Once the break has been 'glued', it can be initially be 'clamped' together by hand and the excess glue will squeeze out.
The excess glue has to be wiped away with a damp cloth and then the break can be clamped up.
Before clamping,
some greaseproof paper needs to be placed on either
side of the head around the break, then a chipboard block
placed on top and below. The greaseproof prevents
the 'clamping blocks' sticking to the guitar. On the head-face side I use a bit
of cloth over the greaseproof as well, which
further protects the surface of the head.
Once in place, an initial clamp will hold all the bits and pieces in place
before the other clamps are offered up.
For this job, 4 clamps
are ideal.
The only real problem here is that you cannot see
the break at this point, so before using the
greaseproof, blocks and clamps, you must make sure that the headstock surface
either side of the break will line up and come together when the clamps are
tightened.
Much of this is essentially down to experience.
Final adjustments can be made to the clamps, any further glue 'squeeze out' can be removed and then the job can be left to dry overnight.
NEXT STAGE - CHECKING THE
INITIAL REPAIR