"Spider cracks"

[bigshrimpin]

Cliff,
There's a good video on gelcoat repair from bennett marine.

You'll have to dig out the cracks, sand with a folded piece of paper, acetone, tape off the crack, use a tooth pick to apply to gelcoat into the crack, spray on a PVA wax, let dry, and wet sand.

http://www.boatus.com/boattech/casey/02.htm

http://bennettmarine.com/fiberglass_repair.html