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Plaster Bat: a Round Slab Poured in a Frying Pan (Binns, 1910)
Woody

Dicipta oleh

Woody

4. November 2026NO
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Plaster Bat: a Round Slab Poured in a Frying Pan (Binns, 1910)

A plaster bat is a round slab of plaster that potters use to hold work while making or drying it, and to stiffen wet clay. Binns makes his first one in a frying pan. Variable: plaster per quart of water. 2 3/4 lb is his standard; less gives a softer bat, more a harder one. Source: Charles F. Binns, The Potter's Craft (1910), pp. 43-47. Picture: drawn by Youblob from the text.
Pemula
Unknown

Arahan

1

Make the size

Put a quart of water in a kettle with a piece of soft soap the size of an egg. Simmer about an hour, until the soap has dissolved, and let it cool. Cold, it should be like maple syrup. The size keeps plaster from sticking to a surface.

Alatan diperlukan:

AirAir
Bahan tidak diketahuiBahan tidak diketahui
Periuk berdinding tinggiPeriuk berdinding tinggi
2

Size the frying pan

Brush size onto the inside of the pan, wipe it off with a sponge, then wash with a second sponge and clean water. On metal one coat often does; repeat until the surface rejects water like grease. On the last coat don't wash: polish with the size sponge. Set the pan on a level table.

Alatan diperlukan:

Kuali keluli karbonKuali keluli karbon
Berus halusBerus halus
SpanSpan
3

Mix the plaster

Take as much water as fills the pan about 1 in deep; Binns supposes a quart. Weigh 2 3/4 lb of dry potters' plaster for each quart and let it trickle through your fingers into the water in a jug. After about two minutes, when it has soaked up all the water it will take, stir with your hand to a smooth cream, breaking all lumps and removing air bubbles.

Bahan untuk langkah ini:

Plaster ParisPlaster Paris2.75 paun
AirAir1 quart

Alatan diperlukan:

Jag penyukatJag penyukat
PenimbangPenimbang
4

Pour at the right moment

Keep stirring gently until the mix thickens and leaves a white coating on your hand that won't shake off. Then pour it into the pan and shake gently to level it. Poured right, it sets smooth and mat, like sugar icing. Poured too late, it is stiff and hard to level; too soon, it curdles with water on top. Wash the jug at once in a tub, never down a sink: plaster chokes the drain.

Alatan diperlukan:

Kuali keluli karbonKuali keluli karbon
TabTab
5

Turn out and scrape the bat

After about ten minutes the bat grows warm: setting is complete. Hold the pan upside down by the handle and rap its edge smartly on a brick or stone. The disc falls out. Scrape its edge and set it aside. Binns suggests making half a dozen for practice.

Alatan diperlukan:

Kuali keluli karbonKuali keluli karbon
Pengikis keluliPengikis keluli

Bahan

2
  • 3
    Plaster Paris
    2.75 paun
    Pemegang Tempat
  • 3
    Air
    1 quart
    Pemegang Tempat

Alatan Diperlukan

10

Bahan Blueprint Bersambung

Plaster of Paris from Gypsum
10% Atribusi

Plaster of Paris from Gypsum

oleh CharlieDE

Kimia

47
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1
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Blueprint ini membuat

Thumbnail
Pemegang tempat

Bat plaster untuk tembikar

Free

144
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1

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