Hello
I just repaired same kind of delam few weeks ago. I used 24 h open 2
component epoxy, 2 pcs polycarponate wraped with duckt tape, 3 pcs
C clamps injection wrinch and heater. First clean and scrap injury well
all grease and wax must remowed, second place duct tape both sides
of deck to keep epoxy out wrong places, third mix epoxy and then heat
it little bit so that it becomes more fluidy suck it to wrinch and then inject
it to injury as deep you can. After that place piece of polycaponate wraped
with duct tape on both side of deck and shut injury pressing with c clamps.
Let it dry at least 24 h injury upwards in moderate warm place. I got this
repairing information from Samu of Powder flower finnish
board maker for me it works My Pen is all righ after few days in finnish
spring flush.