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Stop-Out Varnish: Turpentine and Resin with Lampblack (Spon's Workshop Receipts)
E. & F. N. Spon · Public domain
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4. Novemba 2026DE
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Stop-Out Varnish: Turpentine and Resin with Lampblack (Spon's Workshop Receipts)

The etcher's stopping-out varnish from Spon's Workshop Receipts: resin dissolved in spirits of turpentine in a warm water bath, coloured with a little lampblack, and brushed over the parts of the plate that must not bite further. Spon rates it better than Brunswick black; it sets hard overnight and can be thinned again with turpentine. Source: E. Spon, Workshop Receipts (first series), pp. 155-156. Picture: the book's text.
Mwanzo
Overnight to set

Maagizo

1

Dissolve the resin

Break small pieces of resin into a phial and pour spirits of turpentine over to about twice the height of the resin. Stand the bottle in a small saucepan of water kept hot on the hob, with a cork laid lightly in its mouth, and shake it now and then.

Vifaa kwa hatua hii:

Utomvu wa MsonobariUtomvu wa Msonobari1 small pieces
TapentainiTapentaini1 to twice the height of the resin

Zana zinazohitajika:

Chupa ya kioo (wazi)Chupa ya kioo (wazi)
Sufuria yenye kuta ndefuSufuria yenye kuta ndefu
MajiMaji
2

Colour with lampblack

Pour a small portion into a small pot, add a little lampblack to give it colour, and work it well together with the camel-hair pencil so there are no lumps.

Vifaa kwa hatua hii:

Masizi ya taaMasizi ya taa1 a little

Zana zinazohitajika:

Brashi nyembambaBrashi nyembamba
3

Apply and set

Brush it over the parts to be stopped out, or over the margin of the plate; left a night it sets hard. It is dry when a finger can be laid on it without sticking. Thin it again with a little turpentine.

Zana zinazohitajika:

Brashi nyembambaBrashi nyembamba
TapentainiTapentaini

Vifaa

3
  • 1
    Utomvu wa Msonobari
    1 small pieces
    Kishikilia Nafasi
  • 1
    Tapentaini
    1 to twice the height of the resin
    Kishikilia Nafasi
  • 2
    Masizi ya taa
    1 a little
    Kishikilia Nafasi

Zana Zinazohitajika

5

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