss Stone
      • Pine, unspecified
      • Pear
      • Poplar
      • Spruce, Fiemme (Ciresa tonewood)
      • Sumac
      • Walnut, European
      • Yew
    • North America
      • Ash, American White
      • Alder, Red
      • Beech, North American
      • Beech, North American
      • Boxelder
      • Butternut
      • Catalpa
      • Cedar, Eastern Red
      • Cedar, Western Red
      • Cherry, Black
      • Cypress, Bald
      • Cypress, Lawson
      • Desert Ironwood
      • Desert Ironwood
      • Dogwood
      • Fir, Douglas
      • Giant Sequoia
      • Hackberry
      • Hemlock
      • Hickory
      • Holly
      • Honey Locust
      • Juniperus misc.
      • Koa
      • Magnolia
      • Maple, Bigleaf
      • Maple, Bigleaf
      • Maple, Hard
      • Mesquite
      • Mesquite
      • Oak, Red
      • Oak, White
      • Osage Orange
      • Osage Orange, Green
      • Red Gum
      • Pecan
      • Pecan
      • Redwood
      • Sassafras
      • Service Tree
      • Sycamore, American
      • Sycamore, American
      • Walnut, Black
      • Walnut, Claro
      • Walnut, Claro
      • Willow
    • Oceania
      • Agathis
      • Ash, Crow’s
      • Australian Blackwood
      • Black Bean
      • Cedar, Australian Red
      • Eucalyptus, unspecified
      • Ash, Mountain
      • Gum, River Red
      • Oak, Tasmanian
      • Jarrah
      • Maple, Queensland
      • Oak, Northern Silky
      • Oak, Southern Silky
      • Pine, Huon
      • She-Oak, River
      • Spotted Gum
      • Tasmanian Myrtle
      • Walnut, Queensland
    • South and Central America
      • Angelim
      • Araucaria
      • Aspidosperma
      • Bloodwood
      • Bocote
      • Canarywood
      • Carapa
      • Cedar, Spanish
      • Cerejeira
      • Chechen
      • Cumaru
      • Curupixa
      • Freijo
      • Garapa
      • Goncalo Alves
      • Goupie
      • Granadillo
      • Guanacaste
      • Guatambu
      • Imbuia
      • Ipe
      • Jacareuba
      • Jatoba
      • Jequitiba
      • Katalox
      • Leopardwood
      • Lignum Vitae
      • Louro Faia
      • Louro Preto
      • Mahogany, Cuban
      • Mahogany, Honduras
      • Massaranduba
      • Nothofagus
      • Osage Orange, Argentine
      • Pao Rosa
      • Peroba Rosa
      • Piquiarana
      • Podocarpus
      • Primavera
      • Rosewood, Brazilian
      • Rosewood, Cocobolo
      • Rosewood, Honduras
      • Rosewood, Kingwood
      • Rosewood, Santos
      • Tatajuba
      • Timbauba
      • Tineo
      • Tulipwood (Brazilian)
      • Ziricote
  • Case studies
    • Roasting Curly Maple
    • Epoxy resin
    • Bleaching Sapele
    • Sapwood vs Heartwood
    • Different Materials
    • Sunlight & Weather
      • Sunlight exposure on purpleheart
      • Sunlight & Weather exposure on sweet cherry
      • Sunlight exposure on field maple
      • Sunlight exposure on Tasmanian Blackwood
      • UV light exposure
    • Finishing
      • Finishing Maple
      • Finishing Curly Maple
      • Finishing Curly Maple – part 2
      • Surface preparation on Curly Maple
      • Incremental grit and finishing on Curly Maple
      • Finishing Okoume
      • Finishing London Plane
      • Finishing Blonde European Walnut
      • Finishing European Ash
      • Finishing European Elm
      • Finishing Etimoe
      • Finishing Sweet Cherry
      • Finishing Ovangkol
      • Finishing European Oak
      • Finishing Birch
      • Finishing Teak
      • Finishing Iroko
      • Finishing Sapele
      • Finishing Sumac
      • Finishing Redbud
      • Finishing Kotibe
      • Finishing Indian Rosewood
      • Finishing Hackberry
      • Finishing Paldao
      • Finishing Bocote
      • Finishing Merbau
      • Finishing Snakewood
      • Finishing Purpleheart
      • Finishing Padouk
      • Finishing Mulberry
      • Finishing Niangon
      • Finishing Tasmanian Blackwood
    • Progressive grit sanding
    • Ultra-fine sanding
    • Supersurfacing
    • Raw Veneer vs fine sanded
    • Cleaning Black Walnut
    • Quartersawn vs Flatsawn
      • Quartersawn vs Flatsawn on London plane
      • Quartersawn vs Flatsawn on Red Oak
      • Quartersawn vs Flatsawn on European Beech
      • Quartersawn vs Flatsawn on Louro Faia
    • Runout Angle
    • Mud Curing on Osage Orange
    • No. 1 – Hawaiian Koa
    • High-res videos
    • Large GIFs [heavy pages…]
      • Large GIFs 1
      • Large GIFs 2
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      • Large GIFs 7
      • Large GIFs 8
      • Large GIFs 9
      • Large GIFs 10
      • Australian species
    • Wood samples
    • Fresh-cut wood
    • From firewood to PZC results
    • Hunting for Tasmanian Blackwood
    • Included branches and Crotches
    • Chatoyance distribution within a tree
    • Tasmanian Blackwood – heartwood and sapwood
    • Stabilization
    • Microscope pictures
    • Out of the tablesaw
    • Chatoyance vs Fluorescence
    • Patch of Black Cherry trees
    • Spalting
    • Bark
    • Thuya Burl
    • Dying Curly Maple
    • Ammonia fuming
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Finishing Blonde European Walnut

This set of tests is aimed at understanding the effect of different finishes on Blonde European Walnut.

A set of 12 consecutive veneer sheets (from “A” to “M”) were employed, each split into two samples (“1” and “2”); therefore, all samples ending with “1” are just consecutive layers of the initial log and start from very similar PZC values; the same applies for samples “2”. All samples were sanded to 240-grit.

A special thanks goes to company Veleca for supporting us with finish samples.

We tested these finishes:
Veleca Palkerol (water based anionic polyurethane – floor finish)
Veleca Pinteco (acrylic emulsion – outdoor finish)
Veleca Mobil H (water based acrylic – furniture finish)
Veleca Nitrolux (thinner based ketone resin – classic furniture finish)
Veleca Tampoval (blonde dewaxed shellac – antique furniture finish)
Veleca Olio per Teak (Tung oil based – exotic wood finish)
Boiled Linseed Oil (BLO)
Blonde Dewaxed Shellac “Medium” (2 parts in 13 parts of Alcohol)
Furniture restoring oil
Transparent epoxy resin
Nitrocellulose spray lacquer (NCL)
Acrylic spray lacquer

It was concluded that:
1) chatoyance is increased only by some of these clear coats
2) Nitrolux, Tampoval, Nitrocellulose or Acrylic lacquers provide the best results
3) Some of these “clear” finishes significantly darken the surface

Tables below summarize the results in terms of chatoyance (PZC):

Tables below summarize the results in terms of brightness (fraction of white paper brightness):

Pictures below show the results:

Sanding to 240-grit – no finish (sample J1 – PZC = 7.6)
Sanding to 240-grit + 1 Palkerol coat (sample A1 – PZC = 10.8)
Sanding to 240-grit + 1 Pinteco coat (sample B1 – PZC = 11.1)
Sanding to 240-grit + 1 Mobil H coat (sample C1 – PZC = 11.5)
Sanding to 240-grit + 2 Nitrolux coats (sample D1 – PZC = 16.8)
Sanding to 240-grit + 3 Tampoval coats (sample F1 – PZC = 15.6)
Sanding to 240-grit + 3 Teak Oil coats (sample G1 – PZC = 14.4)
Sanding to 240-grit + 3 BLO coats (PZC = 14.0)
Sanding to 240-grit + 3 Furniture Restoring Oil coats (PZC = 14.3)
Sanding to 240-grit + 3 Nitrocellulose coats (PZC = 16.6)
Sanding to 240-grit + 3 Acrylic spray coats (PZC = 15.3)
Sanding to 240-grit + 3 Medium Shellac coats (PZC = 14.5)
Sanding to 240-grit + 1 Epoxy coat (PZC = 14.1)

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