For small precision bonding
the adhesive is applied dropwise to the center of one surface.
The second surface is lowered at a slight angle onto the adhesive-laden
surface and light pressure is used to work the adhesive out to
the edges (see diagram A). For square and rectangular laminates,
the adhesive is applied in an "X" pattern from corner
to corner. Additional drops are added to the center of the X.
The two sheets are laminated starting at one end to push the adhesive
and air out in front of it. When the second surface is brought
into contact the adhesive in the center spreads out in a circular
fashion and the corners also have adhesive without trapping air
bubbles (see diagram B).
For large laminates a thin
layer of adhesive should be applied to the whole surface using
a draw bar or rollercoater. The two sheets are laminated starting
at one end to push the adhesive and air out in front of it (see
Fiber Optics -
Fish Gel -
Trade Shows -