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PZC Chatometry

A standard system to measure wood chatoyance

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  • What is Chatoyance?
    • Curl
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  • The PZC method
    • Scale example 1
    • Scale example 2
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    • Scale example 4
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    • Summary Table
    • Africa
      • Abura
      • Afrormosia
      • Agba
      • Agba
      • Afzelia
      • Aniegre
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      • Bilinga
      • Bilinga
      • Bomanga
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      • Ebony, Gaboon
      • Etimoe
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      • Kotibe
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      • Limba
      • Limba, Black
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      • Obeche
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      • Ocotea
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      • Rosewood, African Blackwood
      • 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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      • Ebony, Macassar
      • Fig, misc.
      • Kapur
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      • Paulownia
      • 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
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      • Hawthorn
      • Hazelnut
      • Hornbeam
      • Laburnum
      • Lagerstroemia
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      • London Plane
      • Lime, European
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      • Maple, European
      • Mulberry
      • Oak, Sessile
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      • Pine, Maritime
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      • Pine, unspecified
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    • North America
      • Ash, American White
      • Alder, Red
      • Beech, North American
      • Beech, North American
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      • Catalpa
      • Cedar, Eastern Red
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      • Cherry, Black
      • Cypress, Bald
      • Cypress, Lawson
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      • Fir, Douglas
      • Giant Sequoia
      • Hackberry
      • Hemlock
      • Hickory
      • Holly
      • Honey Locust
      • Juniperus misc.
      • Koa
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      • 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
      • Quartersawn vs Flatsawn on White Mulberry
    • Runout Angle
    • Mud Curing on Osage Orange
    • No. 1 – Hawaiian Koa
    • High-res videos
    • Large GIFs [heavy pages…]
      • Large GIFs 1
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      • Large GIFs 3
      • Large GIFs 4
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      • Large GIFs 7
      • Large GIFs 8
      • Large GIFs 9
      • Large GIFs 10
      • Large GIFs 11
      • Large GIFs 12
      • 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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Incremental grit and finishing on Curly Maple

In this set of tests 3 Curly Maple veneer samples were subjected to a number of consecutive steps of sanding and Shellac coating, to simulate a commonly used finishing technique. Blonde Dewaxed Shellac “Medium” (2 parts in 13 parts of Alcohol) was employed for the test. Table and charts below summarize the results:

The samples are from consecutive sheets of the flitch used in surface preparation on Curly Maple, where dense shellac (4 part in 13 parts of Alcohol) was used, so results may also be compared:

In conclusion, it would seem that
1) it is confirmed that sanding to a higher grit provides better results on the finished product
2) if using an alternating sequence of sanding + finishing, the best results are obtained stopping at 800-grit sanding
3) in this test, the alternating sequence did not provide significant improvements to the “sand and then finish” recipe

Pictures below show the appearance at some different stages:

Sample O3 as received (veneer) (PZC = 18.2)
Sample O3 after 240-grit sanding + Medium Shellac (PZC = 16.5)
Sample O3 after #240 + Sh. +#400 + Sh. + #600 + Sh. + #800 +Sh. recipe (PZC = 20.7)
Sample J3 after #180 +#320 + #800 + #1500 +Dense Shellac recipe (PZC = 20.7)

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