Procedures for milling and drilling
44 ProtoMat C30/C30-S
› The film milling program may now be started.
Film material comes in DIN A3 and A4 formats (special sizes available
upon request).
Note: The film coating is easily scratched and is water soluble, so
do not let it come into contact with water.
The film can be recopied with a staining device upon request.
See the section entitled "Practical tips" for more information.
10.11.1 Staining milled films
Duroscal black stain is available for milled negative films which can then
be used to make positives.
The fully milled engraving film is stained with Duroscal stain by pouring
the liquid onto a SAFIR pad and spreading it evenly over the whole film.
Excess stain must be wiped off with cellulose wadding.
The stained film must be held against the light to check it and to find
poorly covered areas so that they can be re-stained.
Now remove the coating immediately. The stain must not be allowed to
dry.
Caution! Follow the instructions on the stain container. The stain
must not get onto the back of the film as it cannot be removed. The
stain is also very difficult to remove from other surfaces (fabrics,
skin). Wear an overall and rubber gloves.
10.11.2 Removing the coating
Treat only one film per container when removing coatings to prevent any
damage to the second film resulting from contact between its reverse
and a surface which is wet from the stain.
Caution! Follow the safety instructions on the quick-acting coating
remover container.
Содержание ProtoMat C 30-S
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