I took some pics while I was getting a sailboard ready to vac bag on some balsa on the bottom, just out of interest it’s a lightweight urethane blank 28kg/m3 and the balsa pattern is just for looks not performance.
These pics are sticking the balsa together and then the balsa with some wet glass just before I flip it over onto the board to go into the bag
OK finally got the pics up this is how I seal the bag, no high tech stuff here I just put a knot in it!
More hi tech stuff here I use reticulation pipe attached to the fridge compressor, punch a hole in the bag with a screw driver, slide in the black retic pipe then squash on and seal with a lump of blue tac.
To seal the other end sometimes I do a knot, in this one I just twist the bag tightly then bend it on itself and wrap some tape around to hold it in place = perfect quick seal.
Some 9’6" mals in the racks one shaped 2 to go.
way to go bluey
i like your approach mate
nice finish as well
Fantastic bluejuice!
You know, if you have prblmes finding a home for those mals… Well, I could make room 
-doug
How was it sanding that board with the grain running in all of thoes directions?
Cheers,
Austin
Thanks guys, hopefully those pictures might help simplify the process for others.
Rhino I haven’t sanded the diagonal balsa ones yet I’ve got 3 of those on the go I don’t think sanding it will be a problem. For one of the mals I thought what the heck lets see what happens and I did ALL the sanding with an orbital and 180 grit rails as well!