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Shellac Flakes from Stick Lac
Shellac is the resin the female lac insect secretes on the twigs of its host trees. Scraped off with bark and insects in it, it is packed into a cloth tube and heated over a fire; the resin melts and seeps out through the cloth, leaving the debris inside. Spread thin and cooled it sets into sheets that break into flakes. Dissolved in alcohol it becomes French polish and sanding sealer.
初学者
Half a day
说明
1
1
Scrape the lac
Scrape the lac
Scrape the lac crust off the branches with a knife onto a cloth. Weigh it.
此步骤所需材料：
结有紫胶的树枝1 公斤所需工具：
刀
称重秤2
2
Crush and wash
Crush and wash
Crush the crust coarsely, then rinse it in cold water and pour off what floats, to wash out the red dye and dust. Dry it.
此步骤所需材料：
水5 升所需工具：
研钵与研杵
大汤锅
细目筛3
3
Fill the cloth tube
Fill the cloth tube
Sew a long narrow tube of cotton cloth, fill it with the washed lac and tie both ends.
此步骤所需材料：
棉布0.25 sqm所需工具：
刀4
4
Melt it through the cloth
Melt it through the cloth
Holding the tube by its ends with gloves, warm it over a low fire and twist it slowly; the melted shellac seeps out through the cloth. Scrape it onto parchment on a tray.
所需工具：
火塘
耐热手套
烘焙油纸
烤盘5
5
Spread and cool
Spread and cool
While soft, press it out into a thin sheet and let it cool hard.
所需工具：
烘焙油纸6
6
Break into flakes
Break into flakes
Break the sheet into flakes, weigh them, and store them in a closed jar away from heat.
所需工具：
称重秤
带盖玻璃罐
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