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Sandpaper from Sand, Hide Glue and Paper
Mary

Imeundwa na

Mary

11. Oktoba 2026FI
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Sandpaper from Sand, Hide Glue and Paper

A coated abrasive is grit glued to a backing. The first recorded one, in 13th-century China, bonded crushed shells, seeds and sand to parchment with natural gum. Here clean quartz sand is crushed, sieved into grades and scattered on paper brushed with warm hide glue. Sieve mesh only roughly matches a shop grit number: real P grades are set by ISO 6344. Quartz grit on hide glue wears faster than garnet or aluminium oxide paper, and water softens the glue, so use it dry.
Mwanzo
1 hour, plus a day drying

Maagizo

1

Crush the sand

With a dust mask on, crush clean quartz sand in the mortar, a few spoonfuls at a time.

Vifaa kwa hatua hii:

Mchanga wa KwatziMchanga wa Kwatzi300 g

Zana zinazohitajika:

Kinu na mchiKinu na mchi
Barakoa ya vumbiBarakoa ya vumbi
2

Sieve into grades

Sieve through the 60, 80 and 120 mesh sieves stacked coarse on top. Keep what each sieve holds in its own labelled jar: coarse, medium and fine.

Zana zinazohitajika:

Ungo wa matundu 60Ungo wa matundu 60
Chujio la matundu 80Chujio la matundu 80
Ungo wa Matundu 120Ungo wa Matundu 120
Mitungi ya kioo yenye vifunikoMitungi ya kioo yenye vifuniko
Barakoa ya vumbiBarakoa ya vumbi
3

Warm the glue

Soak hide glue granules in water, then warm them in a double boiler to about 60 °C until runny. Do not let it boil.

Vifaa kwa hatua hii:

Gundi ya ngozi ya wanyamaGundi ya ngozi ya wanyama50 g
MajiMaji0.1 lita

Zana zinazohitajika:

Sufuria ya kupikia kwa mvuke wa majiSufuria ya kupikia kwa mvuke wa maji
Sahani ya Kupasha JotoSahani ya Kupasha Joto
Kipima joto chenye kijiti kinachobaki ndaniKipima joto chenye kijiti kinachobaki ndani
4

Glue the paper

Brush a thin, even coat of glue over one face of a sheet of strong paper, edge to edge.

Vifaa kwa hatua hii:

KaratasiKaratasi3 karatasi

Zana zinazohitajika:

Brashi ya gundiBrashi ya gundi
5

Scatter the grit

While the glue is wet, sprinkle one grade of grit thickly over it, press it in with a rolling pin over a clean sheet, and let it set for a minute.

Zana zinazohitajika:

Mbinjo wa ungaMbinjo wa unga
6

Shake off and dry

Tip the sheet on edge and tap off the loose grit back into its jar. Dry it flat for a day, then label the back with its grade.

Zana zinazohitajika:

Mitungi ya kioo yenye vifunikoMitungi ya kioo yenye vifuniko
7

Test it

Sand a scrap of softwood ten strokes and look at the scratches. Cut sheets to size.

Zana zinazohitajika:

MkasiMkasi
8

Troubleshooting

Home-made sandpaper troubleshooting.

Flow

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Vifaa

4

Zana Zinazohitajika

12

Mchoro huu unatengeneza

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Kishikilia nafasi

Mkusanyo wa sandarusi

Free

715
0
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Kishikilia nafasi

Karatasi ya sandarusi

Free

267
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Kishikilia nafasi

Sandarusi (karatasi ya kusugua)

Free

3,100
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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Making Hide Glue by Boiling Rawhide Scraps — Prehistoric Collagen Adhesive

Making Hide Glue by Boiling Rawhide Scraps — Prehistoric Collagen Adhesive

na BobBE

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CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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