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Acrylic Mirror Sheet: Silver Sprayed on Tannin-Treated Acrylic
Charlie

Yaremwe na

Charlie

20. Ukwakira 2026DE
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Acrylic Mirror Sheet: Silver Sprayed on Tannin-Treated Acrylic

Silver from a chemical bath barely sticks to acrylic: tannin in plain water gave no bond at all. Philips' Ponjee and Verwijlen (US 4,639,382, 1987) found that tannin dissolved in water mixed with an organic solvent such as ethanol makes the silver hold firmly, without etching or clouding the acrylic. The sheet is dipped for a minute, sensitised with a weak stannous chloride spray, then silvered by spraying the silver solution and the reducer together. In the patent's cross-cut test, no squares of silver came off. The picture: our diagram.
Hagati
2 hours

Amabwiriza

1

Dip in tannin solution for one minute

Make a solution of 2.3–5.0 g of tannic acid per litre in water with 15–60 % ethanol by volume. Dip the acrylic sheet in it for one minute.

Ibikoresho by'iyi ntambwe:

Urupapuro rwa AkirilikiUrupapuro rwa Akiriliki1 igice

Ibikoresho bikenewe:

Acide ya taninikeAcide ya taninike
Etanoli - urwego rw'ubushakashatsi, 95 %Etanoli - urwego rw'ubushakashatsi, 95 %
Amazi YatunganyijweAmazi Yatunganyijwe
Amasahani y'ikirahureAmasahani y'ikirahure
Igipimo cy'ikirahure gifite imirongoIgipimo cy'ikirahure gifite imirongo
Umunzani w'ibiroUmunzani w'ibiro
Uturindantoki tw'ikawusuUturindantoki tw'ikawusu
2

Rinse with water

Rinse the sheet with water.

Ibikoresho bikenewe:

Amazi YatunganyijweAmazi Yatunganyijwe
Icupa ryo gukarabaIcupa ryo gukaraba
3

Spray with stannous chloride for 12 seconds

Spray the face to be silvered with a solution of 0.1 g stannous chloride and 0.1 ml concentrated hydrochloric acid per litre of water, for 12 seconds. Rinse off the excess with water.

Ibikoresho bikenewe:

Kolorura ya sitaniKolorura ya sitani
Asidi ya kloridiriAsidi ya kloridiri
Amazi YatunganyijweAmazi Yatunganyijwe
Icupa ryo kuminjagira amaziIcupa ryo kuminjagira amazi
Icupa ryo gukarabaIcupa ryo gukaraba
Amadarubindi yo Kwirinda IbinyabutabireAmadarubindi yo Kwirinda Ibinyabutabire
Uturindantoki tw'ikawusuUturindantoki tw'ikawusu
4

Spray silver and reducer together

Atomise two solutions onto the face at the same time: silver nitrate with ammonia in water, and formalin in water. The patent gives no strengths: as required. Ours: a twin-nozzle spray gun.

Ibikoresho by'iyi ntambwe:

Nitrate ya fezaNitrate ya feza1 as required

Ibikoresho bikenewe:

Umuti wa amoniyake wa 25-28 %Umuti wa amoniyake wa 25-28 %
Umuti wa fomaledehide (fomaline 37 %)Umuti wa fomaledehide (fomaline 37 %)
Amazi YatunganyijweAmazi Yatunganyijwe
Imbunda ishashaza ifite imiyoboro ibiriImbunda ishashaza ifite imiyoboro ibiri
Akabati k'umwotsi (gafite umuyoboro)Akabati k'umwotsi (gafite umuyoboro)
Amadarubindi yo Kwirinda IbinyabutabireAmadarubindi yo Kwirinda Ibinyabutabire
Uturindantoki tw'ikawusuUturindantoki tw'ikawusu

Ibikoresho

2

Ibikoresho bikenewe

16

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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