i live in france and i etching since about 20 years and i just starting with this photopolymer and i can say this product is really formidable and very easy tu use
you can visit my website http://www.artabus.com/sachyherve to see some result in my last production in 2008 :D

Welcome Herve--I like your work! :)

Hello Herve, Glad you are enjoying the film. Your prints are very interesting and beautiful.
What is 'Black Method'?

Jennifer

i made a bad translation in fact i mean mezzotinto for "black method"

here yu can see some pictures of electroetching on copper with copper sulfate 50gr/ L in vertical tank (1.5 liter)
and some pictures about halogen 1000 w (12.7 cm) i used at 40 cm from the plate and during 48 sec with puretch film.This time of exposure can be changed in a range between 46 and 50 sec depending the brightness or darkness of the transparency.it's possible to use laser or inkjet transparencies.
there also some macrophotos of the result.The biggest difficulty is to obtain a goog aquatint in the dark areas.i'm looking for avoid open bite.For this moment i try very low voltage and current (0.3 v and 1.30 a) it seems to be good .The puretch film and the rosin seems resisting for 15 to 20 minutes but not more.It's not enough to go until the blacks.
i have made a lot of electro-etchings without rosin (colophane)only with the bitmap dots and the results were bad for the darkness areas (open bite)
but without current in ferric chloride the results were perfect even in the blacks.The combination puretch and rosin colophane works perfectly and i think it's necessary in the black tones
why looking for with electro-etching while is ok in ferric chloride ?
maybe for a big part for pleasure of searching and also working with ferric chloride is very dirty
and the bath used in electro-etching is re-usable a long time and transparent and i think it's possible to do electro-etching only with dilute sulfuric acid (1 per 20) very easy to find and less expensive but i saw rosine doesn't resist to electric field and puretch film resists very well in electric field with low voltage.
yu can see some results printed on this web site : http://www.artabus.com/sachyherve/?pic=-1&groupe=1 [in the folder electrogravures (acces rapide on the homepage )
yu can see some pictures of these works at : http://hervesachy.free.fr/electroetching2
About revelation with puretch , I want add this observation ,maybe that helps some people:when i start with puretch i used a tray to make the revelation the results were ok but it stayed always in the blacks areas an invisible film which stops the echting by the ferric chloride so i used very fine steel wool to bare the copper in these parts , i had some good results but not so reproductible.
Now i make the revelation with an air compressor at 100 psi (7 bars) from 30 cm, i rinse with water immediatly and i start again to revelate at 100 psi always from 30 cm , at all this proceed last one minute about , so i expose the plate revelated on sun light or uv-light a very long time (15 to 30 min) so the puretch is very hard and dark and resisting , after i use air compressor with the soda this time at 50 psi from 6 cm using several short pulverisations on the plate and so the copper is really bared where i want the black.
i hope my explanations are not too boring
see yu later for next achievers
:D