SF Marine, UK, Hurricane 21 CC Part 2, longitudinal and bulkheads 

2 layers of 600g each side then tabbed in with another 3 600s into the boat

Hello, if you mean the open tope we have not yet, you can fill with resin or bonding compound if you wish. But it is a very long and tedious process and for efficiency i say it is not a viable option

@@sovereign_skipper I need to close the middle of the filler. recently started using ,,nidoplast,,