|This glue is ideal for
attaching photo tools to glass when used in an exposure unit.
Unlike tapes it does not leave a sticky residue and is easy to remove
without the need for cleaners.
FIXING A PHOTO TOOL USING UV GLUE,
To afix a phototool to glass couldn't be simpler. Fit the nozzle provided
onto the glue container so as to give a very small hole. A number of tiny
dots of glue should be positioned on the non-emulsion side of the photo
tool, outside the board area. The number and position depends on local
circumstances. Typically, four or six dots would be used: one on each
corner and one centrally on each of the long sides. The photo tool is
then positioned over the registration pins, or in the required position.
If a glass to glass system is being used the top photo tool is prepared
in the same way and placed on the lower tool: emulsion to emulsion.
The photo tools are then checked for alignment using a loupe or glass.
Once you are happy with this the vacuum frame can be closed and a final
check made of the registration.
Before carrying out the next step ensure that no glue has been spilt onto
the glass. If this has happened, it must be cleaned off the glass before
Assuming a vacuum has been pulled, the drawer can now be sent in for exposure.
The exposure time will depend on the unit being used (the wavelength and
As a starting point, the recommended exposure needed to set the glue is
usually about the same setting as would be used for a LPISM type ink.
The glue will cure with more exposure when using the machine normally.
Once the glue has cured, the vacuum frame is ready to be used.
REMOVING THE GLUE
The photo tool should peel off reasonably easily if care is taken not
to peel too fast. The glue on the glass will have formed a disc of around
10-15mm in diameter. To remove this pad, carefully roll the pad from the
glass using your thumb or finger. Try not to pick at the glue. Any loose
debris can be picked up by using an adhesive tape.