GEDAKOP system
anodized aluminum plates (CopyPhot plates)

Fastest possible, copy-processed production of inexpensive, multi-colored aluminum anodized signs.

CopyPhot plates are anodized aluminum plates with open pores and a decorative surface structure, ideal for photomechanical printing purposes. CopyPhot sheets have a protective coating and a photo emulsion layer, ensuring a guaranteed shelf life of 8 months. The basic color silver is available in all thicknesses. Gold is only in 0.5; 1.0 and 2.0 mm available.
Individual pieces and small series. No specialist knowledge is required. Possible print templates include: offset or red film, polyester sheet printout, GEDA Laser Star from laser printers, blackened with GEDA Black. GEDAKOP COPY in minutes with the GEDAKOP system.

Home » GEDAKOP Eloxal photo print

GEDAKOP aluminum signs

Ideal for advertising signs and industrial signs such as front panels and machine signs.

Gedakop Fotoplatte
Gedakop Belichtung

1. UV exposure
Use the GEDA exposure device to copy your templates in photo quality onto the coated GADKOP aluminum photo plate. GEDAKOP aluminum photo plates are light-sensitive and may only be exposed to daylight for a very short time. Use offset film (reversed printing) so that when copying, the layered side of the film has direct contact with the photo emulsion on the plate. Commercially available UV copiers can be used for copying. It is advantageous to use devices with vacuum pressure. In order to determine the exact exposure time, a step exposure is recommended. Exposure example: UV devices approx. 1 minute (+/- 10/20%) exposure time.

Gedakop entwickeln

2. Developing
The exposed plate is developed with running cold water until the copied image (blank aluminum) can be seen. Spraying or etching machines are suitable for automatically developing GEDAKOP aluminum photo plates. When wet, these are sensitive and must not be handled by hand.

Gedakop trocknen

3. Drying
After developing, drain the water. Place absorbent paper without wrinkles and rub lightly with the flat of your hand. Dry completely with warm air.

Gedakop Färben

4. Coloring
Coloring the photo layer makes it easy to identify defects (e.g. film edge or dust). Such damage must be repaired with GEDA correction varnish. Allow the correction varnish to dry thoroughly. The developed area can now be colored with GEDACOLOR photo color. This can be done with a soft cloth. The color must be applied thickly so that it dissolves the protective layer underneath and penetrates the pores. Larger areas should be moved again after a short exposure time in order to achieve even coloring. Finally, use a dry, clean cloth to wipe away all excess paint and rub it dry. If a plate is to be multi-colored, it is carefully partially colored. To cover an area that has already been colored, the colored area can be covered with corrective varnish after briefly drying with warm air. This is applied generously and dried thoroughly. Then color the remaining surface and finally dry the panel briefly with warm air.

5. Stripping
Now the plate is stripped using the liquid GEDA stripper. Briefly dipping it into a bowl with a sponge dissolves the photo emulsion. Rinse plate with cold water.

Gedakop Verdichten

6. Sealing
To compact the panel, immerse it in boiling water in the GEDA seal bath (at least 95-98ºC for 40 minutes). This process completely protects the color in the closing pores of the aluminum. The GEDAKOP board is characterized by scratch resistance and solvent resistance. Finally, a final cleaning is carried out with Nitro or the environmentally friendly GEDA-Clean.

Schema Beispiel Eloxal-Unterdruck

7. GEDAKOP anodized quality – structure
The color is now hermetically sealed in the aluminum oxide layer and is therefore already weather-resistant, solvent-resistant, scratch-resistant, graffiti-proof and temperature-resistant.