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Contact Cement: Crude Rubber Dissolved in Benzine
Crude rubber cut into fine threads swells and dissolves in benzine (light naphtha) to a cement as thick as honey (Spon, Workshop Receipts, 1879). Coat both surfaces, let them dry, and press them together: the bond forms at once, with no clamping. It joins leather straps, patches and rubber soles.
The picture: our drawing of the bottle, the shreds and a glued strap.
Baguhan
A few days
Mga Tagubilin
1
1
Cut the rubber fine
Cut the rubber fine
With a wet knife, cut the crude rubber into the thinnest possible slices. With shears, divide them into threads as fine as yarn.
Mga materyales para sa hakbang na ito:
Pinausukang plantsa ng goma13 gMga kailangang kasangkapan:
Kutsilyong Pang-arte
Malaking gunting
Digital na Timbangang Pangkusina2
2
Fill the bottle
Fill the bottle
Put the shreds in a wide-mouthed bottle, a tenth of its space or less. Fill it three-quarters full with good benzine, free from oil. Keep it away from flames.
Mga materyales para sa hakbang na ito:
Naphtha425 mlMga kailangang kasangkapan:
Garapong Salamin
Pitsel na panukat3
3
Let it swell and dissolve
Let it swell and dissolve
The rubber swells at once. Shake it often; in a few days it is as thick as honey. Lumps left: add benzine. Too thin: add rubber.
Mga kailangang kasangkapan:
Garapong Salamin4
4
Glue by contact
Glue by contact
Brush cement on both surfaces and let it dry a few minutes. Give three coats in all, then press the two faces together; no clamp is needed.
Mga kailangang kasangkapan:
Brotsa sa pandikit5
5
Rubber per pint
Rubber per pint
Naglo-load ng Jupyter notebook…
Mga Kinakailangang Kasangkapan
6- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
Ang blueprint na ito ay gumagawa ng
Kaugnay na Blueprint
Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo
CC0 Pampublikong Domain
Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.
Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.